Optical waveguides inventions 08/06

20060193550 - Methods for using resonant waveguide-grating filters and sensors: Methods of detecting one or more parameters of a medium are disclosed. The methods include providing a waveguide grating device, contacting the waveguide grating with a medium, propagating a signal having at least one signal attribute through the waveguide, and comparing the modified signal attribute to a known signal attribute...

20060193553 - Multiple wavelength optical source: A planar optical waveguide is formed having sets of locking diffractive elements and means for routing optical signals. Lasers are positioned to launch signals into the planar waveguide that are successively incident on elements of the locking diffractive element sets, which route fractions of the signals back to the lasers...

20060193551 - Protecting optical coupling between optical ports on opposing electronic components: In an exemplary aspect of the invention, a method is disclosed for protecting optical coupling between optical ports on opposing electronic components. The method comprises the following. First and second electronic components are oriented, where each of the first and second components has a side comprising an optical port, so...

20060193552 - Sensor device: A sensor device for detecting a substance contained in a fluid comprises first and second photonic crystal regions, first and second flow channels, an optical waveguide connected to the first and second photonic crystal regions and an optical detector for detecting the lights transmitted through the first photonic crystal region...

20060193554 - Optical transmission system: An optical transmission system includes a first/second node with a first/second dispersion compensator that performs a first/second dispersion compensation on an optical signal; and a third node that is arranged between the first/second nodes. The amounts of the first/second dispersion compensations are determined so that a cumulative dispersion of the...

20060193555 - Optical rotating data transmission device with coupling slide: A device for transmitting modulated optical signals between a first unit and a second unit, in which the first unit is supported to be rotatable or movable linearly relative to the second unit, comprises a light guide extending along a given track on the first unit, a first light coupler...

20060193556 - Optical communications system: In an optical communications link, an optical system including: at least a first input port for delivering an optical signal travelling in the communications link, the optical signal including a plurality of wavelength channels, the channels being utilized for carrying optical information over an optical data link; a dispersive element...

20060193557 - Optical switches and routers and optical filters: Our invention relates generally to an optical switch (31) and an optical router (10) to rapidly route signals from particular channels (22, 24) within an optical band by using optical switches (20) which utilize a controlled whispering gallery mode (WGM) resonance of dielectric microspheres (S1, S2, S3) to optically switch...

20060193558 - Dispersion compensator, method for manufacturing the same, and method for compensating wavelength dispersion: A dispersion compensator includes at least one first optical waveguide, a first slab waveguide, an arrayed waveguide connected to the at least one first optical waveguide via the first slab waveguide, a second slab waveguide, at least one second optical waveguide connected to the arrayed waveguide via the second slab...

20060193559 - Coupling structure, resonator excitation structure and filter for coplanar-waveguide circuit: A coupling structure for coupling to a circuit portion (6) in a coplanar-waveguide circuit (1) having ground conductors (2, 3) at both sides is disclosed. A signal input/output line (4) is provided at the center of the coplanar-waveguide circuit; and an inductive coupling portion (5) having an end of the...

20060193560 - Coupling structure between a fiber and a planar lightwave circuit (plc) and manufacturing method therefor: A coupling structure between a fiber and a PLC to couple the PLC to the fiber is provided. A substrate includes a PLC region and at least one aligning groove for accommodating the fiber. The PLC region has optical circuits and input/output surfaces of the optical circuits. The input/output surfaces...

20060193561 - Component and method for eccentric alignment of a first and a second pin, which each contain an optical fiber centrally, as well as a module assembly and a plug coupling having such a component: The invention relates to a component and a method for eccentric alignment of a first and a second pin, which each contain an optical fiber centrally, and to a module assembly and a plug coupling having such a component. The component according to the invention has an integral guide element...

20060193563 - Bezel for fiber optic components: A bezel for facilitating the connection between an external device positioned on one side of a communication panel and a module located on the other side of the panel wherein the panel has an opening for receiving the bezel. The bezel includes a housing defining an interior portion of the...

20060193562 - Fiber optic receptacle and plug assembly including alignment sleeve insert: A fiber optic receptacle and plug assembly includes 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...

20060193564 - Connector for optic fibres: The invention is directed to a connector for connecting optic fibres. The connector has a longitudinally extending body. The body has a first end and a second end. The body has a pass-through conduit extending from the first end to the second end. The body is divided into a plurality...

20060193565 - Optical transmission medium connecting method, optical connecting structure, and optical transmission medium connecting part: The present invention provides a connection method for optical transmission media that allows the worker to make the intended connection easily without damaging the optical connection media and in a manner allowing for effective use of space, as well as an optical connection structure formed in accordance with the aforementioned...

20060193566 - Holder for optical fiber ferrule end face grinding apparatus: There is provided a holder for an optical fiber ferrule end face grinding apparatus that can make good use of a grinding film, in which the number of optical fiber ferrules held by the holder is greatly increased. The holder includes a holder plate including a plurality of insertion holes...

20060193567 - Active bulkhead transceiver: The active bulkhead transceiver includes a housing, an insert body, a keying cap, a first ferrule, a second ferrule, a transmitting optical subassembly, a receiving optical subassembly, an electrical connector, a substrate, a cover, and a panel nut. The housing includes seating surface, an aperture, a first thread form, and...

20060193568 - Optical device and method of manufacturing the same, optical device adaptor, and optical component stopper: An optical device includes: a first optical component that has an end face oblique with respect to a plane perpendicular to an optical axis; a second optical component that is optically coupled to the first optical component; and a lens that is placed between the first optical component and the...

