Optical waveguides inventions 04/09

20090110342 - Silicon modulator offset tuning arrangement: A silicon-based optical modulator structure includes one or more separate localized heating elements for changing the refractive index of an associated portion of the structure and thereby providing corrective adjustments to address unwanted variations in device performance. Heating is provided by thermo-optic devices such as, for example, silicon-based resistors, silicide... Agent: Wendy W. Koba, Esq.

20090110343 - Method for modulating refractive indices of optical fiber gratings: The present invention proposes a method for modulating refractive indices of optical fiber gratings, wherein the UV exposure on a least one assigned location of an optical fiber grating is divided into to two UV shots, and the intensities or phases of the two UV shots, which expose the location... Agent: Birch Stewart Kolasch & Birch

20090110344 - Symmetric optical circuit with integrated polarization rotator: The present invention is directed to an on-chip symmetric optical circuit having one or more integrally fabricated polarization rotators forming a monolithic, solid state polarization independent symmetric circuit. The symmetric optical circuit has at least one integrally fabricated rotator positioned in a plane of symmetry of at least one optical... Agent: Infinera Corporation

20090110346 - Diffusion and laser photoelectrically coupled integrated circuit signal line: A diffusion and laser photoelectrically coupled integrated circuit signal line, wherein photoelectrically coupled pairs are formed on integrated circuit chips utilizing a diffusion light or a laser light emitted by LED or the photoelectrically coupled pairs are arranged in an array to form photoelectrically coupled matrixes on the chips are... Agent: Rabin & Berdo, PC

20090110345 - Methods for passive micrometer-range alignment of components using removable reference structures: A method for passive alignment of adapters, enabling high-precision connection between components on a rigid or flexible substrate as part of a printed circuit board (PCB) is provided. Removable alignment structures are positioned in an alignment area on a PCB, where the alignment structures are in accordance with a patterned... Agent: Cantor Colburn LLP-ibm Yorktown

20090110348 - Magnetically activated photonic switches and switch fabrics employing the same: Various embodiments of the present invention are directed to photonic switches and switch fabrics employing the photonic switches. In one embodiment of the present invention, a photonic switch comprises a first waveguide disposed on a surface of a substrate in proximity to an opening in the substrate, and a second... Agent: Hewlett Packard Company

20090110347 - Optical assembly for repetitive coupling and uncoupling: There is provided an optical assembly (100) comprising an optical fiber arrangement (220, 230) and a lens arrangement (120). The lens arrangement (120) is spatially disposed relative to the fiber arrangement (220, 230) so as to be capable of providing an axial substantially collimated beam of radiation in response to... Agent: Harness, Dickey & Pierce, P.L.C

20090110349 - Beam steering element and associated methods for mixed manifold fiberoptic switches: An optical system comprising two or more mixed optical switches co-packaged together, each set configured either with N input fiber ports and 1 output fiber port (N×1 optical switch) or with 1 input fiber port and N output fiber ports (1×N optical switch), wherein at least a first array of... Agent: Myers & Kaplan Intellectual Property Law, L.L.C.

20090110350 - Optical cable module: An optical cable module has an optical waveguide formed by surrounding a core with a clad layer and a light-receiving/emitting element, installed on a supporting substrate. A light-releasing face of the optical waveguide or a light-incident face to the optical waveguide is aligned so as to face a light-receiving face... Agent: Osha Liang L.L.P.

20090110351 - Wave energy transmission apparatus for high-temperature environments: A wave energy transmission apparatus has a conduit made from a refractory oxide. A transparent, refractory ceramic window is coupled to the conduit. Wave energy passing through the window enters the conduit.... Agent: National Aeronautics And Space Administration Langley Research Center

20090110352 - Electronic device having optical data connection of movable housing parts: The present invention provides an electronic device comprising two or more housing parts which are movable in relation to each other with an optical arrangement enabling optical data communication between electronic components located in the housing parts. The device according to the invention comprises a first housing part comprising first... Agent: Alston & Bird LLP

20090110353 - Method of producing an optical connecting component, and optical connecting component: A positioning projection 58 disposed on a second slide core 56 for positioning a core pin 54 disposed on a first slide core 55 is fitted in a positioning hole 34 disposed in a lead frame 30. The lead frame 30 is disposed in the vicinity of a lead pattern... Agent: Mcdermott Will & Emery LLP

20090110354 - Glass-based micropositioning systems and methods: A method of forming a microbump for micropositioning an optical element comprises providing a base substrate, providing a first optical element to be supported by the base substrate, and providing an alignment element capable of locally expanding when locally heated and adapted to support the first optical element from the... Agent: Corning Incorporated

