Optical waveguides inventions 03/06

20060067599 - Method and apparatus for improving frequency response in mode converters: A semiconductor based electro-optic modulator comprising a capacitively coupled ground allowing for DC biasing of the modulator and a pre-distortion circuit for alleviating RF skin effect and for increasing bandwidth of modulator. Electrical components and functions of modulator partly located on an alumina pane. Reduction of thermally-induced stresses by connecting...

20060067600 - Display element having filter material diffused in a substrate of the display element: Optical filter functionality is incorporated into a substrate of a display element thereby decreasing the need for a separate thin film filter and, accordingly, reducing a total thickness of a filtered display element. Filter functionality may be provided by any filter material, such as pigment materials, photoluminescent materials, and opaque...

20060067601 - Method of driving mach-zehnder light modulator and light modulating device: A method of driving a mach-zehnder light modulator includes alternately applying modulation signal voltages having equal positive and negative effective values as modulation signal voltages to a modulation electrode of the mach-zehnder light modulator. The mach-zehnder light modulator includes a mach-zehnder optical waveguide disposed on a base exhibiting an electro-optical...

20060067602 - Refractive index variable element and method of varying refractive index: A refractive index variable element includes a structure including quantum dots having discrete energy levels and a dielectric matrix surrounding the quantum dots, and an electron injector injecting an electron into the quantum dots through the dielectric matrix....

20060067604 - Method and apparatus for enhancing the extinction ratio in mode converters: A method and apparatus for optimizing a non-ideal, real mode converter to substantially achieve the performance of an ideal mode converter. The method consists of optimizing the input linear polarization to the mode converter to balance the power in the principal modes of the mode converter at the output of...

20060067603 - Passive method and apparatus for inducing mode conversion: A waveguide for use in polarization mode converters and polarization modulators using extrinsic strain to prerotate the principal axes and control birefringence is disclosed herein. The invention relates to the orienting of principal propagation axes in an optical waveguide by pre-stressing the waveguide, using an extrinsic stress, to re-orient the...

20060067605 - Photonic crystal optical temperature measuring system: A photonic crystal optical temperature measuring system and a method for measuring the temperature of an object. The photonic crystal optical temperature measuring system has at least one photonic crystal temperature sensor having a resonant cavity, the resonant frequency of which is a function of the temperature of the resonant...

20060067607 - Method and system for vertical optical coupling on semiconductor substrate: Connection between optical fibers and optical components within a semiconductor substrate. A lens is created at the front of a semiconductor substrate. A tapered hole is created in the back of the substrate exposing part or all of the surface of the lens. An optical component is formed or affixed...

20060067606 - On-substrate microlens to couple an off-substrate light emitter and/or receiver with an on-substrate optical device: Optical apparatus, methods of forming the apparatus, and methods of using the apparatus are disclosed herein. In one aspect, an optical apparatus may include a substrate, an on-substrate microlens coupled with the substrate to receive light from an off-substrate light emitter and focus the light toward a focal point, and...

20060067608 - Photoelectric composite interconnection assembly and electronics device using same: A photoelectric composite interconnection assembly having: a flexible substrate having an electric interconnection; and an electrical interface provided at both ends of the electric interconnection. A part of the electric interconnection is replaced by an optical transmission line....

20060067609 - Optical package: Optical packages are disclosed. In one aspect, an optical package may include a surface, a microelectronic device coupled with the surface, a first waveguide coupled with the microelectronic device, a second waveguide having a first end that is evanescently coupled with the first waveguide and a second end, a first...

20060067610 - Ultra-fast all-optical switch array: An all-optical switching array for switching a direction of optical signals is presented. The all-optical switching array includes a first substrate. Furthermore, the all-optical switching array includes a plurality of optical switches disposed on the first substrate, wherein each of the plurality of optical switches comprises a first state and...

20060067611 - Wavelength selective reconfigurable optical cross-connect: An optical coupling device including: at least a first input port for delivering an optical input signal beam that includes a plurality of wavelength channels; at least a first optical output port for receiving an optical output signal beam; a wavelength dispersion element for spatially separating the plurality of wavelength...

20060067612 - Bidirectional optical add/drop multiplexer and wavelength division multiplexed ring network using the same: Disclosed is a bidirectional optical add/drop multiplexer that includes a first filter for reflecting a first optical signal pre-selected among input forward optical signals and transmitting the remaining forward optical signals, a second filter for reflecting a second optical signal pre-selected among input reverse optical signals and transmitting the remaining...

20060067613 - Wavelength division multiplexed (wdm) coupler and method for making the same: A WDM coupler includes an optical collimating module disposed in an outer tube unit. The optical collimating module includes an optical filter coating formed on one of first and second collimating lenses, and adhesive bonds made from UV-curing epoxy for bonding together the first and second collimating lenses, the first...

20060067614 - Wavelength division multiplexed (wdm) coupler and method for making the same: A WDM coupler includes an optical collimating module disposed in an outer tube unit. The optical collimating module includes adhesive bonds made from UV-curing epoxy for bonding together an optical filter component and a first collimating lens, the optical filter component and a second collimating lens, the first collimating lens...

20060067615 - Optical rotating data transmission system with a cleaning device: An optical transmission system in a computer tomograph for transmitting modulated optical signals between a first unit and a second unit, the first unit being supported to be rotatable relative to the second unit, comprises: a light guide disposed along a circular or annular track on the first unit; at...

20060067618 - Optical fiber/waveguide polarizer and method of fabrication: The invention relates to an optical fiber polarizer comprising an optical fiber with at least a core, a cladding and surrounding medium (or outer cladding) where one or more sections of the optical fiber include periodic/aperiodic (chirped, quasi-periodic) modulation of the dielectric properties of the fiber in the direction of...

20060067617 - Optical interconnects in microelectronics based on azimuthally asymmetric long-period fiber grating couplers: Systems and methods, including azimuthally asymmetric fiber gratings are disclosed....

20060067619 - Optical transport network: An optical transport network comprises a monolithic transmitter photonic integrated circuit (TxPIC) InP-based chip and a monolithic receiver photonic integrated circuit (RxPIC) InP-based chip....

20060067616 - Pseudo slant fiber bragg grating, multiple series fiber bragg grating, optical fiber type coupler and optical connector: An optical fiber 4 having a clad diameter of 125 μm is made by adding Ge to a core 41 having a core diameter of 8 μm and a relative refractive index difference of 0.3 %, and two refractive index grating portions 41a and 41b having a slant angle of...

20060067620 - System and method for optical coherence imaging: Apparatus and method are provided for transmitting at least one electromagnetic radiation is provided. In particular, at least one optical fiber having at least one end extending along a first axis may be provided. Further, a light transmissive optical arrangement may be provided in optical cooperation with the optical fiber....

20060067621 - Electro-optic filament or fibre: In the field of flexible displays there is a need for an electro-optic filament that is capable of being woven, knitted or crocheted. An electro-optic filament or fibre (10) includes an elongate core (11) extending lengthwise within a volume (12) of polarisable material; and an outer electrode member (13) overlying...