20060193571 - Bragg grating elements for optical devices: Fiber optic devices including volume Bragg grating (VBG) elements are disclosed. A fiber optic device may include one or more optical inputs, one or more VBG elements, and one or more optical receivers. Methods for manufacturing VBG elements and for controlling filter response are also disclosed. A VBG chip, and...

20060193569 - Self-healing cable apparatus and methods: Self-healing cable apparatus and methods disclosed. The cable has a central core surrounded by an adaptive cover that can extend over the entire length of the cable or just one or more portions of the cable. The adaptive cover includes a protective layer having an initial damage resistance, and a...

20060193570 - Tube bundle for optical fibres, and method of manufacturing such bundle: A tube assembly (202) for installation of one or more optical fibres is disclosed. The assembly comprises a plurality of elongate flexible first tubes (204) for receiving one or more optical fibres. A first layer (206) is arranged outwardly of the tubes, and a second layer (220) is arranged radially...

20060193572 - Power umbilical for deep water: A Subsea umbilical includes electrically insulated power conductors, fiber optic elements, electrical signal cables, and fillers within a common outer cover. At least one of the electrical signal cables is enclosed within a dedicated metal tube, and the umbilical is hung off on an offshore platform or the like and...

20060193573 - Cross-connect fiber optic cables and associated cross-connect sections: A flexible cross-connect apparatus for cross-connecting fiber optic cables includes a transition strength member, at least one cable clamp assembly, at least one fiber storage device, and a cover for protecting the cross-connect apparatus. The cross-connect apparatus is flexible about a preferential bending plane because the transition strength member includes...

20060193574 - Distribution fiber optic cables having at least one access location and methods of making the same: A method for manufacturing a distribution fiber optic cable is disclosed. The method comprises the steps of providing a plurality of optical fibers for a cable core. Transitioning at least one of the plurality of optical fibers between a first location and a second location, where one of the locations...

20060193575 - Loose tube fiber optic cables having at least one access location: A distribution fiber optic cable including a plurality of optical fibers, a plurality of tubes, at least one filling component, and least one access location, and a cable jacket. Each tube has at least one optical fibers therein, where some of the plurality of tubes are stranded together over at...

20060193576 - Jacket assembly for a cable: A method and apparatus for loading a ribbon cable into a protective jacket. A leader with a first end and a second end is enclosed in the jacket. The second end of the leader is then attached to the cable, while the first end of the leader is used for...

20060193578 - Composite polymeric optical films with co-continuous phases: An optical element is formed by co-extruding to have an arrangement of polymer scattering fibers within a polymer matrix. The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross-section of the polymer matrix to scatter light transversely incident on the...

20060193577 - Reflective polarizers containing polymer fibers: A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface...

20060193579 - Monolithic waveguide arrays: A waveguide array is fabricated by providing a photoreactive material and generating an optical intensity pattern corresponding to a geometry of the waveguide array. A relative translation of the photoreactive material is effected through the optical intensity pattern. Thereafter, the photoreactive material is rendered substantially unreactive to light at at...

20060193581 - Method for the production of an optical fibre, preform, and an optical fibre: A preform for manufacturing an optical fibre or an optical fiber, where the variation in the refractive index contrast of the preform does not exceed an absolute value of 2%, measured for a preform having a length of at least 60 cm, or the deviation of the preform in relation...

20060193580 - Optical communication system: In an optical communication system in which communication is conducted by transmitting light through a plastic optical fiber with a core diameter in the range from 300 to 600 μm, the average beam diameter and beam divergence angle expressed in terms of numerical aperture (NA) of the light at the...

20060193582 - Composite polymer fibers: A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can...

20060193583 - Photonic bandgap fibers: Included among the many structures described herein are photonic bandgap fibers designed to provide a desired dispersion spectrum. Additionally, designs for achieving wide transmission bands and lower transmission loss are also discussed. For example, in some fiber designs, smaller dimensions of high index material in the cladding and large core...

20060193584 - Optical waveguide and method of fabricating the same: An optical waveguide comprises a silica substrate, a buffer layer formed on the silica substrate, cores formed on the buffer layer, and upper cladding layer formed on the buffer layer, covering the cores. The thermal expansion coefficients of the buffer layer and upper cladding layer are set to be substantially...

20060193585 - Radius limiter and arrangement: A cable radius limiter having a radius limiting surface that prevents damage to cables due to excessive bending. The cable radius limiter includes mounting structure and cable retaining structure arranged such that the limiter can be operably oriented and mounted to a mounting bracket in both a first mounting orientation...

20060193586 - Distributor system and method for fibre optic cables: The invention relates to a method and a device for coupling fibre optic cables. Said device comprises at least one module, which is equipped with at least one retaining unit for retaining at least two cassettes. The invention is characterised in that: a cassette is configured with at least one...

20060193588 - Fiber access terminal: A fiber access terminal includes a drop cable side and a distribution cable side. The sides are separated by a frame to which a variety of cable management and cable connection components may be mounted. Optical fibers are routed from drop and distribution cables through a plurality of routing paths...

20060193587 - Fiber optic splice enclosure: A fiber optic splice enclosure for housing an interconnection contained in a splice tray between at least one optical fiber of a feeder cable and at least one optical fiber of a drop cable is provided. The optical fiber of the feeder cable is at least partially contained in a...

20060193589 - Junction box including connectors and surrounding housings: A junction box assembly includes a support board, a connector supported at one end by the support board, a separate tubular guide sleeve arranged concentrically about the connector, and a cover having an open bottom chamber receiving the connector, and a top wall containing an opening receiving the upper ends...

