Optical waveguides inventions 06/06

20060140528 - Traveling-wave optoelectronic wavelength converter: Traveling-wave optoelectronic wavelength conversion is provided by a monolithic optoelectronic integrated circuit that includes an interconnected traveling-wave photodetector and traveling-wave optical modulator with a widely tunable laser source. Either parallel and series connections between the photodetector and modulator may be used. An input signal modulated onto a first optical wavelength...

20060140529 - Random refractive index modulated optical fibers: An optical fiber containing one or more random modulations capable of reflecting one or more random wavelengths of light passing through the optical fiber is provided. Each modulation is a section of the optical fiber in which the refractive index has been modified or a section of random refractive index...

20060140530 - Symmetric optical modulator with low driving voltage: A symmetric optical modulator with low driving voltage, wherein polarization of any one of branched waveguides formed on a substrate is inverted, and the two branched waveguides are simultaneously controlled by a center electrode formed on a top portion thereof, thereby ensuring a low voltage driving and embodying a characteristic...

20060140531 - Fiber-optic sensing system for measuring curvature: The invention provides a fiber-optic sensing system for measuring a curvature in a small and elongated cavity of an object. The system includes a light source, an optical fiber and a light signal reflecting device disposed at a distal end of the optical fiber. The optical source emits a light...

20060140532 - Method to monitor structural damage occurrence and progression in monolithic composite structures using fibre bragg grating sensors: A method of monitoring structural damage in a composite structure manufactured by co-curing, co-bonding or secondary bonding of several sub-components (7, 8), using fibre optic Bragg grating sensors attached or embedded to or between (in the bonding line) said sub-components, comprising a first step of measuring the wavelength spectra (31,...

20060140534 - Ceramic optical sub-assembly for optoelectronic modules: Optoelectronic components, specifically, ceramic optical sub-assemblies are described. In one aspect, the optoelectronic component includes a ceramic base substrate having a pair of angled (or substantially perpendicular) faces. The electrical traces are formed directly on the ceramic surfaces and extend between the pair of faces. A semiconductor chip assembly is...

20060140533 - Integrated circuit having an optical core: An optoelectronic integrated circuit (OEIC) having an optical core coupled to first and second interface circuits. The first interface circuit is adapted to convert an electrical input signal into an optical signal; the optical core is adapted to process the optical signal in the optical domain; and the second interface...

20060140535 - Optical switch: In order to provide a low-loss optical switch that is low in power consumption by providing the same as a self-holding type, and high speed and highly practicable, an optical switch of the present invention is composed of a quartz substrate (101), first and second input waveguides (102a and 102b),...

20060140536 - Optical switch, and apparatus and method for controlling optical switch: In an optical switch comprising a wavelength spatially dispersive optical element for spatially dispersing a wavelength-multiplexed beam according to wavelengths, a plurality of output ports and a plurality of mirrors onto which beams dispersed by the element are irradiated, and each of which is able to direct a reflected beam...

20060140537 - Optical device and fabrication method and apparatus for the same: An optical device fabrication method capable of fabricating optical devices with high precision and reliability in a simple process and at a low cost. The method of splicing a first optical device and a second optical device to fabricate a third optical device includes the steps of: (a) starting heating...

20060140538 - Surface reflection type phase grating: A surface reflection type phase grating 21 in which first metal film 23 is formed on a substrate 22, metal gratings 24 of a rectangular cross-sectional shape having a thickness d for which first-order diffraction becomes maximum by second metal film 24 formed of a material differing from that of...

20060140539 - Optical isolator using photonic crystal: An optical isolator using a photonic crystal. The optical isolator includes an input portion that in turn includes an input waveguide part and an input waveguide having a taper portion formed in the input waveguide part. An output portion includes an output waveguide part and an output waveguide formed in...

20060140540 - Optical waveguide structure: The present invention disclosed is an optical waveguide structure that has a first waveguide provided with the opposite ends A and B, a second waveguide with the opposite ends C and D, a third waveguide with the opposite ends E and F, and a coupling waveguide having its first beam...

20060140541 - Integrated optical device: An integrated optical device having a first and a second integrated waveguide; a section of the first waveguide and a section of the second waveguide arranged so as to be in optical coupling relationship. A first and a second modulated refractive index structures are respectively formed along the first waveguide...

20060140542 - Optical connector improved in mountability without an increase in number of components: In an optical connector having a housing defining an area surrounding a connection axis of the optical connector, the housing has a pair of slits spaced from each other and defining an elastic portion therebetween. A protruding portion protrudes from the elastic portion outward in a radial direction of the...

20060140543 - Connector and receptacle containing a physical security feature: An optical network comprising: (a) a plurality of different optical fiber receptacles for facilitating an optical connection to different information networks requiring different access authorization, each different optical fiber receptacle optically coupled to one and only one different information network, each optical fiber receptacle having an inner surface with a...

20060140544 - Functional optical module: There are provided a power supply device for an optical functional component that supplies power to the optical functional component with reliability for a long term and enables easy exchange of the optical functional component, and an optical functional module having such a power supply device, where the power supply...

20060140545 - Optical connector which can be assembled without using screw parts: In an optical connector, a holding member is coupled to a ferrule and attached to a housing. The ferrule has a flange portion brought into contact with the contact surface. The ferrule is adapted to receive an optical fiber. The housing has a contact surface and an engaging surface faced...

20060140546 - Optional waveguide, optional waveguide module, and a method for fabricating optional waveguide module: An optical waveguide module has a planar type optical waveguide having at least one core, an optical fiber for connecting with the core of the optical waveguide optically, and an optical element for connecting the core of the optical waveguide optically. The optical waveguide includes a groove for allowing an...

20060140549 - Connection arrangement for optical communication systems: An arrangement including: an electrical subassembly, an optical subassembly, the electrical subassembly and the optical subassembly having an associated electrical connection including at least one electrical lead extending therebetween, and an electrically non-conductive electromagnetic absorber body arranged to at least partly cover the electrical lead....

20060140547 - Optical module for multi-wavelength: An optical module includes a module body on which at least one photo diode is mounted, a filter holder inserted into the module body, and a thin film filter mounted on the filter holder in order to guide optical signals towards photo diodes in such a manner that optical signals...

20060140548 - Optical transceiver and passive optical network using the same: Disclosed are an optical transceiver and an passive optical network using the same. The optical transceiver includes a polarization splitter for splitting injected light input from an outside of the optical transceiver into a first polarization component and a second polarization component, a light injected transmitter for receiving the first...

20060140550 - Array optical sub-assembly: An array optical sub-assembly includes a base seat, an integrated circuit, a transparent substrate and a photoelectric element. The integrated circuit and the photoelectric element are bonded respectively to the base seat and the transparent substrate. The base seat and the transparent substrate form a sealed space to protect the...

20060140553 - Multiple channel optical tranceiver modules with compatibility features: Optical transceiver modules with multiple channel connection with connectors on a motherboard of a line card for network devices, such as a switch, router, crossconnect and the like, are presented. The modules have staggered electronic boards which can engage the connectors which are laterally displaced on the motherboard. The connectors...