20090110355 - Strain-managed optical waveguide assemblies and methods of forming same: The strain-managed optical waveguide assemblies of the present invention utilize a large-mode-area (LMA) optical fiber that is annealed in a first bending such that the fiber in that configuration has substantially no axial strain. A fiber support member is then used to support the annealed LMA optical fiber in a... Agent: Corning Incorporated

20090110356 - Methods and apparatuses for waveguiding luminescence generated in a scattering medium: The present invention is directed to a luminescent waveguide device, and methods of making thereof, that may be used to convert solar energy into electricity. In particular, the present invention relates to extracting and waveguiding luminescence generated in a scattering medium so as to improve luminescent concentrator performance. By stacking... Agent: Blank Rome LLP

20090110357 - Fiber wrap design and method: A fiber wrap and a method of rotating the fiber wrap without twisting a data cable are disclosed. The fiber wrap includes a sun gear, a sun cylinder coupled to the sun gear, a planetary gear in contact with the sun gear, a planetary cylinder coupled to the planetary gear,... Agent: James Remenick Novak Druce & Quigg, LLP

20090110359 - Low profile fiber distribution hub: Certain embodiments of a fiber distribution hub include a swing frame pivotally mounted within an enclosure having a low profile. For example, the enclosure can have a depth of less than about nine inches. Termination modules can be mounted to the swing frame and oriented to slide at least partially... Agent: Merchant & Gould PC

20090110358 - Methods and devices for the installation of the fiber optic cable to a house or other building structure: Methods and devices for the installation of a fiber optic cable to a house or other building structure are provided. The method may include identifying a preferred location of a customer through an indication left by the customer either on the interior side or exterior side of a wall, forming... Agent: Verizon Patent Management Group

20090110361 - Optical termination unit: An optical termination unit is provided for allowing an optical cable to be easily projected straight in any of five directions, including upward, downward, rightward, leftward, and rearward directions, thereby enhancing the efficiency of cable laying or the like. An end securing box 150 of the optical termination unit 100... Agent: Mcginn Intellectual Property Law Group, PLLC

20090110360 - Splice tray holder: A splice tray holder includes a body with a first portion, a second portion, and a front surface. A retention portion is disposed on an outer periphery of each of the first and second portions and defines a receiving groove having an inner surface that faces toward the front surface... Agent: Merchant & Gould PC

20090103850 - Silicon-based optical modulator for analog applications: A silicon-insulator-silicon capacitive (SISCAP) optical modulator is configured to provide analog operation for applications which previously required the use of relatively large, power-consuming and expensive lithium niobate devices. An MZI-based SISCAP modulator (preferably a balanced arrangement with a SISCAP device on each arm) is responsive to an incoming high frequency... Agent: Wendy W. Koba, Esq.

20090103852 - Analyzing element and analyzing apparatus using same: An analyzing element (10) is provided with a sample chamber (11) into which a gas or liquid sample is introduced; detection light waveguides (12a, 12b) arranged adjacent to the sample chamber (11) for guiding detection light for detecting a sample; and a detection light inputting section (13) for inputting the... Agent: Amin, Turocy & Calvin, LLP

20090103851 - Surface plasmon resonance fiber sensor: A Surface Plasmon Resonance (SPR) fiber sensor is disclosed, which comprises an optical fiber member and a plurality of optical fiber sensing units. Each of the plurality of the optical fiber sensing units comprises a cladding layer, a core layer, and a groove, and the plurality of the optical fiber... Agent: Lowe Hauptman Ham & Berner, LLP

20090103853 - Interactive surface optical system: A device capable of obtaining information about objects both in contact with a surface and near to, but not in contact with, a surface of the device. The information may include position relative to the surface, pressure when in contact with the surface, shape of the object or objects, and... Agent: Tyler Daniel

20090103859 - Fiber-based electric device: A fiber-based electric apparatus includes an elongate, flexible fiber core. The apparatus also includes an electric device layered on the fiber core.... Agent: Harness, Dickey & Pierce, P.L.C

20090103856 - Optical reception and transmission module: An optical waveguide film of an optical reception and transmission module guides light. A first optical path converting part of an optical transmission unit guides light. A mirror surface of a first optical path converting part bends light which is emitted from a light emitting element and which enters the... Agent: Sughrue Mion, PLLC

20090103857 - Optical reception and transmission module: An optical transmission unit of an optical reception and transmission module holds a first end portion of the optical waveguide film on the first holding member so that light emitted from the light emitting device is coupled to an incident end surface of the optical waveguide. An optical reception unit... Agent: Sughrue Mion, PLLC

20090103858 - Optical waveguide film, method for manufacturing the same, and optical transmission and reception module: An optical waveguide film includes an optical waveguide film main body having an optical waveguide core through which light is propagated, and a cladding portion that encloses the optical waveguide core and has a lower refractive index than that of the optical waveguide core; and an electric wiring layer formed... Agent: Sughrue Mion, PLLC