20060067622 - Optical branch device and optical coupler module: An optical branch device, comprising: a branch portion having a first branch waveguide extended linearly and continuously from a waveguide in a basis portion, and second and third branch waveguides extended in the directions farther from the first branch waveguide in such a manner that the first branch waveguide is...

20060067623 - Reflector for a lighting and/or signalling device for an automobile: The object of the invention is a reflector intended to equip a lighting or signalling device for an automobile and comprising a polymer-based structure at least partly covered with a reflective coating, the said structure also comprising fibres....

20060067624 - Manufacturable connectorization process for optical chip-to-chip interconnects: An apparatus comprising a substrate having a trench therein, the trench extending to an edge of the substrate, a waveguide array positioned in the trench, the waveguide array extending to the edge of the substrate, and a ferrule attached at or near the edge of the substrate and spanning a...

20060067625 - Apparatus and method for connecting optical waveguides: Apparatus and method which adjusts an optical connection between a waveguide and an optical interconnection component that launches light into the waveguide or receives light emitted from the waveguide. The apparatus includes: an excitation light element emitting light that causes the waveguide to fluoresce into the waveguide via the optical...

20060067626 - Clamping member adapted to mount an optical connector pair in a connected state and capable of improving a component mounting density: In a clamping member for mounting an optical connector pair connected to each other in a first direction to an object, the clamping member includes a connector receiving portion for receiving the optical connector pair and a fixing portion to be fixed to the object. In addition, a coupling portion...

20060067627 - Blind mate optical connector: A connector is disclosed. The connector includes a floating component to receive a first set of optical waveguides, and a fixed component to receive a second set of optical waveguides and to facilitate optical alignment between the first set of waveguides and the second set of waveguides through automated alignments...

20060067628 - Neutral gender mt-type ferrule, adapter, and polishing method: A new, neutral gender MT-type connector ferrule and adapter are being disclosed. The ferrule consists of a body with a number of optical fiber channels and two, not removable, guide pins. The ferrule does not have a male/female configuration. In our invention, the guiding pins are fixed to the ferrule...

20060067629 - Optical component and method of manufacturing the same: The invention relates to an optical component including an optical fiber with a lens constituted by a single-mode optical fiber and a graded index optical fiber and a method of manufacturing the same. The invention provides an optical component in which an optical fiber with a lens can be accurately...

20060067630 - Optical transceiver module: Briefly, in accordance with one embodiment of the invention, a module assembly for an optical link may include a first frame and a second frame coupled with a lead frame. The second frame includes a pair of holes and the first frame includes a pair of posts. The holes may...

20060067631 - Apparatus for an electro-optical device connection: An optical fiber connector for releasably coupling an optical fiber to an electro-optical module is disclosed. The optical fiber connector includes a housing, a strain relief, a fiber retention clip, and a pair of latching arms. The housing includes a housing bore defined through at least a portion of the...

20060067632 - Splicing and connectorization of photonic crystal fibres: A method of coupling a spliceable optical fibre for transmission of light in its longitudinal direction to an optical component, the method comprising (A) providing the spliceable optical fibre, said spliceable optical fibre comprising: (a) a core region (10, 20, 25, 30, 110); and (b) a microstructured cladding region, said...

20060067633 - Device and method for wavelength filtering: Embodiments include devices and methods for wavelength filtering. For example, one embodiment includes a display comprising a plurality of the display elements each comprising a movable reflector, a first partial reflector, and a second partial reflector. The first partial reflector is positioned at a first distance from the movable reflector...

20060067634 - Enhanced performance mode converter: An optical mode converter comprising a slow wave electrode structure and including Schottky barriers for preventing an accumulation of free carriers in the optical waveguide region of the converter. The Schottky barriers are also used for suppressing higher order modes in the waveguide. Low refractive index insulators are used to...

20060067635 - Planetary cleaning motion optical connector cleaner: An optical connector cleaner. The optical connector cleaner includes a nonlinear path along which an optical connector is moved. By following the nonlinear path, the optical connector is subjected to planetary motion without requiring the operator to twist the connector by hand. The use of planetary motion improves the efficiency...

20060067636 - Connector and splice holder device: An integrated connector and splice holder comprises a tray mountable in a telecommunications closure, the tray including a coupling port. An optical connector coupling is mounted in the coupling port. A first fiber connector that includes a first fiber pigtail extending therefrom is mounted on the connector coupling. A fiber...

20060067637 - Splice holder device: A splice holder device includes a tray mountable in a telecommunications closure, the tray including a splice mounting mechanism configured to receive a splice device. The splice holder device also includes first and second fiber clamps disposed on the tray, wherein the first and second fiber clamps are each configured...

20060067638 - Uv-curable resin composition for cladding optical fiber: The present invention relates to a UV curable clad resin composition for optical fiber or waveguide comprising: (A) a photopolymerizable acrylate oligomer derived from the mixture composed of a polyol copolymer, an acid anhydride, an acrylate alcohol, a condensation polymerization catalyst and a polymerization inhibitor, HB) a photopolymerizable monomer, (C)...

20060067640 - Illumination package: An illumination package is disclosed in the invention. The illumination package includes an optical element, package base, and a light emitter. The optical element is designed to redirect a majority of light emitted from the light emitter to a direction approximately perpendicular to a longitudinal axis of the optical element....

20060067639 - Light pipe module: A light pipe module. A light pipe including a first wall having a first position at which a force is exerted and a bonding position adjacent to the first position accommodated in a protector comprising a protection element disposed on the bonding position, thereby preventing damage to the light pipe....

20060067649 - Apparatus and method for reducing slippage between structures in an interferometric modulator: A support structure within an interferometric modulator device may contact various other structures within the device. Increased bond strengths between the support structure and the other structures may be achieved in various ways, such as by providing roughened surfaces and/or adhesive materials at the interfaces between the support structures and...

20060067646 - Mems device fabricated on a pre-patterned substrate: A microelectromechanical systems device fabricated on a pre-patterned substrate having grooves formed therein. A lower electrode is deposited over the substrate and separated by an orthogonal upper electrode by a cavity. The upper electrode is configured to be movable to modulate reflected light. A semi-reflective layer and a transparent material...

20060067648 - Mems switches with deforming membranes: MEMS switches are formed with membranes or layers that are deformable upon the application of a voltage. In some embodiments, the application of a voltage opens switch contacts....

20060067641 - Method and device for packaging a substrate: A package structure and method of packaging for an interferometric modulator. A thin film material is deposited over an interferometric modulator and transparent substrate to encapsulate the interferometric modulator. A gap or cavity between the interferometric modulator and the thin film provides a space in which mechanical parts of the...

20060067642 - Method and device for providing electronic circuitry on a backplate: A MEMS-based display device is described, wherein an array of interferometric modulators are configured to reflect light through a transparent substrate. The transparent substrate is sealed to a backplate and the backplate may contain electronic circuitry fabricated on the backplane. The electronic circuitry is placed in electrical communication with the...

20060067653 - Method and system for driving interferometric modulators: Systems and methods for driving a display of MEMS devices are disclosed. In one embodiment, a display includes an array comprising a plurality of interferometric modulators, and a driving circuit coupled to said array, said driving circuit configured to provide actuation signals to drive said array based on a temperature...