20060193590 - Optical fiber distribution frame with outside plant enclosure: A fiber optic telecommunications frame is provided including panels having front and rear termination locations, the panels positioned on left and right sides of the frame. The frame includes vertical access for the rear cables. The frame further includes left and right vertical cable guides for the front patch cables....

20060193591 - High density optical fiber distribution frame with modules: A fiber optic telecommunications frame is provided including termination modules positioned on left and right sides of the frame. The frame further includes left and right vertical cable guides. The frame includes a horizontal passage linking the left and right panels and the cable guides. The termination modules hold fiber...

20060193592 - Variable optical attenuator: A variable optical attenuator (VOA) device (20; 40; 50; 90) is described that comprises a first optical waveguide (24; 52; 80; 94; 120; 140) and a second optical waveguide (26; 42; 54; 82; 96; 122; 142). A moveable reflective element (28; 84; 106; 124; 144), such as a micro-electro mechanical...

20060193594 - Distribution fiber optic cables having at least one access optical fiber: A distribution fiber optic cable including a plurality of optical fibers, a plurality of tubes, at least one filling component, and least one access location, and a cable jacket. Each tube has at least one optical fibers therein, where some of the plurality of tubes are stranded together over at...

20060193596 - Encapsulated photonic crystal structures: Photonic crystal structures having a plurality of air colunns and coating such structures to provide structures with improved performance are described herein. The coating includes a material that coats an uppermost portion of a photonic crystal structure, wherein the photonic crystal structure comprises a plurality of air columns and wherein...

20060193595 - Organizer: A system for organizing items, comprising: a container for organizing items; and a tag holder on the container, the tag holder capable of holding a label that is visible from the inside and the outside of the container when the container is open, and visible from the outside of the...

20060193593 - Polymeric photonic crystals with co-continuous phases: An optical element is formed by co-extruding to have an arrangement of polymer scattering fibers within a polymer matrix. The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross-section of the polymer matrix to scatter light transversely incident on the...

20060188193 - Optical interferometer device: Describes is an optical interferometer device comprising an input coupler connected to at least one input waveguide, an output coupler connected to at least one output waveguide and a multiplicity of waveguide branches connected between the input coupler and the output coupler, at least two adjacent branches of this multiplicity...

20060188194 - Method and apparatus for variable optical attenuation for an optical switch: A controller in an optical switch providing optical coupling of an optical signal between a source port and a target port employs, in at least one axis, gradient control using a feedback loop that compensates for alignment error between a source port and a target port in an optical switch....

20060188195 - Cooled high power laser lens array: An array of cylindrical end-caps with separate or integral lenses is stacked with its members in close contact, forming inter-cylinder gaps between every subset of three adjacent cylindrical lenses. Conductive fibers are disposed in the inter-cylinder gaps. Heat that would otherwise accumulate in the array is removed through the conductive...

20060188196 - Waveguide design incorporating reflective optics: This invention relates to devices for coupling light between an optical waveguide and an optical element in a manner that is substantially independent of temperature, using reflective optics. Certain embodiments of the invention concern improved designs for the transmit and receive optics of a waveguide-based optical touch screen sensor, incorporating...

20060188197 - Optical branching component with low polarisation sensitivity and increased process tolerance: An optical branching component particularly suitable for use as a tap device is described. The component has two optical waveguides coupled between two optical couplers which each include at least one MMI supporting at least two guided modes. There is an effective optical path length difference between the two waveguides...

20060188198 - Optical power distribution devices: This invention relates to optical splitters, particularly to optical splitters for use in optical touch screens. The present invention provides an optical splitter for distributing light substantially equally from a multimode input waveguide to an array of output waveguides, via a slab region. The distribution of output waveguide widths is...

20060188199 - Directional coupler switch: The directional coupler switch is configured by a parallel waveguide including a first region which is subjected to a nonlinear action and a second region which is not subjected to a nonlinear action. A dispersion relationship of the first region is varied due to the nonlinear action to switch over...

20060188200 - Optical resonator: The invention discloses a semi-ring Fabry-Perot (SRFP) optical resonator structure comprising a medium including an edge forming a reflective facet and a waveguide within the medium, the waveguide having opposing ends formed by the reflective facet. The performance of the SRFP resonator can be further enhanced by including a Mach-Zehnder...

20060188201 - Multi-chip module and method for mounting thereof: A multi-chip module having an optical element sending and receiving optical signals and mounted on a printed circuit board in which an optical guide is formed, includes an optical path-converting member that protrudes from a face of the multi-chip module that is to be connected to the printed circuit board,...

20060188202 - Fiber optic booster connector: An apparatus includes a housing, a first connection interface and an optical amplifier. The housing receives a fiber optic line and an electrical line. The first connection interface is located at least partially inside the housing and is exposed outside of the housing to couple the fiber optic line and...

20060188203 - Optical fiber protective tube: An optical fiber protective tube is designed for the passage of an optical fiber element (having a primary coating of an ultraviolet-curable (UV-curable) resin or the like formed on an outer periphery of a bare fiber) therethrough so as to protect the optical fiber element. The optical fiber protective tube...

20060188204 - Method and apparatus for reducing feedback within an optical waveguide: An optical waveguide device is disclosed herein and includes a core having a first index of refraction and configured to propagate at least one optical signal therethrough, the core having a first end and a second end, wherein at least one of the first end and the second end forms...

20060188205 - Optical transmission line: Provided is an optical transmission line in which the suppression of SBS and the achievement of other transmission characteristics can compatibly be attained. The optical transmission line is formed by connecting a first optical fiber and a second optical fiber, or by connecting a group of first optical fibers and...