20090103854 - Photonic interconnects for computer system devices: Various embodiments of the present invention are directed to photonic interconnects that can be used for on-chip as well as off-chip communications between computer system components. In one embodiment of the present invention, a photonic interconnect comprises a plurality of on-chip waveguides. Additionally, the photonic interconnect may include a plurality... Agent: Hewlett Packard Company

20090103860 - Printed circuit board and manufacturing method thereof: A printed circuit board is disclosed. A printed circuit board, which includes a first board part, a flexible board part which has one side coupled with the first board part and which includes an electrical wiring layer and an optical waveguide to transmit both electrical signals and optical signals, and... Agent: Staas & Halsey LLP

20090103855 - Three-dimensional die stacks with inter-device and intra-device optical interconnect: Examples of a computer system packaged in a three-dimensional stack of dies are described. The package includes an electrical die and an optical die coupled to and stacked with the electrical die. The electrical die includes circuitry to process and communicate electrical signals, and the optical die includes structures to... Agent: Hewlett Packard Company

20090103861 - Beam steering element and associated methods for manifold fiberoptic switches: An optical system comprising two or more optical switches co-packaged together comprising discrete sets of input fiber ports (N per set) and an output fiber port (1 per set), and wherein λn from said set of multiple input fiber ports (N) is focused on λn mirror via the use of... Agent: Myers & Kaplan Intellectual Property Law, L.L.C.

20090103863 - Multi-channel ring-resonator based wavelength-division-multiplexing optical device: Provided is a wavelength-division-multiplexing (WDM) device. The device includes an input waveguide, a plurality of ring resonators around the input waveguide, a plurality of output waveguides around the plurality of ring resonators, respectively, and at least one tuning clad pattern adjacent to at least one of the ring resonators, the... Agent: Ampacc Law Group

20090103864 - Optical transmission line holding member, optical module and mounting method thereof: An optical transmission line holding member includes a main body that mechanically positions and holds an optical transmission line, and an electrical interconnection used to mount an optical element. The main body includes a holding hole which opens in one surface of the main body and is used to mechanically... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090103862 - Waveguide system with diffracting structure: An optical waveguide system includes an optical element, a three-dimensional diffracting structure positioned around the optical element, and a waveguide. The optical element and the diffracting structure are at least partially enclosed by the waveguide.... Agent: Hewlett Packard Company

20090103865 - Method and device for optical fiber connection: A device for coupling an optical fiber includes: a first surface and a second surface, including respective active surface portions; at least one optical fiber positioning element adapted to position at least one point of an optical fiber on a longitudinally median plane of the second surface. The first and... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090103866 - Optical assembly and method of making same: An optical assembly includes a first transparent substrate having first and second surfaces, a second transparent substrate having substantially parallel third and fourth surfaces, a reflective portion on the second transparent substrate, a plurality of filters between the first substrate and the reflective portion, the plurality of filters filtering light... Agent: Digital Optics Corporation

20090103867 - Variable optical attenuator: A compact variable optical attenuator having optical-tap functionality is described comprising a planar waveguide attenuator, a lens, and a photodetector. Input and output waveguides are located close to the optical axis of the lens, which reduces optical aberrations and insertion loss. The waveguide attenuator works by light absorption with virtually... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20090103868 - Optical waveguide module: An optical waveguide bare module (11) is composed of an optical waveguide substrate wherein a circuit is formed on a substrate; and optical fiber arrays (22a, 22b) connected on the both sides of the optical waveguide substrate. The optical waveguide bare module (11) is stored in a case (12). The... Agent: Osha Liang L.L.P.

20090103869 - Connecting device, connecting system, optical waveguide and connecting method: There is provided a connecting system including a connecting apparatus that includes (i) a signal transfer path that transfers one of an electrical signal and an optical signal and (ii) a connecting device that connects the signal transfer path to a connection target component in such a manner that a... Agent: Jianq Chyun Intellectual Property Office

20090103870 - Fiber optic splice: A splicing method and splicing kit are suitable for creating a multimode mechanical splice. The splice may be used, for example, in Aircraft Battle Damage Repair operations. The splice utilizes two cylindrical inner crimp sleeves and an outer crimping assembly. The inner crimp sleeves are placed over prepared fiber cable... Agent: At&t Corp.