20060067647 - Method and system for maintaining partial vacuum in display device: The time required for an interferometric modulator to switch from a state with a collapsed cavity to a state with an open cavity or vice versa, i.e., the switch time, is decreased by decreasing the viscosity of the gas filling the cavity. The viscosity is decreased by forming at least...

20060067644 - Method of fabricating interferometric devices using lift-off processing techniques: Embodiments of the present disclosure include a method of fabricating interferometric devices using lift-off processing techniques. Use of lift-off processing in the fabrication of various layers of interferometric modulators, such as an optical stack or a flex layer, advantageously avoids individualized chemistries associated with the plurality of materials associated with...

20060067650 - Method of making a reflective display device using thin film transistor production techniques: MEMS devices (such as interferometric modulators) may be fabricated using thin film transistor (TFT) manufacturing techniques. In an embodiment, a MEMS manufacturing process includes identifying a TFT production line and arranging for the manufacture of MEMS devices on the TFT production line. In another embodiment, an interferometric modulator is at...

20060067652 - Methods for visually inspecting interferometric modulators for defects: A method is provided for visual inspection of an array of interferometric modulators in various driven states. This method may include driving multiple columns or rows of interferometric modulators via a single test pad or test lead, and then observing the array for discrepancies between the expected optical output and...

20060067651 - Photonic mems and structures: An optical device includes a non-transparent substrate. The optical device further includes a first optical layer which is at least partially transmissive and at least partially reflective to incident light. The optical device further includes a second optical layer which is at least partially reflective to incident light. The second...

20060067643 - System and method for multi-level brightness in interferometric modulation: A display having a plurality of reflective display elements. In one embodiment, the display elements comprise at least one electrode having a plurality of active areas. In one embodiment, at least two of the sizes of the active areas are different with respect to each other, e.g., they are non-uniform...

20060067645 - System and method of testing humidity in a sealed mems device: One embodiment provides a method of testing humidity, comprising: determining a property of a device which encloses a plurality of interferometric modulators; and determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined property. In one embodiment,...

20060056755 - Method for manufacturing selective area grown stacked-layer electro-absorption modulated laser structure: This invention relates to a method for manufacturing selective area grown stacked-layer electro-absorption modulated laser structure, comprising: step 1: forming a selective growth pattern of a modulator section on a substrate; step 2: simultaneously growing a 2-stacked-layer active region structure of a modulator MQW layer and a laser MQW layer...

20060056757 - Optical connection device and optoelectronic hybrid apparatus including the same: An optical connection device includes: a substrate; an optical waveguide provided in the substrate; and plural optical connection ports provided in the optical waveguide and having at least one of a light output port and a light input port, the light output port outputting light to the optical waveguide, the...

20060056756 - Photonic circuit board: A photonic circuit board comprises a connection setting circuit, a group of electric wires for connecting the connection setting circuit and a plurality of devices, an optical I/O (input/output) device connected to the connection setting circuit and a two dimensional optical transmission medium connected to the optical I/O device and...

20060056758 - Photonic interconnections that include optical transmission paths for transmitting optical signals: Various embodiments of the present invention are directed to photonic interconnection architectures that provide high-speed interconnections of microscale or nanoscale devices. In one embodiment of the present invention, a photonic interconnection for interconnecting and synchronizing operation of components within a computing device comprises an optical transmission path for transmitting a...

20060056759 - Polished polyimide substrate: Polymer substrates, in particular polyimide substrates, and polymer laminates for optical applications are described. Polyimide substrates are polished to an average surface roughness of about 0.25μ inch, and single-layer or multi-layer waveguide structures are deposited on the polished polyimide substrates. Laminates including polymer or a hybrid organic/inorganic waveguiding film can...

20060056760 - Gain-assisted electroabsorption modulators: A light modulator having a waveguide and a resonator is disclosed. The waveguide routes light of wavelength λ past the resonator. The resonator is coupled to the waveguide such that a portion of the light is input to the resonator, the resonator having a resonance at λ. The resonator includes...

20060056761 - Optical switch: This application discloses an optical switch that uses a plasma field to alter the path of the light....

20060056762 - Lens optical coupler: An optical coupling system having a high efficiency in coupling light from a light source to an optical fiber. The system may have a ball lens and an aspherical lens situated along the same optical path. The ball lens may be glass and the aspherical lens may be plastic. The...

20060056763 - Singulated dies in a parallel optics module: A parallel optics module including singulated dies. A first singulated die includes a first semiconductor optical component, and a second die includes a second semiconductor optical component. The first and second dies are mounted to a substrate. The first and second dies to be integrated into a parallel optics module....

20060056764 - Optical signal encoding apparatus and decoding apparatus: There is provided an apparatus for performing, by optical code division multiplex access, at least one of encoding and decoding of wavelength-division-multiplexed light. The apparatus includes: an optical input/output section 203 for handling input/output of the wavelength-division-multiplexed light; and N fiber gratings (where N is an integer equal to or...

20060056765 - Architecture of connecting optical pcb, transceiver modules for optical pcb and optical connection block: Disclosed herein is an architecture of connecting a transceiver module for an optical PCB, in which an active photo-electric element and other components to be integrated in the optical PCB having waveguides are packaged, waveguides arranged in the optical PCB, and an optical connection block for optical coupling between the...

20060056766 - Optical device: An object of the present invention is to provide an optical device, in which a stress applying on ridge sections caused by the difference of thermal expansion between a metal film of which a ground electrode is formed and a substrate is reduced. In order to achieve this, in the...

20060056767 - Schemes for controlling optical signals in optically functional waveguide structures: Methods of attenuating, delaying the phase, and otherwise controlling an optical signal propagating along a waveguide are provided. According to one method, a variable optical attenuator structure is provided comprising a waveguide core, a cladding, an electrooptic polymer, and a set of control electrodes. The core, the cladding, and the...

20060056768 - Schemes for controlling optical signals in optically functional waveguide structures: Methods of attenuating, delaying the phase, and otherwise controlling an optical signal propagating along a waveguide are provided. According to one method, a variable optical attenuator structure is provided comprising a waveguide core, a cladding, an electrooptic polymer, and a set of control electrodes. The core, the cladding, and the...

20060056769 - Hybrid fiber/copper connector system and method: A junction box and hybrid fiber optic cable connector which permit repair of damaged fibers or copper conductors carried by a hybrid fiber/copper cable without requiring replacement of the entire cable assembly or retermination of the cable. A method of repairing a hybrid fiber/copper cable and connector....

20060056770 - Multi-fiber optical connector: An optical connector comprises a first block having a channel for accommodating a first set of optical cables and a second block having a channel for accommodating a second set of optical cables. Each block has three protrusions, each adapted to be engaged to a respective one of the three...

20060056771 - Optical connector assemblies: An optical connector assembly has several optical and electrical connectors mounted in mateable rectangular housings. Each optical connector is resiliently mounted in an alignment sleeve by means of a spring clip encircling the connector and contacting the sleeve. The alignment sleeves are themselves resiliently mounted in passages through the housings...

20060056776 - Flexible substrate for routing fibers in an optical transceiver: An optical transceiver for converting and coupling an information-containing electrical signal with an optical fiber including a housing, an electro-optical subassembly in the housing for converting between an information-containing electrical signal and a modulated optical signal corresponding to the electrical signal from which at least two optical fibers extends; and...