20060188206 - Optical fibers with improved resistance to ingressing molecules: An optical fiber includes a glass fiber having a glass core and a cladding that contains voids that are spaced apart from the core, in contact with the core, or form a substantial portion of the core. The voids act as trapping sites for ingressing molecules from the surrounding environment,...

20060188207 - Planar lightwave circuit with an optical protection layer and integrated optical circuit using the same: A planar lightwave circuit having a core, a clad stacked on the core covering the core to confine light within the core, and an optical protection layer stacked on the clad covers the clad is disclosed. The clad has a lower refractive index than the core. The optical protection layer...

20060188208 - Optical connector field termination oven and kit: An apparatus for a termination oven for attaching optical connectors to fiber optic cables in the field. The termination oven includes an oven with a heater and a temperature sensor. A controller manages power applied to the heater. The termination oven includes a portable power supply and has provision for...

20060188210 - Fiber optic furcation device including expansion chamber: An optical fiber device with an optical fiber extending from a first outer jacket through a fiber receiving device from a first outer jacket to a second outer jacket. The first outer jacket is anchored to a side of a housing of the fiber receiving device and the second outer...

20060188209 - Optical fiber cable distribution frame: A telecommunication distribution frames comprising a switch connected to an optical fibre of an incoming cable, terminated at a primary flexibility suite, via a secondary flexibility suite, where the primary and secondary flexibility suites include means for routing joined blown fibre tubes within the installation. A continuous blown fibre unit...

20060188211 - Optical component and optical module: An optical component is disclosed, which comprises a waveguide groove, having: a waveguide holding plane having a surface shape extending along a specific axial direction and capable of holding at least one optical waveguide while positioning it at at least a part of at least one side face thereof; and...

20060188213 - High energy fiber terminations and methods: A ferrule and method are presented that fuses optical fibers, capillaries and the like to ferrules while reducing deformation of the fused component and the ferrule and minimizing stresses within the assembly. Reduced deformation and stress is accomplished by providing high contact angles in a symmetrical, short section of fusion...

20060188212 - Optical terminator: The disclosure relates to an optical terminator device suitable for terminating high energy optical signals. The device includes a heat sink cap having an internal surface. An optical absorbing layer is positioned on the internal surface of the heat sink cap. A scattering core having a fiber or waveguide connection...

20060182381 - Foil display with increased brightness using a retro reflector: A foil display device has a passive plate (4) and a light guide (2) and a flexible foil (3) arranged between them. The foil (3) can selectively be brought into contact with the light guide (2) to decouple light from the light guide (2). Reflecting means (6) are located on...

20060182383 - Compact fiber optic geometry for a counter-chirp fmcw coherent laser radar: This disclosure presents a non-contact precision optical device, including methods for measuring distances to an arbitrary target and various configuration geometries, for using polarization maintaining (PM) optical fiber components in a polarization diplexing scheme to construct a version of a dual chirp coherent laser radar that is immune to environmental...

20060182382 - Optical reader system and method that uses non-coherent illumination and angular filtering to interrogate a label independent biosensor: An optical reader system and method are described herein that directs a non-coherent light towards a biosensor, collects the non-coherent light which is reflected (or transmitted) from (or through) the biosensor, and then angularly filters the collected non-coherent light to obtain a narrow spectral response which can be analyzed to...

20060182385 - Method of fabricating multi-layered printed circuit board for optical waveguides: Disclosed is a method of fabricating a multi-layered PCB, in which the optical waveguide component is inserted into the PCB in such a way that a prepreg adhesive does not block an optical signal entrance of the optical waveguide. The method comprises pre-routing a portion of an adhesive meeting the...

20060182384 - Optical amplifier: Optical circuits for optical amplifier input and output stages are described. The input stage circuit (42) comprises a first optical waveguide (46) for carrying a signal beam to be amplified, a second optical waveguide (62) for carrying a pump beam, a beam combining means (58) optically coupled to the first...

20060182386 - Transmission line to waveguide interconnect and method of forming same: An MMIC chip is disclosed that includes a planar substrate having a first surface and a second surface, a conductive layer having an opening on the first surface, a transmission line on the second surface, at least one conductor extending from the conductive layer to the second surface defining a...

20060182387 - Wavelength selective optical switch: A wavelength selective optical switch particularly usable as a programmable N×M optical switch in a multi-wavelength communication system. The switch uses a grating that separates multi-channel optical signals into a plurality of optical channels, and combines a plurality of optical channels into multi-channel optical signals. Programmable mirrors switch each optical...

20060182388 - High bit rate optical communication over multimode fibers: An optical communication system includes a transmitter that receives an input optical signal from an optical source and performs filtering so that an output signal from the transmitter includes a specific set of fiber modes that are allowed to pass for further processing. A receiver receives the output signal and...

20060182390 - Configurations and methods for manufacturing optical devices using an athermal platform: The present invention discloses an improved optical device having at least a first and second optical components. The optical device further includes a first extending tube securely attached to the first and second optical components as a first building block wherein the first and second optical components are aligned and...

20060182389 - Display device comprising a light transmitting first plate and light-absorbing means: The display device (1) comprises a light transmitting first plate (2), a second plate (4) facing the first plate (2), a movable element (3) between the first plate (2) and the second plate (4) able to decouple light out of the first plate (2). The first plate (2) has a...

20060182392 - Device for tailoring the chromatic dispersion of a light signal: A device for tailoring the chromatic dispersion of a multi-channel light signal is proposed. The device includes at least two waveguides coupled in a cascade, each provided with a spatially distributed optical filter. The group delay response of the filters is designed so that the group delay of each channel...