20090103871 - 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... Agent: Merchant & Gould PC

20090103872 - Method of making assemblies of multi-fiber with irregular hexagonal array: A method of making a multi-fiber assembly with irregular hexagonal array, which includes the steps of forming a plurality of primitives each made of a plurality of fibers, said fibers having cylindrical outer surfaces of same diameter and being arranged in an irregular hexagonal array, said irregular hexagonal array having... Agent: Leong C Lei

20090103874 - Optical fiber, a fiber laser, a fiber amplifier and articles comprising such elements: m

20090103873 - Optical waveguide and method for manufacturing the same: An optical waveguide includes a layer A and a plurality of cores enclosed in a cladding. During production of the optical waveguide, a layered film including alternate layers of a core layer and a cladding layer is cut so as to form a groove that penetrates through the layered film... Agent: Sughrue Mion, PLLC

20090103875 - Optical waveguide and method for manufacturing the same: An optical waveguide includes: a center layer including at least two core layers whose edges are on substantially the same plane, and a first cladding layer provided between adjacent core layers; and a second cladding layer provided at least on both of front and rear surfaces of the center layer.... Agent: Sughrue Mion, PLLC

20090103876 - Cable sleeve for the structured storage and handling of optical waveguides guided in optical waveguide cables: A cable sleeve for the structured storage and handling of optical waveguides guided in optical waveguide cables is disclosed. The cable sleeve comprises a covering body, which defines an interior. The cable sleeve also comprises a sealing body comprising two dimensionally stable end pieces and a compressible gel element arranged... Agent: Corning Incorporated

20090103877 - Cable sleeve for the structured storage and handling of optical waveguides guided in optical waveguide cables: A cable sleeve for the structured storage and handling of optical waveguides guided in optical waveguide cables is disclosed. The cable sleeve comprises a covering body defining an interior. A sealing body comprising two dimensionally stable end pieces and a compressible gel element arranged between the end pieces is adapted... Agent: Corning Incorporated

20090103879 - Fiber distribution hub: A fiber distribution system includes one or more fiber distribution hubs (FDHs) that provide interface at a splice panel and/or a termination panel between incoming fibers routed from a central office and outgoing fibers routed to network subscribers. Splice trays, termination modules, splitter modules, and storage modules can be incrementally... Agent: Merchant & Gould PC

20090103880 - Wall mount chassis: A wall mount chassis includes circuitry for telecommunications signals. The chassis includes a rear wall mountable to a vertical wall, and first and second sides. Each side includes a hinged cover. Each cover includes an access window for viewing an opposite side of the cover. On one side of the... Agent: Joseph E. Lee Merchant & Goudld P. C.

20090103878 - Wavelength division multiplexing module: A telecommunications assembly includes a chassis and a plurality of optical wavelength division multiplexer/demultiplexer modules mounted within the chassis. Each module includes at least one fiber optic connector. Within an interior of the chassis are positioned at least one fiber optic adapter. Inserting the modules through an opening of the... Agent: Merchant & Gould PC

20090103882 - Attaching optical fibers to actuator tubes with beads acting as spacers and adhesives: A scanning fiber device of one aspect may include an actuator tube. An optical fiber may be inserted through the actuator tube. The optical fiber may have a free end portion outside of the actuator tube. A first bead may be around the optical fiber. At least part of the... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090103881 - Fiber optic cable clamp: A fiber optic cable clamp is provided. The fiber optic cable clamp includes a sheath grip member and a strength member clamp maintained at a constant axial location with respect to the sheath grip member. The fiber optic cable clamp also includes a cable fiber separator connected to the sheath... Agent: Merchant & Gould PC

20090103883 - Optical attenuator: In an optical attenuator, there are a first optical waveguide 3A connected to an input optical waveguide 1, a second optical waveguide 3B connected to an output optical waveguide 2 and a connecting optical waveguide 4, which are connected with each other in series. A first recess 13A and a... Agent: Greenblum & Bernstein, P.L.C

20090103884 - Method for producing rewritable photonic devices: Method for the creation of a rewritable photonic device inserted in a photonic crystal (2) having a plurality of cavities (6); this method comprises the operation of injecting selectively a micro-quantity of a liquid (12) into predetermined cavities (6) so as to allow the introduction of permitted states within the... Agent: Cook Alex Ltd

20090097795 - Optical modulation device: Light having components of frequencies f0, f+1 and f−1 outputted from an optical modulator (10) is monitored, a second light detection means (14b) measures the power P2 of all the components, and a first light detection means (14a) measures the power P1 with frequency f0 component cut out by a... Agent: Merchant & Gould PC

20090097796 - Fiber-optic current sensor with sum detection: To measure a sum of electrical currents in different conductors, light is led in an optical sensing fiber around all the conductors. The sensing fiber can be wound around the conductors in a single loop or in several individual loops. Interspersed polarization maintaining fibers and retarders can be used to... Agent: St. Onge Steward Johnston & Reens, LLC

20090097797 - Methods to reconfigure all-fiber optical cross-connects: This invention discloses methods to reconfigure highly scalable and modular automated optical cross connect switch devices comprised of large numbers of densely packed fiber strands suspended within a common volume. In particular, methods enabling programmable interconnection of large numbers of optical fibers (100's-1000's) are provided, whereby a two-dimensional input array... Agent: Anthony S. Kewitsch