20060056773 - Optical transceiver module: An optical transceiver module includes an outer cage, a socket member, a locking mechanism, and a release mechanism. The socket member is disposed removably in the outer cage. The locking mechanism is provided on the outer cage and the socket member, and serves to lock releasably the socket member to...

20060056774 - Pluggable optical transceiver module assembly: A latching mechanism, which is configured to enable a pluggable optical transceiver module assembly to be plugged in or unplugged from a cage, is disclosed. The pluggable optical transceiver module assembly includes a bail clip for providing a latching portion locked in a locking member and an optical transceiver module...

20060056772 - Spectral broadband and a high efficiency light source: A spectrally broadband light source of high optical power for fiber optic applications. A number of LEDs are arranged as a monolithic array of adjacent surface-emitting, bright, on a wafer or chip. A microoptics array is arranged upstream of the monolithic LED linear array on the emission side for focusing...

20060056775 - Transceiver module and optical bench for passive alignment: The present invention provides a transceiver module having advantages of minimizing the number of optical parts by using an optical collimator to which a lens having the same shape as a diameter of an optical fiber is attached on a light input/output end. An transceiver module according to the present...

20060056778 - Laser module with improved lens housing and associated methods: A laser module for optically coupling a laser for generating laser light with an optical fiber having a light-receiving end. A laser assembly has a laser housing comprising a laser housing wall having a laser housing wall opening. A laser is mounted in the laser housing so that its laser...

20060056777 - Method and apparatus for coupling a laser to a fiber in a two-lens laser system: A laser module having a laser optically coupled with an optical fiber via a collimating lens and a focusing lens is formed. The laser is mounted in a laser housing so that its laser light output is directed toward a laser housing wall opening in a laser housing wall of...

20060056779 - Optical fiber connector: An optical fiber connector including a connector body, a connector case, and a latch spring. The connector body including an opening to receive an optical fiber, the opening having a first end and a second end, the optical fiber to enter the first end and to terminate proximate to the...

20060056780 - Optical module: To provide a small-sized and reliable optical module in which a light emitting element and an optical function element respectively remarkably different in a coefficient of thermal expansion are mounted in the same casing, in the invention, the optical function element is mounted on the casing made of first material...

20060056781 - Optoelectronic module: An optoelectronic module having a package encapsulating an optoelectronic device, a triplicated sleeve having a lower metal ring, an intermediate insulating ring and an upper metal cover which are coupled by press-fitting in concentric disposal, and a receptacle fitted upon the upper metal cover. The optoelectronic module does not emit...

20060056782 - Flexible optical closure and other flexible optical assemblies: Flexible closures and other flexible optical assemblies that are installed within a factory, or in the field, and then deployed using cable installation methods, wherein the flexible closures and assemblies have the ability to bend and twist without incurring physical damage to their structure, optical fibers and splices disposed within,...

20060056783 - Electro-optical cable for use in transmission of high voltage and optical signals under extremes of temperature: An electro-optical cable (38) which includes an optical element (48) having an elongated glass fiber core (50), a medial cushioning layer (54) concentrically surrounding the glass fiber core, and an outer hard shell (56) material surrounding the medial cushioning layer. The cable also includes at least one electrically conductive element...

20060056784 - Coherence microscope: A coherence microscope has a divider (3) that divides light emitted by a light source (1) into measurement light, which is supplied to and reflected by a specimen (13), and reference light. A superimposition device (25, 31) superimposes the measurement light reflected by the specimen (13) with the reference light....

20060056785 - Optical transmission line constituting method, optical transmission line and optical fiber: The present invention relates to a method of forming a transmission line capable of measuring more precise connection losses at low cost, and so on. At least of first and second optical fibers to be connected as components of the optical transmission line is selected such that, at one wavelength...

20060056786 - Optical members and compositions for producing them: It is disclosed a polymerizable composition for producing an optical member for 850 nm wavelength comprising: a polymerizable monomer composition and a compound, having a different refractive index from that of the polymerizable monomer composition, whose structure has a benzene ring substituted by a substituent having a Hammett value of...

20060056787 - Fiber distribution frame: A fiber distribution frame includes an enclosure having an exposed face. A door is connected to the enclosure for opening and closing with respect to the exposed face. A post is connected to the enclosure, a strap is connected at a first end to the post, and a latch is...

20060056788 - Precision fiber attachment: This invention is directed to a fiber attachment including a hot pad and solder glass that attaches an optical fiber to the hot pad. The attached is formed by positioning the optical fiber over the hot pad and aligning the optical fiber. The optical fiber is then raised and solder...

20060056789 - Bar-shaped light guide, illumination unit and image-scanning device: A bar-shaped light guide is provided to allow its emitting surface to be exposed from a white casing and is provided with a pattern for scattering and reflecting the light on a bottom surface opposite to the emitting surface. This pattern is formed by a white paint or minute irregularities....

20060056790 - Optical fiber with epoxidized polyolefin based coating: An optical fiber having at least one epoxidized polyolefin based polymer coating. The coating is formed from a crosslinkable composition having (a) at least one epoxidized polydiene oligomer having a first and a second end, the oligomer having at least one hydrocarbon chain that is substantially free of ethylenic double...

20060056791 - Arrangement for two-dimensional or three-dimensional representation: An arrangement for two- or three-dimensional display including an image display device consisting of a multitude of light-transmitting image rendering elements, on which bits of image information from several perspective views can be displayed, and a wavelength filter array and a controllable illuminator providing at least two modes of operations....

20060056795 - Multifunctional optical device: An optical device 1 includes an actuator 8 for driving an optical member 40 in the direction of an optical axis and a guide member 46 for guiding the optical member 40 being driven. The optical member 40 includes plural functional portions 42 and 44 having different functions, and the...

20060056794 - System, method, and computer program product for componentized displays using structured waveguides: An apparatus and method for a display system. The system for a componentized system including: an illumination module for generating a plurality of input wave_components; a modulating system for receiving the input wave_components and producing a plurality of output wave_components collectively defining successive image sets; and a first communicating system...

20060056792 - System, method, and computer program product for structured waveguide including intra/inter contacting regions: An apparatus and method including a waveguide having an outer surface layer, the waveguide including a structure underlying the outer surface layer and a waveguide portion proximate the structure, the waveguide portion including a contact region; and an element disposed within the contact region and functionally communicated to the structure....

20060056793 - System, method, and computer program product for structured waveguide including nonlinear effects: An apparatus and method for a transport. The transport including: a waveguide including a guiding region and one or more bounding regions for enhancing containment of transmitted radiation within the guiding region, the waveguide including an input region and an output; a plurality of constituents disposed in the waveguide for...

20060051010 - Coupled optical waveguide resonators with heaters for thermo-optic control of wavelength and compound filter shape: An integrated optical device is disclosed comprising a substrate, optical waveguide, and compound optical resonator having a temperature sensor, at least two coupled optical resonators, and a heater localized to each optical resonator. An optical input signal is coupled to one of the resonators making up the compound resonator to...