20060140552 - Optical pluggable transceiver: The optical pluggable transceiver according to the present invention has features of a good heat dissipating function with a simplified configuration thereby reducing the cost of not only the component used but also the process itself. The transceiver of the present invention comprises a resin frame, an optical subassembly, a...

20060140551 - Optical transceiver: An optical transceiver has: an optical subassembly that has a built-in chip portion and a receptacle portion; a board electrically connected to one end of the built-in chip portion; a housing that houses the optical subassembly and the board; and a holding member to hold the optical subassembly....

20060140554 - Optical transceiver with optical sub-module thermally couples with optical transceiver without mechanical stress: An optical module free from the mechanical stress and used in an optical transceiver is disclosed, even the position of the module is fixed with repect to the hosuing not only from the viewpoint of the optical alignment but also the heat conduction. The optical module comprises the sleeve portion...

20060140555 - Semiconductor laser module: In a semiconductor laser module in which light emitted from a packaged semiconductor laser is incident on an optical fiber via a lens, the semiconductor laser, the lens, the optical fiber, and a holding member which holds the optical fiber are disposed in an integrated module structure, and at least...

20060140556 - Signal transmitting cable: A cable (302) has (8) fibres (304) are encapsulated by a UV curable layer (306) having a diameter of approximately (1010) microns, and (16) outer fibres (316) arranged in a circular formation around the inner fibres (304). The optical fibres (304) are held in position by means of the UV...

20060140557 - Fiber optic cable with strength member formed from a sheet: A fiber optic cable having at least one optical fiber component disposed within at least one formed area of a strength member. The strength member including a metallic or dielectric sheet having the formed area generally formed relative to an axis of the cable. The cable also includes a cable...

20060140558 - Optical fiber bundles and devices including them: The present invention provides optical fiber bundles that can be configured to yield beams of radiation having tailored polarization and/or intensity properties. According to one embodiment of the invention, an optical fiber bundle includes a plurality of polarization-maintaining optical fibers, each of the polarization-maintaining optical fibers having an input end,...

20060140560 - Optical fiber and a method for fabricating a low polarization-mode dispersion and low attenuation optical fiber: A method of fabricating an optical waveguide fiber that includes the steps of providing a cylindrical glass optical fiber preform having a longitudinally extending centerline hole, and closing the hole under conditions suitable to result in uniform and symmetric hole closure. The method may include first plugging a first end...

20060140559 - Optical fiber for long period grating, long period grating component and manufacturing method of the same: This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG comprises a core layer, a first cladding layer that surrounds said core layer and transmits the cladding...

20060140562 - Side-scattering light guides: The invention relates to side-scattering light guides that generally comprise a core of transparent optically homogenous material seeded with diffuser particles. The light guide also comprises an optically transmitting sheath, having a lowerrefractive index than the core, surrounding and in contact with the sides of the core to prevent any...

20060140561 - Single mode optical fibre as well as optical communication system: The present invention relates to a single mode optical fibre comprising a first central region having a radius r1, a maximum refractive index value n1 and at least one second ring surrounding said first central region, which second ring has a radius r2 and a minimum refractive index value n2,...

20060140563 - Systems and methods for a continuously variable optical delay line: The present invention provides systems and methods that employ a continuously variable optical delay line to introduce a delay into a transmitted optical signal. The delay line comprises a holey fiber configured in a spiral layout, wherein one end of the fiber is operative to a reflective fluid reservoir and...

20060140564 - Systems and methods for a continuously variable optical delay line: The present invention provides systems and methods that employ a continuously variable optical delay line to introduce a delay into a transmitted optical signal. The delay line comprises a holey fiber configured in a spiral layout, wherein one end of the fiber is operative to a reflective fluid reservoir and...

20060140566 - Heat-resistant optical fiber, a method of manufacturing the same, a method of fixing an optical fiber, and a heat-resistant optical fiber using a protective tube: To the outer peripheral surface of an optical fiber made of quartz or glass and having a core and a cladding is applied a microporous silica solution, which is synthesized from a mixture of silicon alcoxide, active alcohol for facilitating hydrolytic action, alcohol, and water, by means of the sol-gel...

20060140565 - Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same: An optical fiber that includes a core containing a first concentration of germanium, an inner cladding arranged on the core, the inner cladding containing a second concentration of germanium and having a first diffusion coefficient, and an outer cladding arranged on the inner cladding, the outer cladding having a second...

20060140568 - Method of controlling optical characteristic of optical element and optical device: An optical element is formed by using a plurality of pillar-shaped members arranged periodically and a pair of support members arranged perpendicularly relative to the direction of arrangement of the pillar-shaped members so as to sandwich the pillar-shaped members. The optical element showing a periodic structure of periodic distribution of...

20060140567 - Photonic crystal optical waveguide: A photonic crystal optical waveguide includes a optical waveguide portion having a core made of a photonic crystal with a structure having a periodic refractive index in at least one direction perpendicular to a propagation direction of guided light and having a uniform refractive index in the propagation direction of...

20060140569 - Planar waveguides with air thin films used as anti-reflective layers, beam splitters and mirrors: Integrated structures including a waveguide that passes through each of the sections, with the waveguide further including an in-waveguide mirror, a beam splitter or an anti-reflective element. The in-waveguide mirror, beam splitter or anti-reflective element are formed by using one or more focused ion beam (FIB) cuts or slits through...

20060140570 - Laser-active optical fiber for a fiber laser or an optical fiber amplifier: A laser-active optical fiber for a fiber laser or an optical fiber amplifier contains a laser-active fiber core (2) comprising an undoped inner region (22) which is surrounded by an outer region (24) that is doped with a laser-active material. In this manner a high-power laser beam may be generated...

20060140573 - Apparatus for detecting output power in dual-mode portable wireless terminal: Disclosed is an apparatus for detecting an output power in a dual-mode portable wireless terminal. The apparatus includes a first coupler for coupling a signal that passes through a first transmission signal path; a second coupler for coupling a signal that passes through a second transmission signal path; a power...

20060140572 - Data exchange architecture using optical links: A data exchange architecture using optical links. A device is proximate to a display screen. An optical module is coupled to the device. An optical link is coupled to the optical module, wherein the optical module to convert optical signals received by the optical module over the optical link into...

20060140574 - Formation of cleaved grooves in a passivation layer formed over a surface of a wafer prior to wafer singulation: Cleaved grooves, also referred to herein as “cleave streets”, are formed exclusively in a wafer passivation layer overlaying a wafer to provide for correctly aligned and sharp cleaves prior to singulation of the wafer into separate die or chips. The deployment of cleave streets is applicable to both Group III-V-base...

20060140571 - Method and apparatus for installing an optical-fiber unit capable of removing static electricity: Method and apparatus for installing an optical fiber unit capable of removing static electricity existing between the optical fiber unit and an installation tube, by using gas flow. In the method and apparatus, ions are included in a gas for installing the optical fiber unit so as to neutralizing and...