20090097798 - Plasmonic high-speed devices for enhancing the performance of microelectronic devices: Various embodiments of the present invention are directed to photonic devices that can be used to collect and convert incident ER into surface plasmons that can be used to enhance the operation of microelectronic devices. In one embodiment of the present invention, a photonic device comprises a dielectric layer having... Agent: Hewlett Packard Company

20090097799 - Optical connector: An optical connector that is capable of ensuring excellent waterproofing using a simple structure is provided. The optical connector comprises a connector plug and socket. Each of the plug and socket have a housing, which has a cable-guiding part and a cable-retaining part; a ferrule disposed within the housing and... Agent: GlobalIPCounselors, LLP

20090097800 - Multi-fiber ferrules for making physical contact and method of determining same: A multi-fiber ferrule and optical fibers therein make easier contact with other multi-fiber ferrules and connectors with a small fiber tip radius and a modulus of elasticity. A method for qualifying multi-fiber ferrules (and connectors) is also disclosed.... Agent: Michael L. Leetzow, Esq. Michael L. Leetzow, P.A.

20090097801 - Optical ferrule and manufacturing method thereof: An optical ferrule includes a positioning block and a ferrule main body. The ferrule main body is integrally formed by molding a resin over the positioning block. The positioning block includes an optical fiber insertion hole formation portion having optical fiber insertion holes and guide pin hole formation portions which... Agent: Sughrue Mion, PLLC

20090097802 - Optical module and method for making the same: The optical module includes a ferrule having a fiber holding hole, a flexible printed circuit (FPC) board provided to one end of the ferrule, an optoelectric device connected to an electric circuit of the FPC board, and a built-in fiber held in the fiber holding hole in a state in... Agent: GlobalIPCounselors, LLP

20090097803 - Board to board optical interconnect using an optical interconnect assembly: An optical interconnect assembly provides board to board interconnect in an electronic system. The optical interconnect assembly can include a plurality of optical fibers, having a connector disposed at the first ends, and a rigid optical mount disposed at the second ends. The rigid optical mount holds the optical fibers... Agent: Hewlett Packard Company

20090097804 - Optical subassembly of optical semiconductor device module and assembly method thereof: The present invention provides an optical subassembly and the assembly method thereof. The optical subassembly includes a first base, an optical fiber module, a first optical semiconductor device module, and a second optical semiconductor device module. The optical fiber module includes an optical fiber. The first optical semiconductor device module... Agent: Reed Smith LLP

20090097805 - Thermal sensing fiber devices: There is provided a thermal sensing fiber including a semiconducting element having a fiber length and characterized by a bandgap energy corresponding to a selected operational temperature range for the fiber in which there can be produced a change in thermally-excited electronic charge carrier population in the semiconducting element in... Agent: Theresa A Lober T.a. Lober Patent Services

20090097806 - Modular imaging system, modules for this system and method implemented using this system: An imaging device includes an illumination module comprising at least one emitter for emitting at least one excitation beam; a scanning and injection module comprising an image guide, a proximal end and a distal end of which are linked by a plurality of optical fibers; a scanning and injection optical... Agent: Osha - Liang LLP

20090097807 - Shaping a laser beam with a fiber-based device: A fiber-based device and associated method effectively convert a laser beam with an initial intensity distribution of Gaussian shape into a beam with another intensity distribution, which might typically be uniform or ring-shaped although other configurations are possible. The device comprises a single mode fiber with a core in which... Agent: Mirek A. Waraksa

20090097809 - Ferroelectric all-polymer hollow bragg fibers for terahertz guidance: A method for fabricating a terahertz waveguide comprises forming a multilayer reflector formed of alternating layers of first and second polymer materials with distinct refractive indices, and defining with the multilayer reflector a hollow core through which terahertz radiation propagates. The corresponding terahertz waveguide comprises the multilayer reflector formed of... Agent: Bcf LLP

20090097808 - Fluid waveguide and uses thereof: The invention relates to methods and apparatuses for guiding and emitting electromagnetic radiation from a fluid waveguide. Various methods for changing optical properties (e.g., refractive index, absorption, and fluorescence) and/or physical properties (e.g., magnetic susceptibility, electrical conductivity, and temperature) of either the waveguide core or the cladding, or both, are... Agent: Wolf Greenfield & Sacks, P.C.