20060182391 - High dispersion diffraction grating including multiple holographic optical elements: A diffraction grating having multiple holographic optical elements (HOEs), including a Dickson grating and at least one other volume phase grating (VPG). In typical embodiments, the multi-HOE grating is implemented to provide high dispersion, at least substantially uniform diffraction efficiency and at least substantially equal diffraction efficiencies for all polarizations...

20060182393 - System for confined optical power delivery and enhanced optical transmission efficiency: A system for confined optical power delivery and enhanced optical transmission efficiency includes a waveguide defining an aperture, a focusing element, and a coupling layer positioned between the waveguide and the focusing element. The waveguide may be, for example, in the form of a ridge waveguide. The focusing element is...

20060182394 - Spot-size transformer, method of producing spot-size transformer and waveguide-embedded optical circuit using spot-size transformer: The present invention is to provide a spot-size transformer which can transform the beam spot-size in a waveguide separated by a groove and a waveguide-embedded optical circuit using the spot-size transformer. The spot-size transformer according to the present invention comprises a first optical waveguide having a first core and a...

20060182395 - Measuring the position of passively aligned optical components: Optical components may be precisely positioned in three dimensions with respect to one another. A bonder which has the ability to precisely position the components in two dimensions can be utilized. The components may be equipped with contacts at different heights so that as the components come together in a...

20060182396 - Optical connector excellent in assemblability and dimensional accuracy: In an optical connector for use in connecting an optical fiber, a housing defines an optical axis extending in a predetermined direction. For positioning the optical fiber along the optical axis, a ferrule is accommodated in the housing to be movable in the predetermined direction. The housing further accommodates a...

20060182397 - Method and apparatus for providing optoelectronic communication with an electric device: An optoelectronic assembly for an electronic system includes a thermally conductive, metallized transparent substrate having a first surface and an opposite second surface. A support chip set is bonded to the second surface of the transparent substrate. A first substrate is in communication with the transparent substrate via the metallized...

20060182398 - Fiber optic cable for use in harsh environments: Fiber optic cables suitable for use in harsh environments such as down hole oil and gas well applications and methods for fabricating the same have been provided. In one embodiment, an optic cable suitable for down hole oil field applications comprises one or more optical fibers disposed in an inner...

20060182401 - Liquid crystal materials and electrooptic devices with a liquid crystal-containing cladding: Broadly, then, one aspect of the present invention is a functional optical material composed of a liquid crystal (LC) evidencing a pair of refractive indices (RI's) and a polymer in which the LC is dispersed. The refractive index (RI) of said polymer may be outside of the L C RI's...

20060182400 - Optical waveguide device: An optical waveguide device has: photonic crystal regions 305, each having holes 304 arranged in a periodic array; and an optical waveguide 302. Within the waveguide 302, high refractive index portions 303 are arranged along the waveguiding direction. Each of the high refractive index portions 303 is generally interposed between...

20060182399 - System and method for low loss waveguide bends: In one embodiment, there is disclosed a waveguide medium using total internal reflection to create a relatively sharp (approximately 90°) bend for optical signals traversing the waveguide. A discontinuity of the medium (such as air) is used to create a turning mirror within the waveguide path. By curving the discontinuity,...

20060182403 - High reflector tunable stress coating, such as for a mems mirror: An optical device having a high reflector tunable stress coating includes a micro-electromechanical system (MEMS) platform, a mirror disposed on the MEMS platform, and a multiple layer coating disposed on the mirror. The multiple layer coating includes a layer of silver (Ag), a layer of silicon dioxide (SiO2) deposited on...

20060182404 - High reflector tunable stress coating, such as for a mems mirror: An optical device having a high reflector tunable stress coating includes a micro-electromechanical system (MEMS) platform, a mirror disposed on the MEMS platform, and a multiple layer coating disposed on the mirror. The multiple layer coating includes a layer of silver (Ag), a layer of silicon dioxide (SiO2) deposited on...

20060182402 - Multiple-core planar optical waveguides and methods of fabrication and use thereof: A multiple-core optical waveguide comprises: a substrate; lower and upper waveguide core layers; a waveguide core between the upper and lower waveguide core layers; upper and lower cladding; and middle cladding between the upper and lower waveguide core layers substantially surrounding the waveguide core. Each of the lower, middle, and...

20060182405 - Preventing damage to optical components from optical time domain reflectometers: There is provided in a telecommunications network comprising an optical fiber cable, and an optical component connected to a first point of the optical fiber cable, with an optical time domain reflectometer (OTDR) connected to a second point of the optical fiber cable so that it can emit OTDR signals...

20060182406 - Large capacity automatic distributor, particularly for optic fibres; device and method for automatic connection/disconnection of the binding fibres within the distributor: An optical fiber distribution frame including a first cross-connection panel (B1) and a second cross-connection panel (B2) facing each other, and a first support (7) in each panel for connection modules (12) thereof. Each module on the first panel is adapted to be connected to one end of an optical...

20060182407 - Patch cord management system: A slack loop manager is mountable to a network rack having a left side and a right side. The slack loop manager includes a first plurality of slack spools angled from the left side to the right side of the rack, and a second plurality of slack spools angled from...

20060182408 - Optical fibre sealing assembly: An assembly for sealingly enclosing a space into which one or more optical fibres and/or optical cables is or are fed includes a container defining the space and a sealing member. The container has an opening therein. The sealing member sealingly encloses the one or more optical fibres and/or optical...

20060182409 - Optical films of differing refractive indices: An optical layer includes a first optical film having a first index of refraction (n1) and a second optical film having a second index of refraction (n2). The first index of refraction and the second index of refraction are not the same, and a plurality of optical features is disposed...