20060051009 - Optical deflector based on photonic bandgap structure: An optical deflector comprises a photonic crystal section, a light lead-in means for leading in light having a specific wavelength to the photonic crystal section and an external force application means for deforming the photonic crystal section by way of mechanical external force and changing the angle of refraction of...

20060051011 - Optical waveguide device: The present invention has an object to provide an optical device capable of leading out a light propagated through an optical waveguide to a desired substrate side face while maintaining the sufficient power of the light, within a range of limited substrate size. To this end, according to the optical...

20060051012 - Equalizer circuit for a light source: An optical equalizer circuit for a light source, the optical equalizer circuit comprising M optical couplers linked by differential delay lines, wherein coupling ratios for the respective M optical couplers of the equalizer circuit are calculated based on an input signal from the light source and a designed profile the...

20060051013 - System and method for controlling deflection of optical beams: A method of controlling deflection of an optical beam at a beam steering element. The method comprises receiving switching instructions indicative of a target one of a plurality of potential transmit or receive elements; determining a control signal associated with the target transmit or receive element; and applying the control...

20060051015 - Optical backplane system: An optical backplane system is described herein. In one embodiment, an exemplary system includes a backplane to interconnect multiple optical modules, multiple fiber interface modules (FIMs) having a back end inserted into multiple slots of the backplane respectively, each FIM having a front end to receive an incoming fiber carrying...

20060051014 - Two-dimensional photonic crystal optical multiplexer demultiplexer utilizing boundary reflection: The present invention has been made to provide an optical multiplexer/demultiplexer with a high multiplexing and demultiplexing efficiency. The object is achieved as follows. In an in-plane heterostructure photonic crystal in which vacancies 32 are periodically arranged in each of forbidden band zones 301, 302, . . . with different...

20060051016 - Dispersion compensation element, optical crystal, dispersion compensation system, dispersion compensation method: In a dispersion compensation element 10X, a plurality of regions (I) and (II) mutually different in radius and interval of holes 24 are set, and voltages applied at electrodes 30A and 30B are controlled in respective regions (I) and (II) to make variable the sign and the absolute value of...

20060051017 - Optical fiber transmission system with increased effective modal bandwidth transmission: A multi-mode optical fiber link is described. The multi-mode optical fiber link includes a first spatial mode converter that is coupled to a first single mode optical fiber. The first spatial mode converter conditions a modal profile of an optical signal propagating from the single mode optical fiber to the...

20060051019 - Electrooptic modulation element: On one pair of opposed side faces (1a, 1b) of electro-optic crystal (1), grooves (3a, 3b) are formed so as to make bottom faces of the grooves approach each other and make a distance between the bottom faces shorter than a predetermined distance, and the pair of electrodes (5a, 5b)...

20060051018 - Integrated optics component comprising a cladding and method for making same: This invention relates to an integrated optics component including at least one optical guide core (11) and at least one optical cladding (9) in a substrate (7), the core and the cladding being independent of each other in the substrate, at least one portion of said cladding surrounding at least...

20060051020 - Method and device for positioning an optical component between two optical fibres: The invention pertains to a process and to a device for positioning an optical component between two optical fibers furnished at their end with lenses comprising: drilling a support in such a way as to fix therein a capillary tube whose inside diameter is designed to slip an optical fiber...

20060051021 - Waveguide coupling mechanism: A system is disclosed. The system includes an external waveguide and an IC coupled to the external waveguide. The IC includes at least two lenses and a second waveguide. The lenses couple radiant energy from the external waveguide to the second waveguide....

20060051024 - Diffractive grating element for balancing diffraction efficiency: A diffractive grating element is divided into at least two different grating regions each having different diffractive properties and arranged on opposite sides with respect to a transition point to form a splitted grating structure. The diffractions generated by the at least two different grating regions are arranged to mutually...

20060051023 - Integrated optics sampling device and method for making same: The invention relates to a sampling device comprising in a substrate (15), a wave guide core (17) capable of transporting a light wave E and an optical cladding (19), at least one portion of the cladding surrounding at least one portion of the core in a zone called the zone...

20060051022 - Method and apparatus for detecting multiple optical wave lengths: Optical gratings that perform a number of functions at various wavelengths are formed by various methods that preserve spectral information within a wavelength band, the functions including: coupling radiation from one waveguide to another, controllable gratings that operate on different wavelengths in response to external control signals....

20060051025 - Polarization reversal structure constructing method and optical device having polarization reversal structure: A method for forming a domain-inverted structure includes the following: using a ferroelectric substrate (1) having a principal surface substantially perpendicular to the Z axis of crystals; providing a first electrode (3) on the principal surface of the ferroelectric substrate, the first electrode having a pattern of a plurality of...

20060051026 - Multilayer microstructural device: Multilayer microstructural device comprising a first and a second layer, which layers are aligned relative to each other by mating alignment structures. The first layer is a positive replication of a microstructural master comprising a number of microstructural elements, the second layer is a negative replication of the same microstructural...

20060051027 - Expanding single mode fiber mode field for high power applications by fusion with multimode fiber: Apparatus and methodology for the low coupling of optical fibers in high power applications. An end of a single mode optical fiber, or a polarization maintaining fiber, is cut and spliced to a relatively short segment of an index matched multi-mode fiber or an optical fiber without cladding (air cladded)...

20060051028 - Component for connecting optical fibers, optical fiber connection structure, and optical fiber connecting method: An optical fiber connecting method not causing any damage to the optical fibers and enabling effective use of space and an optical fiber connection structure formed by the method. The optical fiber connection structure is for connecting optical fibers by means of a component for connecting optical fibers comprising two...

20060051029 - Component feature cavity for optical fiber self-alignment: Optical fiber interfaces, apparatuses including the optical fiber interfaces, and methods for manufacturing the optical fiber interfaces. Optical fiber interfaces comprise a cup piece and a base piece. The cup piece includes an open first end for receiving an optical fiber end, and a second end includes an aligning protrusion....

20060051031 - Optical barrels with electromagnetic shielding: Reducing transmission of electromagnetic waves through a barrel portion of an optical module. A barrel for optically coupling an optical device to an optical fiber within a fiber optic cable can include a plastic portion and a metallic shielding portion for reducing transmission through the barrel. An optical device can...

20060051030 - Planar lightwave circuit type optical transceiver module: Provided is a planar lightwave circuit (PLC) type optical transceiver module, in which for a diplex optical transceiver module that uses different wavelengths in upstream and downstream, an optical waveguide connected to a light-receiving unit is a multi-mode waveguide and an optical waveguide connected to the light-emitting unit is a...

20060051032 - Optical connector: An optical connector to be connected to an optical plug holding optical fibers includes: a light-emitting element; a light-receiving element; and sleeves that optically connect the light-emitting element and the light-receiving element to optical fibers of the optical plug, respectively, in which a transmission sleeve and a reception sleeve are...

20060051033 - Optical transmitter and receiver module: To provide an optical transmitter and receiver module which can enhance a coupling efficiency between a laser diode and an optical fiber, and can enhance a photo-electrical conversion efficiency of light outgoing from an optical fiber in a photodiode, an optical transmitter and receiver module which is connected to an...