20090097810 - Holey fiber: A holey fiber, which has a zero-dispersion wavelength of less than 700 nm and operates as single mode under its zero-dispersion wavelength, is provided. The holey fiber according to the present invention comprises a core region that is formed at a center of the holey fiber; and a cladding region,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090097811 - Photonic crystal and method of fabrication: A method is disclosed for forming a photonic crystal in a homogeneous layer of material. The method enables the fabrication of 1D, 2D, or 3D photonic crystals. Photonic crystals in accordance with embodiments of the present invention exhibit low temperature sensitivity and low device curvature. In some embodiments, photonic crystals... Agent: Demont & Breyer, LLC

20090097812 - Optical waveguide device and fabricating method thereof: Optical waveguide device has waveguide strip-shaped in the depth direction of the drawing and protruding from peripheral portion. A core (not illustrated) is disposed inside waveguide. Wall to be cut is integrated with waveguide to form one core layer. No unevenness occurs in a cutting line of wall indicated with... Agent: Foley And Lardner LLP Suite 500

20090097813 - Modular optical fiber cassettes and fiber management methods: The present invention provides modular cassettes for fiber management applications. Cassettes in accordance with the present invention comprise plural functional components that nest into a main housing portion to support various application and fiber types. In accordance with the present invention, such components can be added or removed depending on... Agent: Kagan Binder, PLLC

20090092350 - Resonator-assisted control of radio-frequency response in an optical modulator: In one embodiment, an optical modulator has a Mach-Zehnder interferometer (MZI) and an optical resonator coupled, via a tunable optical coupler, to one of the MZI internal arms. The optical resonator induces in the MZI frequency-dependent optical losses characterized by a comb of spectral resonances. The coupling strength between the... Agent: Mendelsohn & Associates, P.C.

20090092351 - High density fiber optic acoustic array: A method for optimizing the architecture of a linear sensor array using WDM-TDM technology and stabilizing the reflectivity spectral profile of the fiber Bragg gratings of the sensors against the influence of environmental factors such as pressure and temperature is provided. The method includes stripping a portion of the foamed... Agent: Fulwider Patton LLP

20090092352 - Optical fiber strain sensor: An optical fiber strain sensor, a method of fabricating the same, and a method of sensing strain. The method of strain sensing comprises providing an optical fiber having a fiber Bragg grating (FBG) formed therein; subjecting the optical fiber to a strain inducing force such that a grating period in... Agent: Mcdermott Will & Emery LLP

20090092353 - Method of making circuitized substrate with internal optical pathway: A circuitized substrate (e.g., PCB) including an internal optical pathway as part thereof such that the substrate is capable of transmitting and/or receiving both electrical and optical signals. The substrate includes an angular reflector on one of the cladding layers such that optical signals passing through the optical core will... Agent: Mark Levy Hinman, Howard & Kattell, LLP

20090092355 - Optical devices with multiple wafers containing planar optical wavequides: A method for fabricating an optical device wherein the device comprises 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... Agent: Ms. Lauren Brighton At&t Corp.

20090092354 - Receiver photonic integrated circuit (rxpic) chip utilizing compact wavelength selective decombiners: A monolithic receiver photonic integrated circuit (RxPIC) chip includes a plurality of optical signal channels together with other active elements integrated on a semiconductor chip, which chips further include a wavelength selective decombiner comprising a supergrating or an Echelle grating which provides for a more compact chip compared to an... Agent: Infinera Corporation

20090092356 - Fabrication method of optical interconnection component and optical interconnection component itself: An optical fiber holder 7 which directs an angulated groove 6 in which an optical fiber 4 is disposed to a substrate 2 and overlays the angulated groove 6 on the substrate 2 may be formed first. Next, a guide 8 which guides the optical fiber holder 7 to the... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20090092357 - Optical module: An optical module comprises: an optical element array comprising plural optical elements that emits or receives light; and an optical waveguide comprising a clad and plural cores respectively with optical path changing portions, the cores being disposed in the clad with an interval. The optical path changing portions are optically... Agent: Sughrue-265550

20090092358 - Light input/output terminal module of the optical components and beam converting apparatus: A light input/output terminal module 100 comprises a jacket tube 110 and a flange 120. A glass portion 20 of the optical fiber is inserted in the center portion thereof. To efficiently remove the leaked light in a cladding 22 to the jacket tube 110, the jacket tube 110 is... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090092359 - Side-firing laser: An apparatus for transmitting laser light and redirecting the light laterally relative to an axis of the apparatus includes an optical fiber having both a core and a cladding surrounding the core. The optical fiber terminates at a distal tip having a surface inclined relative to the axis of the... Agent: Merchant & Gould PC

20090092360 - Small form factor, field-installable optical fiber connector: An optical fiber connector includes a connector housing, a ferrule and a clamping assembly. The connector hosing has a front end and a rear end. The ferrule is disposed in the connector housing and projects from the front end of the connector housing. The clamping assembly is disposed in the... Agent: Lowe Hauptman Ham & Berner, LLP