20060177170 - Method for tuning a fiber optic component: A tunable fiber optic component providing environmental isolation, thermal tuning, and mechanical tuning and a method of tuning a fiber optic component using application of substantially simultaneous varying of temperature and mechanical strain is disclosed. A method of using a tunable fiber optic component, for example, a distributed feedback fiber...

20060177171 - Tension-controlled fiber optic tuning and isolating device: A tunable fiber optic component providing environmental isolation, thermal tuning, and mechanical tuning and a method of tuning a fiber optic component using application of substantially simultaneous varying of temperature and mechanical strain is disclosed. A method of using a tunable fiber optic component, for example, a distributed feedback fiber...

20060177172 - Optical rotating data transmission device with an unobstructed diameter: A device for transmitting modulated optical signals between a first unit and a second unit, in which the first unit is supported to be rotatable relative to the second unit, comprises a light guide along a circular track on the first unit, a first light coupler for coupling light into...

20060177174 - Integrated multichannel laser driver and photodetector receiver: An integrated circuit cast on a single die having a plurality of receivers in a receiver region, a plurality of transmitters in a transmitter region, and a spatial separation region having a plurality of n-type and p-type subregions disposed on the single die to separate the transmitter region from the...

20060177173 - Vertical stacking of multiple integrated circuits including soi-based optical components: A vertical stack of integrated circuits includes at least one CMOS electronic integrated circuit (IC), an SOI-based opto-electronic integrated circuit structure, and an optical input/output coupling element. A plurality of metalized vias may be formed through the thickness of the stack so that electrical connections can be made between each...

20060177175 - Apparatus and methods for using fiber optic arrays in optical communication systems: Systems and methods for optical communication that may be employed to couple together fiber optic arrays of two or more optical communication modules using parallel fiber optic connectors and physically distinct and signal-independent optical communication paths. The disclosed systems and methods may be employed to provide separate signal-independent communication paths...

20060177176 - Method and system for communication on optical fiber using mechanical modulation: An optical communication system includes a first network component and a second network component, an optical fiber link carrying a primary optical communication channel between the first network component and the second network component, and an electrically actuated force generator positioned on the optical fiber link for non-invasively providing an...

20060177177 - Optical wavelength division multiplexer/demultiplexer device: An optical wavelength division multiplexer/demultiplexer device is described that comprises a substrate having a plurality of wavelength selecting filters. The filters are arranged to provide conversion between a combined beam comprising a plurality of wavelength channels and a plurality of separate beams each comprising a subset of said plurality of...

20060177178 - Amplitude and phase control in distributed optical structures: A distributed optical structure comprises a set of diffractive elements. Individual diffractive element transfer functions collectively yield an overall transfer function between entrance and exit ports. Diffractive elements are defined relative to virtual contours and include diffracting region(s) altered to diffract, reflect, and/or scatter incident optical fields (altered index, surface,...

20060177179 - Diffractive grating member and optical communication module: The present invention relates to a diffractive grating member and to an optical communication module. The optical communication module includes a semiconductor laser;.a coupling optical system for coupling a light flux with a wavelength of λ1 emitted by the semiconductor laser to an optical fiber; and two light-receiving elements for...

20060177180 - Multichannel array waveguide diffraction grating multiplexer/demultiplexer and method of connecting array waveguide and output waveguide: An array waveguide diffraction grating optical multiplexer/demultiplexer having an input waveguide, an input side slab waveguide, an output side slab waveguide, an output waveguide, an array waveguide provided between the input side slab waveguide and output side slab waveguide having a length different sequentially between the adjacent waveguides, wherein the...

20060177181 - High optical fiber count connector: In one embodiment of the present invention, a connector assembly comprises a body member and a ferrule, disposed therein, and a low profile resilient member, configured to provide a reduced axial dimension when maintained in a compressed state, that biases the ferrule in a direction of a front opening of...

20060177182 - Optical fiber connector component and optical fiber connector using the same: An optical fiber connector component having a cylindrical light guide member (32) made of a transparent and elastic material, and a pipe (31) for housing the light guide member in the interior, wherein end surfaces (301) and (302) for connecting the light guide member with optical fibers are either convex...

20060177184 - Coupler assembly for an optical backplane system: A coupler assembly for an optical backplane system having a backplane and two or more circuit packs connected to that backplane. Each circuit pack has an optical transceiver and the backplane has an optical pipe (e.g., an array of waveguides) adapted to guide optical signals between the transceivers of different...

20060177183 - Termination for optic fiber: A terminal element for fiber optic communication has an elongated body defining a body axis and having a first end from which an optical fiber extends along the body axis. The body has a second end with an angled surface offset at an angle from the body axis. The fiber...

20060177186 - Apparatus and method for on-line binder laylength measurement and adjustment: A method and apparatus for determining and adjusting binder laylength during the process of manufacturing a selected fiber optic cable design. Specifically, a binder, having a distinguishing and physically detectable feature, is wrapped around fiber optic bundles or a buffer tube. A detection system detects the unique feature associated with...

20060177185 - Three color digital gobo system: A system of digitally controlling light output by producing separate control signals for different colors of light. The light is contained in an optical waveguide, either prior to shaping or after shaping. Each of the control signals is coupled to a digitally controlled device which controls the shape of the...

20060177187 - Birefringent photonic bandgap optical waveguide: A birefringent elongate waveguide for guiding light, comprises: a core region (110), comprising an elongate region of relatively low refractive index; and a cladding region (100), comprising elongate regions (105) of relatively low refractive index interspersed with elongate regions (117,120) of relatively high refractive index. In a transverse cross-section of...