20060133712 - Apparatus for and method of controlling optical interferometer: An apparatus and method for controlling an optical interferometer are provided. The method includes setting a thermoelectric cooler (TEC) temperature of the optical interferometer to a room temperature, obtaining an optimal temperature using a difference between two output powers of the optical interferometer based on eye opening of the two...

20060133711 - Methods and apparatus for single fiber optical telemetry: Single fiber optical telemetry systems and methods are disclosed. The methods and systems facilitate input and output via a single fiber optic interface. The optical telemetry systems and methods also facilitate faster data transmission rates between surface and downhole equipment in oilfield applications....

20060133713 - Optical waveguide modulator equipped with an output light monitor: An optical waveguide element having a plurality of surface waveguide portions. A connecting portion for connecting the surface waveguide portions. An output light-outputting waveguide portion connected to the connecting portion each on a dielectric substrate. An output light optical fiber connected to an output end of the output light-outputting waveguide...

20060133715 - Fiber optic pressure sensor for catheter use: The invention provides a miniature robust fiber optic pressure sensor. The miniature fiber optic sensor comprises a Fabry-Perot chip bonded to an optical fiber. The invention provides a new sensor design that reduces the amount of adhesive required to bond the optical fiber to the Fabry-Perot sensor such that the...

20060133714 - Method and apparatus for the monitoring and control of combustion: A sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to...

20060133716 - Low loss lateral optical waveguide intersections: A geometrically shaped optical waveguide crossing with minimal transmission loss is described. A symmetrically tapered waveguide intersection is used to minimize loss in the intersecting region where at least two optical waveguides cross one another. The present invention embodies a waveguide crossing that includes tapering the width of the waveguides...

20060133717 - Method of adjusting a center wavelength of modulated sources wavelength grid with the passband of an optical combiner: Disclosed is a method of adjusting a center channel wavelength of a group of channel wavelengths from of a plurality of modulated sources, integrated in a photonic integrated circuit (PIC), relative to the center of a wavelength passband of an optical combiner, such as an arrayed waveguide array (AWG), also...

20060133718 - Optical-routing boards for opto-electrical systems and methods and apparatuses for manufacturing the same: Disclosed are optical-routing boards for opto-electrical systems having optical waveguides embedded in non-laminated optical substrates that enable optical signals to be routed among opto-electric components mounted on the top surfaces of the optical substrates. Methods for making the optical-routing boards are also disclosed. The waveguides are formed by focused pulse-laser...

20060133720 - Coupled segmented waveguide structures: Segmented waveguides electrically coupled to a resonator and methods for electrically coupling waveguides to a resonator are disclosed. The resonator can be a split ring resonator. The disclosed structures can be useful to fabricate waveguide devices included, for example, in sensors and optical elements....

20060133719 - Extracting phase error in waveguides: Provided are a method and a system, wherein optical beams of a plurality of wavelengths are directed through a plurality of optical devices, wherein waveguides comprising the optical devices have different fabrication errors, and wherein the waveguides have a plurality of waveguide lengths and a plurality of waveguide widths. Optical...

20060133721 - Circuit, system and method for optical switch status monitoring: A system and methods for monitoring in a current switching configuration the status of an optical switch that includes at least one electrically addressable element operative to provide the switching action, the monitoring capable of predicting a functional ability of the switch to assume another switching configuration. The system comprises...

20060133722 - Variable dispersion compensation equipment, optical transmission system using it and method of setting dispersion compensation quantity: An optical switch having plural input terminals and plural output terminal, plural dispersion compensators, and a controller for monitoring the change-over state of the optical switch and the dispersion compensation quantities of the plural dispersion compensators and controlling the setting of the optical switch are provided. In response to a...

20060133723 - Directing optical channels using a reflective device: A device for directing one or more optical channels includes one or more micromirror elements. A micromirror element has a mirror and a mirror controller. The mirror is operable to reflect light at a first interaction area to yield a first passband for an optical channel, and to reflect light...

20060133724 - Piezoelectric optical micro-switch structure: A piezoelectric optical micro-switch structure includes a base unit, a first cantilevered arm base, a first piezoelectric controller, a second cantilevered arm base, a second piezoelectric controller and an optical reflector. The base unit bears the first cantilevered arm base and the second cantilevered arm base each of which has...

20060133725 - Compact and high performance opto-mechanical switch: A system and method for a 1xN fiber optical switch is disclosed. The switch comprises (1) a pair of vertically oriented wedge prisms and (2) a collimator. The collimator comprises a four fiber ferrule and a lens. When no wedge prisms are inserted into the optical path, the signal is...

20060133726 - Optical waveguide, optical device, and method of manufacturing optical waveguide: An optical waveguide is formed on a substrate and includes a curved ridge structure, a curved optical path, and a buffer layer. The curved ridge structure is formed on the substrate so as to have a curvature in a longitudinal direction of the curved ridge structure. The curved optical path...

20060133727 - Adaptive transmitter arrangement for optical fibre communications and related method: An arrangement for optical fibre communications, for used, e.g., in millimetre (MM) fibre transmission systems—includes: a source of optical radiation defining an offset launch path of optical radiation into an optical fibre, and at least one active element actuatable to selectively vary said offset launch path in order to achieve...

20060133730 - Base station optical line terminal of passive optical subscriber network using wavelength division multiplexing method and method for manufacturing the same: A method for manufacturing a plurality of light sources is provided with a low cost to economically construct a passive optical subscriber network of a wavelength division multiplexing method using a wavelength division multiplexing and demultiplexing device. More specifically, disclosed is a method for manufacturing a plurality of light sources...

20060133728 - Fabrication of structures in an optical substrate: A system and method for fabricating structures in an optical substrate. An optical element produces first and second write beams that intersect at a first intersection location at the optical substrate. The first intersection location includes a fringe pattern produced by the first and second write beams. The optical element...

20060133729 - Method for fabricating laser diode having optical fiber bragg grating as front mirror of external resonator and laser diode fabricated thereby: A method for fabricating a laser includes preparing an optical fiber including the optical fiber Bragg grating formed at a region thereof, and a ferrule provided with a cylindrical free space penetrating both ends thereof; applying a first thermal epoxy resin to a partial region of the outer cylindrical surface...

20060133732 - Lensed tapered optical waveguide: An optical coupling element for use in large numerical aperture collecting and condensing systems. The optical coupling element includes a curved surface such as a lens at the output of a tapered light pipe (TLP). The TLP in combination with the curved surface alters the divergence angle and the area...

20060133731 - Optical apparatus: Optical apparatus comprising a pump guiding fiber comprising a fiber cladding, a fiber core and an attachment section, the attachment section comprising a straight core section and a tapered core section, and a receiving fiber comprising an inner clad to which the attachment section is attached....

20060133733 - Power harvesting: A power harvesting module comprises at least one electromagnetic (EM) radiation intensity modulator configured to receive a first EM radiation from at least one source and at least one energy converter configured to at least partially convert the energy of the first EM radiation during modulation into electrical energy....