20090092362 - Optical module providing a sleeve burying a tubular member: An optical module with a sleeve assembly is disclosed. The sleeve assembly, which receives a ferrule secured in an end of the optical connector and is primarily made of resin material, provides a buried member made of a material, typically meal, having a polygonal cross section, a linear thermal expansion... Agent: Venable LLP

20090092361 - Optical receptacle having an electrically isolating ring for electrically isolating the signal ground and the chassis ground in an optical transceiver module: A receptacle is provided that is suitable for use in smaller and larger format transceivers and that eliminates problems associated with electrically isolating the signal ground and chassis ground from each other. The receptacle is identical in shape to the receptacle currently used in the transceiver module, but the portion... Agent: Kathy Manke Avago Technologies Limited

20090092363 - Method and device for generating a structure-free fiberscopic picture: An image free from interfering structures may be generated by means of a fiber bundle of several optical fibers, when for the system of fiber bundle and sensor imaging parameters are provided, which describe the geometrical characteristics of the intensity course generated by each individual optical fiber on the sensor.... Agent: Schoppe, Zimmermann , Stockeler & Zinkler C/o Keating & Bennett, LLP

20090092364 - Reducing distortion in scanning fiber devices: Methods of reducing distortion in scanning fiber devices are disclosed. In one aspect, a method includes changing an intensity of light transmitted through a cantilevered optical fiber of a scanning fiber device. The method also includes changing a setpoint temperature for the scanning fiber device based at least in part... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090092365 - Low bending loss multimode fiber transmission system: A bend-loss tolerant multimode fiber transmission system is provided. The system includes: a transmission fiber having a core and a cladding, and a mode-launching system for selectively exciting only a useful portion of the transmission modes, that portion corresponding to high effective refractive indices relative to a refractive index of... Agent: Merchant & Gould

20090092366 - Planar illuminating device: Provided is a planar lighting device having a thin shape and capable of emitting uniform illumination light with less brightness unevenness. The planar lighting device includes a first and a second light sources arranged at a given distance apart from each other and a light guide plate arranged between the... Agent: Sughrue Mion, PLLC

20090092367 - Process of making a semiconductor optical lens and a semiconductor optical lens fabricated thereby: A semiconductor substrate with anode pattern is anodized to be shaped into an optical lens. The anodization utilizes an electrolytic solution which etches out oxidized portion as soon as it is formed as a result of the anodization, to thereby develop a porous layer in a pattern in match with... Agent: Edwards Angell Palmer & Dodge LLP

20090092368 - Method for fabricating three-dimensional photonic crystal: At least one exemplary embodiment is directed to a method for fabricating a three-dimensional photonic crystal. In the method for fabricating the three-dimensional photonic crystal, a plurality of layers can be defined as one unit, and the total thickness of the one unit can be controlled such that an average... Agent: Canon U.s.a. Inc. Intellectual Property Division

20090087132 - Electro-photonic modulators: Various embodiments of the present invention are directed to modulators that can be operated electronically and used to modulate electromagnetic radiation. In one embodiment of the present invention, a modulator comprises a slot waveguide having a top semiconductor layer, a bottom semiconductor layer, and a transmission layer sandwiched between the... Agent: Hewlett Packard Company

20090087133 - Devices and methods for spatial filtering: Methods and devices for polarizing light in a proton exchange polarizer where cross-coupling of unwanted modes of light is reduced with an integrated spatial filter. An optically transmissive substrate such as a substrate created from LiNbO3 or LiTaO3 has side surfaces, which reflect unguided TM mode light. The light originates... Agent: Honeywell International Inc. Patent Services Ab-2b

20090087136 - Fibre optic sensor package: A fibre-optic sensor package (10) comprises a serial array of fibre-optic sensing coils (14, 16, 18, 20, 22) each of which is comprised in a respective fibre-optic sensor. Four (14, 16, 18, 22) of the coils are housed in a protective casing (24). One of the coils (22) is comprised... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20090087135 - Impact-sensing thermal insulation system and missile incorporating same: An impact-sensing, thermal insulation system includes a light source; an optical detector; and an optically-transmissive insulation optically coupled with the light source and the optical detector, the optically-transmissive insulation being operably associated with an outer surface of a pressure vessel. A missile includes a body; a propulsion system including a... Agent: Law Offices Of James E. Walton, PLLC

20090087134 - Method and system for optical distance and angle measurement: A contactless precision, optical distance and angle measurement method and system optically measuring the position of a moveable object, the bending of the object, the torque applied to the object and the object's rotational velocity. The present invention includes a plurality of sectioned fiber optic placed around and adjacent to... Agent: Honeywell International Inc.