20060177188 - Optical waveguide and method of manufacturing the same: Some of the embodiments of this invention provide optical waveguides which achieve high use efficiency of core material and which are inexpensive. Some other embodiments of the invention provide methods of manufacturing such optical waveguides. An method of manufacturing an optical waveguide, according to the invention, comprises a step of...

20060177189 - Core detaching tool for optical fiber cable and method of detaching optical fiber cores from optical fiber cable: A core detaching tool for an optical fiber cable detaches one or more optical fiber tape units accommodated in a sheath of the optical fiber cable by tearing the sheath. The core detaching tool for an optical fiber cable is provided with a pair of cable holding parts, and a...

20060177190 - Fiber optic splitter: A splitter includes an optical splitter arrangement positioned with the interior of a housing. An input cable enters the housing. At least one boot protrudes outwardly from an end wall of the splitter housing. At least two output cables exit from the housing through the boot. First ends of the...

20060177191 - Terminator by tapering fiber optic: A Terminator by Tapering Fiber Optic (herein after named TermTaper) made directly using a single mode optical fiber to reduce the back reflection in an installed optical fiber link, which occurs when a guided incident optical signal encounters an index of refraction change at a glass-air transition. The single mode...

20060177193 - Led bulb: An LED light source has a housing with a hollow projecting core. The core is arrayed about a longitudinal axis. A printed circuit board closes an open end of the housing at a core end and has LEDs operatively fixed about the center thereof. A light guide with a wall...

20060177192 - Method and apparatus for negotiating power between power sourcing equipment and powerable devices: The present invention provides a power negotiation protocol that enables PDs and PSEs to negotiate the amount of inline power that a PD consumes and the corresponding PSE provides. This power negotiation allows the PDs provide fine-grained power consumption level to PSEs, and the PSEs are able to manage inline...

20060171626 - Monolithic optical transmitter and receiver apparatus incorporating hollow waveguides: A transmitter apparatus (2) is described that comprises one or more lasers (4), modulation means (10) to intensity modulate radiation output by each of said one or more lasers (4), and output means for outputting the modulated radiation produced by the modulation means into, for example, an optical fibre (22)....

20060171627 - Optical device and method for producing the same: An optical device includes an optical waveguide, an optical element, and a resin layer disposed between the optical waveguide and the optical element. The resin layer is formed of a photocurable material alone or in combination with a thermosetting material and includes an optical interconnect for optically connecting the optical...

20060171628 - Mems element and method of producing the same, and diffraction type mems element: The present invention provides a MEMS device in which a warp that is deformation of a beam is reduced and which aims to improve the characteristic thereof, a method for manufacturing the MEMS device and a diffraction-type MEMS device. The MEMS device of the present invention includes a substrate-side electrode...

20060171629 - Method for removing cross-talk in wavelength division multiplexed passive optical network: Disclosed is a method for removing cross-talk in a wavelength division multiplexed passive optical network (WDM-PON). The WDM-PON and the method remove cross-talk between adjacent wavelength channels due to incomplete alignment of wavelength channels in a MUX/de-MUX between a central office and a remote node in the WDM-PON employing light-injected...

20060171630 - Optical multiplexer/demultiplexer and manufacturing method thereof: An optical multiplexer/demultiplexer and a manufacturing method thereof are disclosed, wherein a core is arranged on each side of a filter element, and the light is caused to enter the filter element from one of the cores without using a collimator lens. The loss of the transmitted light is reduced...

20060171631 - Fiber stub for cladding mode coupling reduction: Fiber stub interface for reducing cladding mode light. The fiber stub can be implemented in an optical transmission device. The optical transmission device can be a transceiver that also includes an optical signal receiver. The fiber stub includes an optical fiber and a ferrule. The optical fiber includes both a...

20060171632 - Light pipe assembly: A light pipe assembly providing a light pipe that has at least one transmission region, at least one light source that is optically connected to the transmission region, and an modifying element. The modifying element creates the appearance of even light distribution throughout the length of the light pipe. Thus,...

20060171633 - Highly stable broadband light source and suitable stabilization method therefor: A highly stable broadband light source includes a semiconductor light source having a specific emission spectrum, an optical filter having a specific bandpass filtering function and a predetermined bandwidth and a coupling element, to which the light emissions of the semiconductor light source and of the optical filter are fed....

20060171634 - Method of dividing a guided electromagnetic signal into two half-power signals using photonic crystals: The invention relates to a method of dividing the power of an input electromagnetic signal into two equal-power signals with a relative phase difference of 180° between them and an equal propagation delay. The inventive method makes use of a photonic crystal coupler comprising two parallel guides which are disposed...

20060171636 - Apparatus and method for combining light from two or more fibers into a single fiber: An apparatus and method for combining light signals carried on a plurality of input fibers onto a single receiving fiber with a high degree of efficiency. The apparatus broadly comprises the receiving fiber and a plurality of input fiber-lens assemblies, with each fiber lens assembly including an input fiber; a...

20060171635 - Waveguide and optical coupling device: A waveguide including transmission areas which transmit an input optical signal. A coupling area is provided between the transmission areas and has a width narrower than a width of the transmission areas so that at least part of the optical signal transmitted through the transmission areas is branched to a...

20060171637 - Radiation absorption in electro-optical devices: Electro-optical apparatus includes a housing having at least one electrical subassembly (ESA) and at least one optical subassembly (OSA) therein as well as cavities within the housing and paths for transmitting electrical signals between the electrical and optical subassemblies. A glob top material is applied on at least a part...

20060171639 - Indexed optical fiber connector: A high-performance connector for optical fibers includes a cylindrical ceramic or metallic ferrule installed in a structure. This structure is positioned in a non-plastic (metallic system) base member to form a fiber holder. This overall generally cylindrical structure includes a small passageway along its central axis for holding an optical...