20060051034 - Connection method and connecting structure for photonic crystal fiber: A connection method for a photonic crystal fiber for connecting the photonic crystal fiber and a fiber to be connected, the photonic crystal fiber including a cladding region having a number of microholes and a core region having a same refractive index as that of the cladding region, includes the...

20060051035 - Protective device: A protective device for use in the protection of at least a portion of an elongated article which includes a main body, first and second parts which are connectible together such that, in an assembled position, the main body has a chamber therein. The first and second parts each have...

20060051036 - Method and apparatus for fiberscope: The disclosure generally relates to a method and apparatus for a fiberscope. In one embodiment, the disclosure relates to a chemical imaging fiberscope for imaging and collecting optical spectra from a sample having at least one illumination fiber for transmitting light from a first an a second light source to...

20060051038 - Electronic apparatus and design method: The invention realizes a wireless communication module that is capable of transmitting the fundamental wave with low loss and reducing the double higher harmonic wave level to a desired level or lower as the whole module. The invention provides a front end module to be used for a wireless communication...

20060051037 - Wavelenght-variable short pulse generating device and method: An apparatus and method for generating a wavelength-tunable short pulse that can generate wavelength-tunable short pulsed light in the visible-light wavelength band are provided. When ultrashort pulsed light is introduced into an optical fiber (3), a wavelength-tunable ultrashort soliton pulse is generated by a nonlinear optical effect through the soliton...

20060051039 - Nonlinearity compensation in a fiber optic communications system: An optical communications link is described, comprising first and second fiber lines in substantial scaled translational symmetry by a common scaling factor with respect to a second-order dispersion coefficient profile (oppositely signed) and with respect to at least one of a loss/gain coefficient profile and a nonlinear coefficient-power product profile...

20060051040 - Coated optical fiber and optical fiber coating system including a fast-gelling primary coating: The present invention provides optical fiber coating systems and coated optical fibers. According to one embodiment of the invention, a coated optical fiber includes an optical fiber having a core and a cladding; and a primary coating encapsulating the optical fiber, the primary coating having a Young's modulus of about...

20060051041 - Optical waveguide material and optical waveguide: The invention provides an optical waveguide material whose refractive index can be tailored without changing the ratio of Ta and Nb. An optical waveguide of this invention comprising an under-clad layer 1 and a core 2 that is formed on the under-clad layer 1 and has a higher refractive index...

20060051042 - Two-dimensional photonic crystal slab having local tree-dimensional structure: The present invention aims to provide a two-dimensional photonic crystal having an optical resonator, which allows the control of the front/back emission ratio of light. To achieve this object, a refractive index member (13) made of a material having a refractive index different from that of air is mounted on...

20060051043 - Determining mfd of optical fibers: When an optical fiber (1, 1′) is heated by an electrical discharge generated between electrodes (3) thermal light emission from the core and cladding of fiber forms a hot image which can be observed by an optical imaging system (9, 15, 17). Since the concentration of dopants in the core...

20060051044 - Wdm systems and methods: A WDM optical system including a media converter module including a plurality of converter cards, each converter card being configured to convert a native signal into an optical signal. The system also includes a panel bracket having an opening and a plurality of fingers, and a cable management panel including...

20060051045 - Fiber array for optical communication and method of manufacturing the fiber array: There is provided a multi-cored fiber array for optical communication which has high dimensional accuracy, can easily be prepared by machining, and is low in cost. There is also provided a fiber array for optical communication which can reduce the necessary amount of an adhesive used for fixing optical fibers...

20060051046 - Variable optical attenuator derived from sol-gel material and manufacturing method thereof: A variable optical attenuator and a method of manufacturing thereof are described. First, a bottom cladding is formed on a substrate. A waveguide structure having a core region and an attenuation region is subsequently formed on the bottom cladding by photolithography. A top cladding is then formed on the bottom...

20060051047 - Optical waveguides formed in glass-ceramic materials and method for making same: Optical waveguides are fabricated in glass-ceramic materials utilizing an ion-exchange process to pattern the waveguide at a temperature below the ceramming temperature of the glass-ceramic material. The optical waveguides may include optically-active dopants dispersed preferably within the crystallite phase of the glass-ceramic material....

20060051048 - Backlight with structured surfaces: A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structures are arranged to extract light from...

20060051049 - Configuration of optical transceivers to perform custom features: An optical transceiver (or optical transmitter or optical receiver) that includes a memory and a processor, which receives and executes custom microcode from a host computing system (hereinafter referred to simply as a “host”). A user identifies desired optical transceiver operational features, each of which may be implemented using specific...

20060045407 - Bending element light switch: A BENDING ELEMENT LIGHT SWITCH will be used to turn on or off the light signal in one of two adjacent fiber optic channels by the action of the electric field of the light passing through the channels. BENDING ELEMENT LIGHT SWITCH can be made adjacent to each other so...

20060045408 - Structural member bend radius and shape sensor and measurement apparatus: Structural member bend radius sensor apparatus 90 comprises three fibre Bragg grating (FBG) strain sensors 102 provided within three optical fibres 14, 16, 18. The optical fibres 14, 16, 18 and the FBGs 102 are embedded within a part-cylindrical shaped carrier member 92. The fibres 14, 16, 18 are provided...

20060045409 - Test device for identifying optical components: Methods, apparatuses, and systems for obtaining identification information about fiber optic components and optical assemblies in a non-invasive manner. The present invention further includes test devices for receiving a fluorescent emission having a predetermined spectral signature. The spectral signature provides identification information. The identification information can describe a characteristic of...

20060045411 - Integrated optical structure sensitive to the energy radiated into the cladding of a planar lightwave circuit: The described integrated planar optical structure comprises a principal waveguide having a core and a cladding that define a first light path ad means sensitive to the light radiated into the cladding comprising at least one secondary waveguide having a core and a cladding that define a second light path....

20060045410 - Optical assembly with optoelectronic device alignment: At least one optical waveguide is supported on a substrate and has a plurality of key apertures formed in a complaint element thereof. An optoelectronic device such as a vertical cavity surface emitting laser (VCSEL) has a plurality of projections that register with corresponding key apertures to position the optoelectronic...

20060045412 - Simultaneous interrogation of multi wavelength-modulated fiber optical sensors by modulating an arrayed waveguide grating based demultiplexer: A compact interrogator for the simultaneous interrogation of multi wavelength-modulated fiber optical sensors, includes a planar waveguide based demultiplexer receiving input signals from the sensors. An array of detectors is coupled to output waveguides of the demultiplexer corresponding to different nominal wavelengths. A tuning element matches the nominal wavelengths of...

20060045413 - Optoelectronic arrangement having a surface-mountable semiconductor module and a cooling element: An optoelectronic arrangement having a surface-mountable semiconductor module having at least one optoelectronic transmitting and/or receiving unit, a housing, in which the optoelectronic transmitting and/or receiving unit is arranged, and a mounting side of the housing, which, in the case of surface mounting of the semiconductor module on a printed...

20060045414 - Apparatus for redirecting optical signals in free space: Apparatus for redirecting a plurality of optical beams emanating from a respective plurality of optical transmitters arranged in a pattern along a first dimension and a second dimension. The apparatus comprises a plurality of refractive regions. Each refractive region intercepts the optical beams emanating from an associated group of optical...