20060133734 - Optical coupler for measuring wavelength: An optical coupler for measuring mean wavelength of a broadband optical source is described. Sensitivity of the optical coupler to variations of refractive index and coupler length is minimized. The sensitivity to the variations of the refractive index is minimized by making a difference between the group refractive indices of...

20060133735 - Diamond 2d scan for aligning an optical fiber to an optical output port: A method of aligning an optical fiber to a laser diode obtains first light from the laser at a point designated as the center of a planar geometric shape. Data points are taken at the vertices of the shape, whereby a scan measures alignment quality at each of the vertices...

20060133736 - Optical polarity modules and systems: A module and harness are described that allow for connectors in each to be mated with other connectors in a key up to key down orientation. The module and harness may also be a part of a larger optical assembly. The optical fibers in the module and harness connect a...

20060133737 - Fiber-optic connector for releasably coupling an optical fiber to an optoelectronic device and related method: A module for coupling to a fiber-optic cable includes an optoelectronic assembly that includes a bracket and a metal receptacle. The metal receptacle includes an attachment member operable to releasably connect the receptacle to the bracket, an alignment end operable to receive an alignment device, and a connector end operable...

20060133741 - Bending an optical fiber into a backplane: A right angle bend mount for bending an optical fiber into the plane of a circuit board. The mount includes a base and a cover that is pivotably connected to the base by a hinge. A clamp is formed by a first pair of opposed surfaces of the base and...

20060133738 - Electronic devices including fiber optic cable and methods for forming the same: A handheld, personal electronic device includes a handheld device housing. An electronic component is disposed in the handheld device housing. A fiber optic cable is routed through the handheld device housing and is operably connected to the electronic component to permit transmission of optical signals to and/or from the electronic...

20060133740 - Optical receptacle having stub capable of enhancing optical coupling efficiency and optical module installing the same: The present invention provides an optical receptacle capable of reducing the optical coupling loss with the connector plug to be mated with the receptacle, and an optical module installing the receptacle. The receptacle of the invention includes an optical waveguide, a stub, and a body. The stub includes a first...

20060133739 - Silicon optical bench-based optical sub-assembly and optical transceiver using the same: The silicon optical bench-based optical sub-assembly of the present invention includes an optical fiber ferrule, a silicon optical bench-based optical device, a support and an optical adaptor. The silicon optical bench-based optical device is provided with an optical device chip for converting optical signals into electrical signals and vice versa,...

20060133742 - Universal multi-port optical block assembly with configurable optical port: A multi-port optical block system comprises a multi-port block assembly and an optical-to-electrical conversion apparatus. The multi-port optical block assembly is configured for having a connector of the optical-to-electrical converter apparatus attached thereto. The connector of the optical-to-electrical conversion apparatus is configured for being selectively attached to and detached from...

20060133744 - Optical transciever with capacitive coupled signal ground with chassis ground: An optical transceiver includes a chassis, a printed circuit board, a conducting strip, a cover and a gasket. The chassis has a first reference. The printed circuit board has a second reference. The conducting strip is adjacent the printed circuit board and the cover is coupled over the printed circuit...

20060133743 - Planar decoupling in optical subassembly: An optical transceiver includes a housing, a circuit board, an optical subassembly and a decoupling disk. The circuit board is configured to be coupled within the housing. The optical subassembly has a can and a barrel and the optical subassembly is coupled within the housing. The decoupling disk is coupled...

20060133745 - Method for fusion splicing optical fibers and fusion splicer: A method and apparatus capable of fusion splicing optical fibers to have a low loss or a prescribed loss. The method includes (a) detecting fiber positions and core positions of optical fibers to be spliced at an abutting position and a fiber offset that is caused when said optical fibers...

20060133746 - Fiber optic cables manufactured as an assembly and method for manufacturing the same: A plurality of fiber optic cables are manufactured as an assembly of fiber optic cables that are later separated into independent fiber optic cables. A method of manufacturing the fiber optic cable assembly is also described. A jacketing cover is extruded over components of the fiber optic cables with a...

20060133747 - Multi-fiber cable for efficient manageability of optical system: One embodiment disclosed relates to a manufactured multi-fiber cable for optical systems. The multi-fiber cable is manufactured to include a plurality of individual fiber cables, each individual fiber cable including a single optical fiber surrounded by a protective covering. There is a main cable hose around the individual fiber cables,...

20060133748 - Fiber optic drop cables suitable for fiber to the subscriber applications: A fiber optic drop cable is disclosed that includes at least one optical waveguide disposed within a tube, a first and second strength assembly, and a cable jacket. Each strength assembly includes a strength component and a plurality of strength members, wherein the respective plurality of strength members are radially...

20060133749 - Optical fiber ribbons having a preferential tear portion formed by curing and methods therefor: An optical fiber ribbon having a plurality of optical fibers connected by a radiation curable matrix and a method of manufacturing the same are disclosed. The optical fiber ribbon includes at least one preferential tear portion formed by a weakened portion in the matrix, the weakened portion of the matrix...

20060133750 - Light petal generation structure for optical fibers: A light petal generation structure for optical fibers, especially applied to a decorative optical fiber, collects loss light at a nodule position, and directly transforms into an enlarged and bright light petal. The structure uses primarily an optical fiber with side losses, wherein light-dot generation grooves are opened at a...

20060133751 - Method of imparting twist to optical fiber: A method for producing low-PMD fiber, in which a glass fiber is drawn from an optical fiber perform by a tractor which pulls such optical fiber from said perform; subsequent to said tractor pulling the fiber is twisted about its axis to increase the magnitude of twist which is imparted...

20060133753 - Hole assisted fiber device and fiber preform: A hole-assisted fiber comprises a core region and a cladding region, where the cladding region includes multiple substantially elliptical holes spaced apart from each other to surround the core region. The holes are filled with one of a gas and a liquid to form a low refractive index portion of...

20060133752 - Photon energy material processing using liquid core waveguide: Briefly in accordance with one embodiment, the present technique provides a liquid core waveguide photon energy material processing system. The system includes a photon energy source configured to generate a high intensity photon beam for material processing. The system also includes a liquid core waveguide configured to transmit the high...

20060133756 - Methods of forming optical devices: Provided are methods of forming an optical device. The methods involve: (a) applying over a first substrate a dry-film including: a carrier substrate and a first polymeric layer over the carrier substrate; (b) forming a second polymeric layer over the first substrate by a method that includes coating over the...

20060133755 - Optical dry-films and methods of forming optical devices with dry films: Provided is a dry-film suitable for use in forming an optical component. The dry-film includes a carrier substrate having a front surface and a back surface. A negative-working photoimageable polymeric layer is disposed over the front surface of the carrier substrate, and includes a photoactive component and units of the...

20060133754 - Ultra low-loss cmos compatible silicon waveguides: A low loss optical waveguiding structure for silicon-on-insulator (SOI)-based arrangements utilizes a tri-material configuration including a rib/strip waveguide formed of a material with a refractive index less than silicon, but greater than the refractive index of the underlying insulating material. In one arrangement, silicon nitirde may be used. The index...