20060171638 - Optical fiber connector assembly: An optical fiber connector includes a connector housing having first and second generally parallel, spaced apart first and second faces and at least one generally cylindrical receptacle for removably receiving an optical fiber terminus therein. An optical fiber terminus is located within the receptacle and includes an elongated body with...

20060171640 - Optical fiber terminus assembly: An optical fiber terminus includes an elongated body with a passage along a central axis for receiving a portion of an optical fiber cable therethrough and an indexing section. A ferrule is secured to the body and has an end portion of said optical fiber cable therein. A collar is...

20060171641 - Mems based handheld fiber optic connector cleaner: A Micro-Electro-Mechanical System (MEMS) and double-layer nozzle based high efficiency, lightweight, low cost, compact, portable fiber-optic connector cleaning apparatus useful for various fiber optic communications applications such as fiber optic cable plant maintenance. The double-layer nozzle design enables the delivery of compressed, filtered air and solvent to connector surfaces. A...

20060171642 - Optical module, method of manufacturing the optical module, and data communication system including the optical module: An optical module includes a fiber array, a laser diode array and a photodiode array. The fiber array has optical fibers which are divided to a transmitter group and a receiver group. The laser diode array has laser diodes which are grouped in a transmitter group. The photodiode array has...

20060171643 - Method of determining heating amount, method of fusion splicing, and fusion splicer: A method of determining a heating amount adequate for fusion splicing is provided. In the method, the melting state of the end portions of optical fibers can be monitored on a real time basis so that fewer tests need to be performed. A method of fusion splicing and a fusion...

20060171644 - Optical fiber cable: An optical fiber cable comprises optical fiber tapes, each of which is composed of a plurality of optical fiber cores disposed in parallel and connected by a joint member, and two or more pieces of the optical fiber tapes are layered and accommodated in a sheath. The optical fiber tape...

20060171645 - Optical fiber cable: An optical fiber cable in which an optical fiber tape unit can be taken out easily from a sheath is disclosed. An optical fiber cable having a substantially rectangular cross section has one or more optical fiber tape units, a sheath for accommodating the optical fiber tape units, the sheath...

20060171647 - Enhancing fiber-optic sensing technique using a dual-core fiber: An optical fiber for use in fiber optic sensing of a test sample includes a first core and a second core. The second core is generally coaxially disposed within the first core and is sized smaller than the first core. The second core is capable of delivering pulsed laser energy...

20060171646 - Large diameter optical waveguide, grating and laser: A large diameter optical waveguide, grating, and laser includes a waveguide 10 having at least one core 12 surrounded by a cladding 14, the core propagating light in substantially a few transverse spatial modes; and having an outer waveguide dimension d2 of said waveguide being greater than about 0.3 mm....

20060171648 - Optical fiber: An optical fiber not only can suppress SBS but also can be produced easily. The optical fiber 1 comprises an optical core region 10 including the center axis and an optical cladding region 14 surrounding the optical core region 10. The optical core region 10 is composed of a first...

20060171649 - Wavelength monitoring and stabilization in wavelength division multiplexed systems: Systems and methods for monitoring wavelength in wavelength division multiplexed systems. A thin film filter is used with a pair of photodiodes to monitor the emitted wavelength of a laser. The thin film filter is configured to both reflect and transmit light equally at a particular wavelength of interest. The...

20060171650 - Integrated optic devices and photosensitive sol-gel process for producing integrated optic devices: A photosensitive sol-gel film containing an organometallic photosensitizer is deposited on the oxide containing surface layer of a silicon substrate. A pattern of white or ultra violet light incident to the photosensitive sol-gel film results in the unbinding of the photosensitizer from the exposed regions of the sol-gel film. A...

20060171651 - Cable slack manager system and method: A cable slack management system is used in conjunction with a conventional component rack to secure cables of excess length to minimize disturbance, interference, and general clutter that the excess cable length would otherwise cause. In one implementation, the cable slack management system includes a slack management panel that is...

20060171652 - Fiber optic racksaver: A series of racksaver components can be used to contain and protect runs of fiber optic cables and/or jumpers. Racksaver components can interconnect with pre-established and dedicated fiber ironwork racking and fiber raceway/fiber guide with no need for additional raceway/fiber guide, eliminating the need for additional supports, bracing, and ironwork...

20060171654 - Integrated planar microfluidic bioanalytical systems: A system and method for performing rapid, automated and high peak capacity separations of complex protein mixtures through the combination of fluidic and electrical elements on an integrated circuit, utilizing planar thin-film micromachining for both fluidic and electrical components....

20060171653 - Multi step ebeam process for modifying dielectric materials: According to one embodiment of the invention, a method of modifying a mechanical, physical and/or electrical property of a dielectric layer comprises exposing the dielectric layer to a first dose of electron beam radiation at a first energy level; and thereafter, exposing the dielectric layer to a second dose of...

20060171655 - Optical pickup and optical disk apparatus incorporating the same: An optical pickup is so constructed as to have an LD (Laser Diode), an LD plate for fixing the LD, and a base to which the LD and the LD plate are mounted, and a heat dissipation plate made of sheet metal is provided so as to be kept in...

20060171656 - Processing method of polymer crystal, processing system of polymer crystal, and observation system of polymer crystal: The ultraviolet short-pulse laser light emitted from the ultraviolet short-pulse laser light source 1 is focused on and caused to irradiate a macromolecular crystal 8 contained in a sample container 6 via a shutter 2, intensity adjusting element 3, irradiation position control mechanism 4, and focusing optical system 5. The...