20060045415 - Apparatus for switching optical signals: An apparatus for switching optical signals, comprising a first group of port cards adapted to receive input optical signals to be switched by the apparatus and a second group of port cards adapted to provide switched optical signals to an entity external to the apparatus. Each of the port cards...

20060045416 - Wavelength division multiplexing device capable of compensating for dispersion and dispersion slope using purely phase-sampled fiber bragg grating: Disclosed herein is a wavelength division multiplexing device. The wavelength division multiplexing device includes a first optical circulator and a Fiber Bragg Grating (FBG). The first optical circulator has a first plurality of ports. The FBG is connected to one of the first plurality of ports of the first optical...

20060045418 - Optical printed circuit board and optical interconnection block using optical fiber bundle: Disclosed is an optical printed circuit board (PCB) having a multi-channel optical waveguide, which comprises: an optical waveguide having an optical path for transmitting light beams; a groove for penetrating the optical waveguide; and an optical interconnection block inserted in the groove and connected to the optical waveguide to transmit...

20060045417 - Optical transmission circuit device: A plurality of boards are arranged perpendicular to a base plate and parallel to each other. An optical transmission circuit connects the boards according to an optical transmission method. Each of the boards has a photoelectric conversion circuit that converts optical signals into electric signals and vice versa. The optical...

20060045420 - Apparatus for free-space switching between planar lightwave circuits: A free-space optical switch for switching light beams between waveguides of planar lightwave circuits (PLCs). Switching is accomplished using a combination of lenses and micromirrors. The lenses and the controlled tilt of the micromirrors can establish a one-to-one interconnection path between waveguides of the PLCs....

20060045421 - Method for providing an optical interface and devices according to such methods: A method for providing an optical interface with at least one optical coupling structure for a packaged optical device is described. The at least one optical coupling structure may be, for example, wave-guides and/or microlenses. The packaged optical device includes an external alignment structure. The external alignment structure has a...

20060045419 - Optical fiber coupling componet: An optical fiber coupling part capable of reducing coupling loss while maintaining a large operating distance, and having a good module assembling property. AT least one GRIN lens having numerical aperture NA that is larger than numerical aperture NAs of a light-emitting source (such as a semiconductor laser) is fusion-spliced...

20060045422 - Slanted bragg grating gain flattening filter having spatially overlapping elementary filters and a manufacturing method therefor: An optical filter comprises a waveguide and a plurality of Slanted Bragg Gratings written in the waveguide, wherein at least two of the Slanted Bragg Gratings overlap one another. A method of producing an optical filter comprises the steps of passing an ultraviolet light through a first portion of a...

20060045423 - Diffractive coupler optimized for alignment tolerances: A diffractive coupler coupling light between an opto-electronic element and a waveguide minimizes variation in coupling over an offset range, while providing good coupling efficiency. The offset range may be along the optical axis and/or radial. The diffractive coupler has a long depth of field and no best focus....

20060045424 - Normally dark y-branch digital optical switches and variable optical attentuators: The present invention is directed to Y-branch digital optical switching and optical attenuator devices, which enhance the security of optical communications channels in the event of an electrical power loss....

20060045425 - Wavelength-selectable device and optical communication system including the same: The present invention relates to a wavelength-selectable device of a smaller structure capable of selecting a wavelength. The wavelength-selectable device has a waveguide substrate in which optical waveguides are built, a wavelength selector, and a movable mirror. The wavelength selector is fixed at a position where light propagating in the...

20060045426 - Broadband fiber optic tap: A broadband optical fiber tap for transferring optical energy out of an optical fiber having an optical fiber with a primary and secondary microbends for the purpose of coupling optical energy into the higher-order modes of the fiber, and a reflecting surface formed in the cladding of the fiber and...

20060045427 - Optical waveguide device: Optical fiber guides are provided outside a waveguide mounting region of a supporting substrate. Optical fibers are provided so as to be fitted in the optical fibers, respectively. In addition, end faces of the optical fibers and end faces to which a core of an optical waveguide is exposed are...

20060045428 - Fiber optic receptacle and plug assemblies: A fiber optic receptacle and plug assembly includes a receptacle adapted to be mounted within a wall of an enclosure and a plug mounted upon a fiber optic cable. The receptacle and the plug are provided with mating keys that permit the receptacle to receive only a plug of like...

20060045430 - Fiber optic receptacle and plug assemblies with alignment and keying features: A fiber optic receptacle and plug assembly comprising a fiber optic receptacle adapted to be mounted within a connector port of a network connection terminal and a fiber optic plug mounted upon an end of a fiber optic cable, wherein the fiber optic receptacle and the fiber optic plug comprise...

20060045429 - Round multi-fiber cable assembly and a method of forming same: A method of forming a round multi-fiber cable assembly is provided which includes the following steps: providing a round multi-fiber cable, a heat shrinkable tube, a tubing, a boot, a crimp tubing, and a multi-fiber connector; threading the heat shrinkable tube onto the multi-fiber cable; stripping off inner and outer...

20060045431 - Integrated fiber alignment photodetector: An integrated fiber alignment photodetector is provided by forming a plurality of photodiodes on a first substrate. A corresponding plurality of through holes are formed in a second substrate, which is then aligned to the first substrate and bonded thereto to form a fiber alignment photodetector assembly. Individual fiber alignment...

20060045433 - Methods and apparatus for optical component identification: Methods, apparatuses, and systems for obtaining identification information about fiber optic components and optical assemblies in a non-invasive manner. The present invention includes optical subassemblies (“OSAs”), and optical assemblies incorporating the OSAs where the OSAs comprise means, such as fluorescent material, for producing a fluorescent identification emission having a predetermined...

20060045434 - Optical semiconductor module and semiconductor device including the same: An optical semiconductor module comprises a guide which has a positioning portion for an optical transmission line, an optical semiconductor mounting surface from which one end face of the optical transmission line disposed in the positioning portion is exposed, and a wiring layer formed on the optical semiconductor mounting surface....

20060045432 - Xfp adapter module: A device which in an optical interface adapts XFP to a 300 pin MSA transponder socket, permitting replacement of 300 pin MSA transponders with an XFP module on an existing host circuit pack. The device performs dispersion compensation in a removable module, addressing issues of jitter, path length equalization, cross...

20060045437 - Laser package with digital electronic interface: Optical transmission components, systems, and packages where the package includes a common housing containing a laser for transmission of an optical signal, a photodetector optically coupled to the laser for monitoring the laser transmission, and a laser driver electrically coupled to the laser for providing a drive current to the...

20060045436 - Low electromagnetic interference (emi) shielded assemblies for electro-optical devices: In an optical transceiver and/or receiver for converting and coupling an information-containing electrical signal with an optical fiber, an opto-electronic subassembly including an opto-electronic device for converting between an information-containing electrical signal and modulated optical signal corresponding to the electrical signal; and a Faraday shield for minimizing electromagnetic interference entering...