20060133757 - Hand held symbology reader illumination diffuser: A hand held industrial identification symbol reader projects diffuse illumination onto a region of interest to produce high contrast images of symbols. The diffuse illumination is particularly well suited for producing images of symbols that are marked directly on objects. The diffuse illumination is created through the use of an...

20060133758 - Optical fiber termination apparatus with connector adaptor and method for using the same: An optical fiber termination apparatus includes a housing defining an optical fiber receiving chamber and having a connector adaptor receiving opening. A connector adaptor is positioned in the connector adaptor receiving opening. The connector adaptor has a connector opening therein extending from outside the housing to the optical fiber receiving...

20060133759 - Optical fiber termination apparatus, entry sealing members and methods for using the same: An optical fiber termination apparatus includes a body portion having an optical fiber outlet therein and a connector receiving portion extending from the body portion and having an outer wall defining an optical fiber connector receiving chamber and having an opening to the connector receiving chamber at an end thereof...

20060133760 - Attenuator: In the manufacture of an optical attenuator having a desired value of the optical loss end regions of two optical fibers are placed with an offset in the transverse direction in relation to each other and having their end surface at each other. Thereafter the region at end surfaces is...

20060133761 - Thermal gradient prism for active beam steering: A variable optical attenuator (VOA) for use in an optical fiber communication system has a substrate, a thermal gradient prism and a heating element deposited on the prism. Heat is applied to the thermal gradient prism through the heating element. An optical signal is input into the prism via an...

20060133762 - Polymer optical waveguide and method of making the same: A polymer optical waveguide has a substrate, a buffer layer formed on the substrate, and a polymer waveguide main body formed on the buffer layer. The buffer layer is made of a polymer material that can absorb a difference in thermal expansion coefficient between the substrate and the polymer optical...

20060133763 - Method and apparatus for modeling the modal properties of optical waveguides: A method and apparatus models one or more electromagnetic field modes of a waveguide. The method includes sampling a two-dimensional cross-section of the waveguide. The method further includes calculating a first matrix having a plurality of elements and having a first bandwidth using the sampled two-dimensional cross-section of the waveguide....

20060133767 - Method of producing domain inversion parts and optical devices: A comb electrode 3 is provided on a first main face 2a and a uniform electrode 4 is provided on a second main face 2b of a substrate made of a ferroelectric single crystal of a single domain, and a voltage is applied on the comb electrode 3 and the...

20060133765 - Mounting case for electro-optical device, method of manufacturing mounting case for electro-optical device, electro-optical device, and electronic apparatus: A mounting case for an electro-optical device is used in an electro-optical device on which a display image is displayed and accommodates an electro-optical panel having an image display region on which the display image is displayed. The mounting case includes a main body that has a plate member formed...

20060133766 - Optical dry-films and methods of forming optical devices with dry films: Provided is a dry-film suitable for use in forming an optical component. The dry-film includes a carrier substrate having a front surface and a back surface. A non-photoimageable, thermally curable polymeric layer is provided over the front surface of the carrier substrate. The polymeric layer includes a thermally active component...

20060133764 - Processing head for formation of mirror plane of optical waveguide sheet, processing apparatus, and method of forming mirror plane of optical waveguide: An optoelectric device able to easily maintain a flexibility of a design so as to manage a design change and able to manage a production of a small amount and numerous varieties of products, and a method for the same, in which a processing head is provided at a top...

20060126986 - Reduced loss ultra-fast semiconductor modulator and switch: A fast optical modulator or switch with reduced optical loss is disclosed. An apparatus according to aspects of the present invention includes an optical splitter disposed in a semiconductor material. An optical beam having a first wavelength is split by the optical splitter into first and second portions. First and...

20060126987 - Electroabsorption modulator and method of manufacturing the same: Provided is a double waveguide electroabsorption modulator, in which two spot size converters are integrated between first and second optical waveguides, thereby reducing an insertion loss between an optical fiber and an optical modulator while favorably operating even in high input optical power. Therefore, the electroabsorption modulator can stably operate...

20060126988 - Optical device and drive voltage supply device: The present invention is directed toward an optical device and a drive voltage supply device, which prevent occurrence of a d.c. drift and enable stable selection of light of desired wavelength without deteriorating a filtering characteristic. The optical device comprises a substrate having an electrooptical effect; an optical waveguide formed...

20060126989 - Method and apparatus for dynamic polarization control: A dynamic polarization controller (“DPC”) that and method of dynamic polarization control useful in optical networks is disclosed. The DPC of the present invention has a polymeric optical waveguide formed on a substrate, such as a silicon wafer. An intermediate portion of the waveguide is suspended over a cavity, and...

20060126991 - In-fiber whitelight interferometry using long-period fiber grating: An optical fiber sensor is provided for displacement measurement, pressure measurement, refractive index measurement, bio/chemical detection, and/or microscopy....

20060126990 - Magneto-optical sensors: A system for estimating a parameter selected from the group consisting of a current, a magnetic field, or combinations thereof comprises a resonant frequency tunable magneto-optical loop resonator, wherein the loop resonator comprises a magneto-optical sensing element coupled to an optical waveguide, and wherein the loop resonator is configured for...

20060126994 - Optical module and method of manufacturing the same: An optical module wherein an electrical signal leak from the light-emitting device or the like or a crosstalk between a light-emitting device and a light-receiving device is difficult to occur, even if the light-emitting device or the light-receiving device is arranged close to an optical waveguide or an optical fiber....

20060126993 - Soi-based optical interconnect arrangement: An SOI-based optical interconnection arrangement is provided that significantly reduces the size, complexity and power consumption requires of conventional high density electrical interconnections. In particular, a group of optical modulators and wavelength division multiplexers/demultiplexers are used in association with traditional electrical signal paths to “concentrate” a large number of the...

20060126992 - Wave transmission medium and waveguide circuit: A wave transmission medium includes an input port 3-1 and an output port 3-2. A field distribution 1 and a field distribution 2 are obtained by numerical calculations. The field distribution 1 is a field distribution of the propagation light (forward propagation light) launched into the input port 3-1. The...

20060126995 - Flexible optical waveguides for backplane optical interconnections: A flexible optical connector suitable for use in an optical backplane for interconnecting optical circuit boards, and methods of making the optical connector, are disclosed. The flexible optical connector comprises a plurality of waveguides on two or more levels providing a plurality of light paths that allow light communication between...

20060126996 - Balanced bufferless switch: A high capacity distributed switching system comprises electronic edge nodes connected to a balanced bufferless switch which may be electronic or optical. The balanced bufferless switch comprises a balanced connector and a switch fabric. The balanced connector comprises an array of temporally cyclic rotator units having graduated rotation shifts and...

20060126997 - Bidirectional optical recirculation loop transmitting device: This apparatus of bidirectional optical recirculation loop transmission enables bidirectional transmission system to be tested in the long transmission distance. Unidirectional optical recirculation loop is composed of two optical modulators and one 4-port optical coupler. Bidirectional optical recirculation loop is composed of four optical switches, one 4-port optical coupler and...