20060045438 - Optical receptacle to enhance coupling efficiency with optical plug mated therewith and optical module installing the same: The present invention provides an optical receptacle that reduces the fluctuation of the optical coupling efficiency with the optical plug. The optical receptacle of the invention comprises a stub with a filler therein and a sleeve assembly to receive the optical plug. The stub with a cylindrical shape has an...

20060045435 - Optical receptacle with low transmission and photoelectric conversion module for the same: An optical receptacle with low transmission loss, which is connectable with an optical plug, is provided. The optical receptacle includes a photoelectric conversion module having the capability of making photoelectric conversion between light signals and electrical signals, and a module housing. The photoelectric conversion module is a molded interconnect device...

20060045440 - Fiber optic cable thermal protection device and method: A thermal protection device for a fiber optic cable includes a loop formed on the cable and a plurality of sub-units within the cable removed from an outer jacket. A circumferential cut is made through an outer jacket of each sub-unit. A tube is placed about the cut in each...

20060045439 - Optical cable components: This invention is directed to optical cable components fabricated from an extrudable blend of high crystalline polypropylene and an impact modifying polymer to provide an enhanced balance flexural modulus, Izod notched value, grease resistance, and low shrinkage properties. The polypropylene has a crystallinity of greater than weight percent and a...

20060045441 - Optical cable with easily removable inner sheath: Disclosed is an optical cable with a secondary sheath for surrounding and protecting a plurality of optical fiber units in which at least 1-core optical fiber is mounted in a buffer tube, wherein the secondary sheath is made of a mixture including 100 parts by weight of base resin selected...

20060045442 - Optical fiber cables for wellbore applications: A cable which includes conductor bundles prepared from at least one optical fiber positioned either centrally or helically about the center axis of the bundle, metallic conductors helically positioned around the bundles center axis, and a polymeric insulation material. A method of making a cable including forming a conductor bundle...

20060045443 - Fiber optic ribbons having one or more preferential tear portions and method of making the same: According to certain aspects of the present invention, a fiber optic ribbon is disclosed including a plurality of optical fibers arranged in a generally planar configuration, and a matrix disposed generally about the plurality of optical fibers. The matrix has a substantially continuous outer surface and defines an internal discontinuity...

20060045444 - Fiber bundles and methods of making fiber bundles: The present invention relates to fiber bundles and methods for making fiber bundles. According to one embodiment of the invention, at the endface of the fused fiber bundle, the ratio of the cross-sectional area of the endface to the cross sectional area of the plurality of optical fibers is at...

20060045445 - Optical switch and optical waveform monitoring device utilizing optical switch: The polarization direction of a signal is rotated by a polarization controller so as to be orthogonal to the main axis of a polarizer. A control pulse generator generates control pulses from control source with a wavelength which is different from the wavelength of the signal. The signal and the...

20060045447 - Method of processing optical fiber: There is provided a method of processing an optical fiber having a core and a clad. The optical fiber has a first facet and a second facet. The method includes fixing the optical fiber in a state in which at least a portion thereof is bent in a predetermined curvature...

20060045446 - Optical fiber with birefringence and large mode field diameter: According to the present invention the optical fiber includes a core with a first refractive index (n1) and the innermost core region with the refractive index n0, a cladding surrounding the core, the cladding having a third refractive index (n3), wherein n1>n3 and n0<n1. According to some of the embodiments...

20060045448 - Single mode optical fiber with electron vacancies: A single mode fiber is provided which is suitable for high-speed, large-capacity optical communication and for optical wiring. The single mode fiber has a first cladding region with a uniform refractive index, a core region with a refractive index higher than that of the first cladding region, and a second...

20060045450 - Broadband optical fiber: An optical waveguide fiber having a multi-segmented core surrounded by a cladding, the core having a central segment and an annular segment surrounding the central segment. The central segment has a positive relative refractive index profile, and the annular segment has a negative relative refractive index profile. The broadband optical...

20060045449 - Triple-band bend tolerant optical waveguide: An optical waveguide comprises a core, an inner cladding laterally surrounding the core, and an outer cladding laterally surrounding the inner cladding, wherein the core, inner cladding, and outer cladding have a depressed well configuration. The waveguide operates in three or more wavelength bands, wherein a first wavelength band is...

20060045451 - Triple-band bend tolerant optical waveguide: An optical waveguide comprises a core, an inner cladding laterally surrounding the core, and an outer cladding laterally surrounding the inner cladding, wherein the core, inner cladding, and outer cladding have a depressed well configuration. The waveguide operates in three or more wavelength bands, wherein a first wavelength band is...

20060045452 - Method and apparatus for reduction of optical coupling between pump lasers and photodetectors in optical amplifiers: In a first aspect, the present invention comprises an optical filter comprising a fiber having a core and a cladding and a light-absorbing coating applied onto a portion of the fiber cladding, the coating attenuating loosely bound cladding modes. In another aspect, the invention comprises a fiber amplifier apparatus comprising...

20060045453 - Optical fiber unit having excellent elasticity and optical cable including the same: Disclosed are an optical fiber unit in which at least 1-core optical fiber is mounted in and protected by a buffer tube, and an optical cable including the optical fiber unit. The buffer tube is made of a mixture, which includes a composite resin including a resin selected from polyolefin...

20060045454 - Asymmetric photonic crystal waveguide element having symmetric mode fields: A slab photonic crystal waveguide that preserves the parity of guided modes. The waveguide includes a photonic crystal layer interposed between two dielectric layers. The photonic crystal layer includes a periodic arrangement of asymmetrically shaped dielectric regions within a surrounding dielectric material. The waveguide precludes conversion of the state of...

20060045455 - Periodically poled optical crystals and process for the production thereof: Periodically poled crystals and a hydrothermal growth method for making such are disclosed. Electronically periodically poled crystals are employed as seed crystals in a hydrothermal growth process in order to produce novel crystals having deep ferroelectric domains....

20060045456 - Polarization conversion light pipe device: This invention provides a polarization conversion light pipe device suited for LCD- or LCoS-based projection applications. The polarization conversion light pipe device encompasses a light tunnel defined by four side reflection mirrors with a rectangular cross section. The light tunnel has a light entrance face at one end and a...

20060045457 - Optical networking circuit pack: An optical networking circuit pack is described. The circuit pack houses a plurality of pluggable electronic modules and includes an enclosure panel, a plurality of module identifiers, and a fiber management assembly. The enclosure panel has at least two collinear openings to receive electronic modules. The module identifiers reside on...

20060045458 - Holder and structure for organizing excess length: In a holder and a structure for organizing excess length by winding cables and the like, an excess length organizing holder comprises a baseboard which has a rotation axis vertical to a fixed plane, and a spool which has a flange whose edge is provided with two incisions and a...

20060045459 - High frequency noise measurement board: Optical test apparatus. A test apparatus for testing transmitter or receiver devices. The test apparatus includes a transmitter source configured to connect to an optical transmitter. A wide band, wide area optical detector is adapted to optically couple to the optical transmitter powered by the transmitter source. A filter is...

20060045460 - Photonic crystal device: A photonic crystal device according to the present invention includes: a first dielectric substrate 104 having a first lattice structure, of which the dielectric constant changes periodically within a first plane; a second dielectric substrate 105 having a second lattice structure, of which the dielectric constant changes periodically within a...