20060126998 - Lumped raman amplifier for adaptive dispersion compensation: An adaptive dispersion compensation system that also achieves optical amplification by inducing Raman amplification effects in dispersion compensating fiber. This amplification/chromatic dispersion compensation architecture may be applied, e.g., at the end of an all-optical link, or an intermediate points along the link. By varying the length of dispersion compensating fiber...

20060126999 - Systems, devices, and methods for controlling non-linear optical interactions: An optical communications system, comprising a first node, first dispersion compensation fiber located in the first node, wherein the first dispersion compensation fiber induces dispersion onto optical signals passing through the first dispersion compensation fiber, a second node, a plurality of spans between the first and second nodes, and second...

20060127000 - Optical fiber coupler: A fiber coupler for coupling light into an optical fiber and/or coupling light out of the fiber, has two holder elements, namely a fiber holder for holding the fiber, and a lens holder for holding a focusing lens. The holder elements are adjustable in the axial and transversal direction, respectively....

20060127001 - Dispersion compensation device: The present invention is a dispersion compensation device capable of varying dispersion compensation amount with a simple configuration. The device includes a first mode light conversion section capable of converting input light into light of higher mode, a dispersion compensation section capable of performing dispersion compensation on the higher mode...

20060127002 - Light transfer component: The present invention provides a light transfer component formed from a material that is transparent for light of a predetermined range of wavelengths. The light transfer component comprises a first substantially flat portion, a second rounded portion, and an intermediate portion disposed between the first and the second portion. The...

20060127003 - Optical fiber illuminator, method of fabricating the optical fiber illuminator, and optical recording head and optical recording and reading apparatus having the optical fiber illuminator: Provided is an optical fiber illuminator used for recording and reading high density optical information according to a near field recording (NFR) scheme, a method of fabricating the optical fiber illuminator, and an optical recording head and recording apparatus having the optical fiber illuminator. The optical fiber illuminator includes: an...

20060127005 - Compensating interferometer with bragg reflectors: Methods and apparatus for generating an optical waveform by distributing an input optical waveform among a plurality of environmentally isolated legs wherein each leg comprises a Bragg grating and contributes to the generated optical waveform by using the Bragg grating to reflect back at least a portion of light distributed...

20060127004 - System and method for performing dispersion compensation: An exemplary embodiment of the present invention includes an optical circulator. The circulator may have, for example, a first port, a second port, and a third port. The first port may be configured to introduce light into the optical circulator. The system may also include a tunable fiber filter Bragg...

20060127006 - Tunable demultiplexer and tunable laser with optical deflector: Provided are a tunable demultiplexer and a tunable laser, having an optical deflector in which a refractive index of a core layer of a deflection pattern region having a predetermined shape varies in response to an external electrical signal so that the optical deflector deflects incident light in the radial...

20060127008 - Compensating interferometer including delay lines with reduced noise: Methods and apparatus for reducing noise in optical apparatus comprising a delay line by utilizing a plurality of wavelength specific delay lines to delay an input waveform such as a pulse rather than a single delay line. In a preferred embodiment an apparatus is configured to generate an optical waveform...

20060127007 - Optical filtering device and method: A wavelength selective filter device is presented suitable for use as a part of a laser cavity for processing light output of a gain section of the laser cavity. The filter structure comprises a resonator structure including at least one closed-loop resonator; and defines an optical coupler structure for coupling...

20060127009 - Waveguide turn for a waveguide circuit: A waveguide turn having two waveguides oriented at an angle with respect to one another and optically coupled to one another by a reflective surface. In one embodiment, the reflective surface is a side of a trench formed in the core and cladding regions of the waveguides, which is designed...

20060127010 - Optical fibers or other waveguide having one or more modeled tap structures for forming desired illumination patterns and method of making the same: An apparatus is provided that includes one or more optical fibers or other waveguides for receiving light, and one or more modeled tap structures formed in the one or more optical fibers or waveguides, a desired illumination pattern is created by scattering, reflection and/or refraction of portions of the light...

20060127011 - Optical junction apparatus and methods employing optical power transverse-transfer: An optical apparatus comprises an optical device fabricated on a substrate, an external-transfer optical waveguide fabricated on the substrate and/or on the optical device, and a transmission optical waveguide. The optical device and/or the external-transfer waveguide are adapted for and positioned for transfer of optical power therebetween (end-transfer or transverse-transfer)....

20060127012 - Method and apparatus for a fiber optic housing and aligning device: The present invention discloses an apparatus and method for a fiber optic housing and aligning device. In one embodiment, a fiber optic housing and aligning device is provided. The device includes a housing having an opening in a wall thereof, the wall having a curved surface; a tubular casing comprising...

20060127013 - Telecommunication cable comprising a jointed optical core and method for jointing said core: An optical cable having an optical core with a strength member and optical fibers embedded in a thermoplastic material. The optical core has a joint section having substantially the same diameter as the one of the optical core. The joint section has a jointed strength member and a plurality of...

20060127014 - Low temperature dry loose tube fiber optic cable: A water blocking configuration for a low temperature, dry loose tube fiber optic cable includes one or more flexible buffer tubes each having a passage sized to contain one or more optical fibers. A single yarn is disposed in the passage of each buffer tube, and the yarn has a...

20060127015 - Water-resistant telecommunication cable: A water-resistant telecommunication cable is disclosed comprising a solid and compact element surrounding at least one optical transmitting element, wherein the element is made from a vinyl alcohol/vinyl acetate copolymer having a hydrolysis degree of about 60% to about 95% and a polymerization degree higher than about 2,500; at least...

20060127016 - Fiber optic cables with easy access features: A tubeless fiber optic cable is disclosed, including at least one optical fiber extending in a longitudinal direction, and an outer jacket extending in the longitudinal direction so as to surround the optical fiber. The outer jacket has a cross-section defining an inner surface and an outer surface. At least...

20060127017 - Optical transmission device: An optical transmission device has a light emission element for converting an electrical signal to an optical signal to transmit it to an optical fiber; a lead frame for mounting the light emission element and having a through hole at a position determined with reference to a mounted position of...

20060127018 - Treatment method for optical fiber: A treatment method for an optical fiber including accommodating an optical fiber inside a treatment chamber; introducing a deuterium containing gas into the treatment chamber; and in a deuterium treatment step, exposing the optical fiber to atmosphere of the deuterium containing gas. In the deuterium treatment step, a deuterium concentration...

20060127020 - Apparatus for fabricating optical fiber cable: An apparatus for fabricating a metal coated optical fiber cable is disclosed. The apparatus includes a tape forming unit causing both side edges of a metal strip subjected to traction to abut against each other to form a metal tape, an optical fiber guide unit for guiding an optical fiber...

20060127019 - Optical fiber with thermoplastic material based coating: Optical fiber having a glass portion; at least one protective coating of thermoplastic material having at least one thermoplastic elastomer; the thermoplastic material having the following characteristics: a modulus of elasticity value at +25° C. lower than 150 MPa, preferably at least 10 Mpa, more preferably higher than 20 Mpa,...

20060127023 - Method for manufacturing a light guide plate: A method for manufacturing a light guide plate includes the following steps: (12) providing a photo mask having certain patterns of dots associated therewith; (16) using the photo mask to form an imprinting stamper; and (18) using the imprinting stamper to imprint an original light guide plate, thereby forming a...

20060127021 - Optical waveguide devices and method of making the same: An optical device structure includes a first cladding having a first refractive index, a second cladding having a second refractive index, a core disposed between the first and second claddings, wherein the core has a third refractive index, and wherein the first and second refractive indices are relatively lower than...

20060127022 - Planar optical waveguide and method of fabricating the same: Provided are a planar optical waveguide and a method of fabricating the same which is adapted to a planar optical component and an optical component for use in a optical communication. The planar optical waveguide includes: a lower cladding layer formed on a substrate, a core formed on the lower...

20060127024 - Fabrication of waveguides and bragg gratings with uv-irradiation: A method of simultaneously defining a waveguide and grating in a sample of photosensitive material comprises providing a sample of material (24) having a region which is photosensitive to light of a specific wavelength, generating a spot of light (22) at the specific wavelength, the spot having a periodic intensity...

20060127025 - Cable guide and system for maintaining a desired bend radius: A cable guide and system are disclosed for maintaining a desired bend radius. The cable guide includes two substantially curved tube halves, each tube half comprising a curved portion having a predetermined radius. The cable guide also includes a hinge joining the tube halves and a fastening member configured to...

20060127026 - Fiber access terminal: A fiber access terminal and assembly with an end cap and a housing configured for pulling through a conduit. Within an interior of the terminal and the assembly, an input cable is separated into individual fibers which are inserted within fiber pigtails extending from the housing and terminated at connectors....

20060127027 - Cable management panel with sliding drawer and methods: An optical fiber cable management panel includes drawer assemblies, each including a drawer slidable within a chassis. The drawer assemblies are secured together by a bracket that includes an interlock arrangement with the chassis. Such an interlock arrangement includes a non-threaded stud engaging a hole. Radius limiters may be part...

20060127028 - Service blocker device and method: A device and method of blocking customer access to a fiber optic distribution cable. A service blocker is positioned between a fiber distribution cable and a customer drop cable within a fiber optic adapter. The service blocker includes a body which does not permit optical transmission between the fiber distribution...

20060127029 - Cantilever beam mems variable optical attenuator: An improved cantilever beam optical switch design which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignment of a selected switched position, a single device may be realized that...

20060127030 - Light guide plate and backlight module adopting the same: A light guide plate (120) includes an incidence surfaces (121), an emission surface (123) adjoining the incidence surface, and a bottom surface (122) adjoining the incidence surface and being opposite to the emission surface. The light guide plate further includes a refractive-diffractive hybrid lens array (124) formed on the emission...

20060127031 - Transitions in refractive index using electro-optic polymers: The index of refraction in a length of doped and/or “doped-and-poled” electro-optic polymers is controlled so that a gradual transition from a low Δn to a high Δn, or vice versa, is achieved for use in, for example, a lightguide-to-fiber transition. Multiple methods for creating this gradual transition are disclosed....

20060115195 - Fiber bragg grating device: There is provided a fiber Bragg grating devise comprising an FBG mount that is constituted by sequentially stacking a temperature control plate, a base plate, and a mounting plate, and an SSFBG in which a plurality of FBG units of the same constitution and a plurality of phase modulation portions...

20060115196 - Controllable electro-optic device having substrate trenches between electrodes: An optical modulator which has substantially low loss and has an improvement in voltage reduction is disclosed having an electro-optic lithium niobate substrate. The substrate has first, second and third ridges extending along its surface. Extending along the first and second ridges are first and second waveguides. A first RF...

20060115197 - Optical module: Provided is an optical module including a microstrip line, a traveling wave type optical device positioned in the end of the microstrip line, and at least one balanced open stub connected to the microstrip line for the impedance matching at a specific frequency such as 40 GHz and 60 GHz....

20060115198 - Optical element and optical switch: A core layer of an optical waveguide is grown as a film comprised of an electro-optic material with a rhombohedral structure and grown above a substrate with (100) crystal orientation on a major face....

20060115199 - Measurements of polarization-dependent loss (pdl) and degree of polarization (dop) using optical polarization controllers: Devices and techniques that use a polarization controller and a feedback control to the polarization controller to systematically control the polarization of light output from the polarization controller in measuring the polarization dependent loss (PDL) of an optical device or material that receives the light from the polarization controller or...

20060115205 - Calibration and measurement of temperatures in melts by optical fibers: A method is provided for calibrating measurement signals obtained with optical fibers, wherein a reference material having a known reference temperature is arranged at one end of an optical fiber, the reference material is heated up to at least its reference temperature, the signal received by the fiber when the...

20060115201 - Device for the ir-spectrometric analysis of a solid, liquid or gaseous medium: The invention relates to a device for the IR-spectrometric analysis of a solid, liquid or gaseous medium. The device includes a process probe, which has a reflection element. The device additionally includes a linear variable filter, at least one detector element, and a control/evaluation unit. At least one light source...

20060115204 - Distributed temperature sensing system with remote reference coil: The invention is an optical fiber distributed temperature sensing system comprising an opto-electronic unit and a sensing optical fiber, which system measures temperature so as to provide a temperature profile along at least part of the length of the optical fiber. The system includes reference coils, which are temperature reference...

20060115202 - Fibre optic based semiconductor micro sensors for sensing pressure or temperature, fabrication methods of said sensors, and a method of securing an optical fibre to a silicon block: An optical micro sensor (1) for measuring one or more environmental parameters, such as pressure and temperature, through the modification of incident radiation. The sensor (1) is fabricated using MEMS technology and is adapted to receive an optical fibre (40) which communicates radiation to and from the micro sensor (1)....

20060115200 - Optical splitter with tapered multimode interference waveguide: A 1×2 splitter design having low loss is described. The splitter has a non-adiabatic tapered waveguide (22) connected between a substantially single-mode input waveguide (20) and two output waveguides (24, 26). The non-adiabatic tapered waveguide widens in width towards the output waveguide, and merges substantially continuously with the input waveguide...

20060115203 - System and method to minimize modulation instability: The present invention comprises the use of a fiber in a sensing optical fiber system operated in a region of negative chromatic dispersion to minimize modulation instability thereby enabling the identification and measurement of the information-carrying signals. The present invention may be used in a variety of sensing environments....

20060115207 - Optical module: An optical module 100 comprises a substrate 110 at which V-shaped groove 110a and 110b are formed through etching to extend along directions perpendicular to each other and a cube-type wavelength division multiplexer 150 that allows light to be transmitted or reflected on a 90° angle depending upon the wavelength...

20060115206 - Optoelectronic transmitting and/or receiving arrangement: An optoelectronic transmitting and/or receiving arrangement having: at least one optoelectronic component; an electrical printed circuit board having electrical contact areas for electrical contact-connection of the optoelectronic component; and a coupling arrangement for coupling light between the optoelectronic component and an optical waveguide to be coupled. In this case, the...

20060115209 - Optical switch and optical switch unit: An optical switch has plural incident side optical fibers 4a; plural main emitting side optical fibers 7a respectively arranged so as to be opposed to the respective incident side optical fibers 4a; a single preliminary emitting side optical fiber 7b; a reflection means 5 moved so as to be positioned...

20060115208 - Optical switching apparatus: An optical matrix switch station (1) is shown mounting a plurality of optical switch units (15, 17), each of which includes a mirror (29), moveable in two axes, for purpose of switching light beams from one optical fiber to another. A mirror assembly (41) is formed from a single body...

20060115210 - Ring type optical transmission system and optical apparatus connected to same: In the ring type optical communication system of the present invention, in each OADM arranged on a ring network, an optical signal which has the same wavelength as the add wavelength assigned to a local node, of the optical signals of each wavelength contained in WDM light input from on...

20060115211 - Stopping and time reversing light in a waveguide with an all-optical system: We introduce a new all-optical mechanism that can compress the bandwidth of light pulses to absolute zero, and bring them to a complete stop. The mechanism can be realized in a system consisting of a waveguide side-coupled to tunable resonators, which generates a photonic band structure that represents a classical...

20060115212 - Ultra-slow down and storage of light pulses, and altering of pulse spectrum: Light pulses can be stopped and stored coherently, with an all-optical process that involves an adiabatic and reversible pulse bandwidth compression occurring entirely in the optical domain. Such a process overcomes the fundamental bandwidth-delay constraint in optics, and can generate arbitrarily small group velocities for light pulses with a given...

20060115213 - Lighting device and liquid crystal display device: A backlight (lighting device) is arranged on a backside of a liquid crystal panel, and comprises an LED, an optical waveguide, a reflective sheet, and a prism sheet. A diffractive optical element (DOE) constituted of a binary concave and convex pattern is formed in an end surface of the optical...

20060115214 - Methods for manipulating light extraction from a light guide: In one embodiment, a method of defining an array of extractor elements configured to extract light from a light guide, and thereby produce a desired spatial light pattern ET quantifying optical output at a plurality of locations across the light guide is provided. The method comprises calculating a first spatial...

20060115215 - Dual \"cheese wedge\" silicon taper waveguide: An optical device may include a fiber or waveguide that is intended to be coupled to another waveguide having a significantly larger/smaller cross-sectional size. As such, two wedge shaped waveguides may be positioned atop a tapered waveguide. The dual wedge design may allow for shorter taper lengths and smaller final...

20060115216 - Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides: A method for fabricating optical devices comprises the steps of preparing a first substrate wafer with at least one buried optical waveguide on an approximately flat planar surface of the substrate and a second substrate wafer with at least a second buried optical waveguide. The waveguides so formed may be...

20060115217 - Multi-fiber ferrule and a mold therefor: A ferrule has at least one row of optical fiber openings to hold optical fibers. The ferrule also includes a lead-in portion for each of the optical fiber openings to assist in positioning the optical fibers into the optical fiber openings in the ferrule. The optical fiber openings in the...

20060115218 - Boot for an optical ferrule: A boot for a ferrule is provided that has a body member having a first end and a second end with an opening therethrough. The opening also has a web member extending from the first end to the second end to define at least two channels. The boot may also...

20060115219 - Optical fiber connector: Various exemplary embodiments of an optical fiber connector having a one-piece housing are shown and described. The housing includes a tailpiece which extends rearward from a housing body. The tailpiece provides a location for securing strength members which may be associated with an optical fiber or optical fiber cable attached...

20060115220 - Adjustable tether assembly for fiber optic distribution cable: An adjustable tether assembly for a fiber optic distribution cable includes a tether cable and an overmolded housing secured at the end of the tether cable having at least one connector port. The tether assembly is attached to the distribution cable such that the position of the connector port is...

20060115221 - Braided thermocouple cable bundle: A product consisting of a plurality of thermocouple cables braided or wound and covered with protective armour, thereby forming a braided bundle. The product is used in accordance with a method involving a further step of inserting the braided bundle into a well....

20060115222 - Optical cable having high compression resistance: An optical cable having high compression resistance includes a core, a central strength member, at least one light transmission medium, at least one supporting member, and a first sheath. The core has an opening at its center and at least one slot at its circumference. The central strength member is...

20060115223 - Test apparatus, optical coupler and method of manufacturing same: A test apparatus including an optical coupler for optically coupling a main frame and a test head is provided. The optical coupler has a plurality of optical fiber cables, a cable storage chain for bundling a stored portion except for a non-stored portion in a part of the test head...

20060115224 - Single-mode optical fiber, optical fiber cable, optical fiber cord, and method for ensuring service life of optical fiber: A single-mode optical fiber, cable, cord, and a method for ensuring a service life of the fiber are provided. The fiber has a core and a cladding, the fiber having a cut-off wavelength that exhibits a single-mode transmission in a 1.31 μm wavelength band. A relative refractive index difference of...

20060115225 - Optical fiber unit for air blown installation and manufacturing method thereof: An optical fiber unit for air blown installation includes at least one optical fiber having a core layer and a clad layer, a protective layer coated on the surface of the optical fiber; and protrusions made of polymer resin and formed on the outer circumference of the protective layer in...

20060115226 - Optical modulation element module: An optical modulation element module, in which Mach-Zehnder type optical modulation element 50 having a Mach-Zehnder type waveguide unit having two branched waveguides on a substrate which has electro-optical effect and two modulation electrodes which apply a modulation signal to each branched waveguide, optical input and output units for inputting...

20060115227 - Method of designing thickness of coating film and semiconductor photonic device: A coating film is provided on an end surface of a semiconductor photonic element including an active layer through which light propagates. The coating film has a two-layer structure including a first layer film and a second layer film arranged in a stacked relation. The thicknesses of the first and...

20060115228 - Fiber optic cable fastener: A secure fastener for joining fiber optic cables, is presented. The fastener includes a first segment having a first plurality of grooves to accommodate portions of the fiber optic cables, a first plurality of posts, a first plurality of apertures, and a first raised contoured portion and a second segment...

20060115229 - Apparatus for tightly fixing an optical connector to an optical cable: In a fixing apparatus for fixing an optical connector to an optical cable having an optical fiber and wire members arranged around the optical fiber, the fixing apparatus includes first, second, and third holding members. The first holding member is adapted to be inserted between the wire member and the...

20060115230 - Solid-state imaging device and production method therefor: In a solid-state imaging device including a light-receiving section (1) which performs photoelectric conversion in response to receipt of light and a waveguide (20) composed of a light-transmissive material formed in an insulating film 5 which covers a substrate provided with the light-receiving section (1), in which the waveguide (20)...

20060115231 - Electro-optic device, and method for manufacturing electro-optic element: A method for manufacturing an electro-optic element including: forming a first electrode and a second electrode on a luminescent layer deposited on a substrate; applying current to the luminescent layer through the first electrode and the second electrode; thereby the luminescent layer emits light; wherein a functional liquid including a...