20090087139 - Photonic guiding device: A photonic guiding device and methods of making and using are disclosed. The photonic guiding device comprises a large core hollow waveguide configured to interconnect electronic circuitry on a circuit board. A reflective coating covers an interior of the hollow waveguide to provide a high reflectivity to enable light to... Agent: Hewlett Packard Company

20090087137 - Planar lightwave circuits with air filled trenches: An air filled trench is formed underneath the waveguide to reduce propagation loss, which in turn allowing the waveguide to be in the close proximity of on-chip devices, such as a photodetector. The air filled trench is formed from the back side of the substrate; hence it would not disturb... Agent: My The Doan

20090087138 - Thermal control of optical components: A linearized thermal and optical model of an optical integrated circuit can be used to temperature-stabilize one or more optical elements of the circuit using active temperature regulation. To stabilize a single optical element, a temperature sensor and a heater can be provided proximate to the grating. Thermal and optical... Agent: Amin, Turocy & Calvin, LLP

20090087140 - Attenuated optical splitter module: A compact optical splitter module is disclosed. One type of compact optical splitter module is a planar attenuated splitter module that includes a branching waveguide network having j≧1 50:50 splitters that form up to n≦2j output waveguides having associated n output ports, wherein only m<n output ports are suitable for... Agent: Corning Incorporated

20090087141 - Optical coupler: An optical coupler including: a substrate; a cladding layer formed on the substrate; and a slab waveguide formed on the cladding layer, wherein the slab waveguide comprises a first waveguide area on which a laser beam is incident and a second waveguide area having an incident surface capable of converging... Agent: Mcdermott Will & Emery LLP

20090087142 - Semiconductor laser module and light scanning device and image forming apparatus using the same: An angle β between a principal ray of incident light incident on an optical fiber via a lens system and a marginal ray of reflected light nearest to the principal ray of the incident light when the reflected light is the incident light reflected on an entrance end surface of... Agent: Crowell & Moring LLP Intellectual Property Group

20090087143 - Method of manufacturing laterally graded porous silicon optical filter through diffusion-limited etching and filter structure manufactured thereby: Disclosed herein is a method of manufacturing a laterally graded porous silicon optical filter through diffusion-limited etching. The change in resonance frequency of the porous silicon layer in a taper axis direction is adjusted using the diffusion of reactive ions in an etchant under conditions of use of a related... Agent: Sughrue Mion, PLLC

20090087144 - Optical coupling device: An optical coupling device for coupling an optical signal propagating in an optical fiber or space to an optical waveguide includes a lower cladding layer formed on a substrate, an optical waveguide formed on the lower cladding layer such that the tip of the optical waveguide points to an end... Agent: Charles N.j. Ruggiero, Esq. Ohlandt, Greeley, Ruggiero & Perle, L.L.P.

20090087146 - Method for assembling a two substrate parallel optical sub-assembly: There is provided an optical assembly and a method for assembling components of the optical assembly, the method comprising: providing a structure for guiding light; providing a plurality of optical fibers embedded in a fixed arrangement in the structure, the optical fibers for coupling the light from a coupling surface... Agent: Ogilvy Renault LLP

20090087145 - Two substrate parallel optical sub-assembly: There is provided an optical assembly and a method for assembling components of the optical assembly, the method comprising: providing a structure for guiding light; providing a plurality of optical fibers embedded in a fixed arrangement in the structure, the optical fibers for coupling the light from a coupling surface... Agent: Ogilvy Renault LLP

20090087147 - Strain-relief assemblies and methods for a field-installable fiber optic connector: A strain-relief assembly for a field-installable fiber optic connector is disclosed, wherein the assembly includes a ferrule holder, an intermediate sleeve, and a crimp sleeve. The ferrule holder back section holds a buffered section of a fiber optic cable, while the ferrule holder front end holds a ferrule and a... Agent: Corning Incorporated

20090087148 - Optical fiber cables: An optical fiber cable suitable for drop cable applications has a dual jacket, dual reinforcement layers, a round cross section, and a tight buffered construction. The optical fiber cable is a compact unitary coupled fiber assembly that has a small profile, and is light in weight, while still sufficiently robust... Agent: Law Office Of Peter V.d. Wilde

20090087149 - Medical light source and method: The present invention provides an apparatus and method for securing a light guide to a light source. The light guide has an end termination having a predetermined size and the light source has an opening with an axis for receiving the end termination. The opening is adaptable to receive and... Agent: Gene Warzecha Linvatec Corporation

20090087150 - Index-matching gel for nanostructure optical fibers and mechanical splice assembly and connector using same: A polymer based index-matching gel for use with nanostructure optical fibers is disclosed. The index-matching gel has a viscosity η at 25° C. of 3 Pa-s≦η≦100 Pa-s, which prevents the index-matching gel from wicking into the voids and down the nanostructure optical fiber to a depth where the fiber performance... Agent: Corning Incorporated

20090087151 - Index-matching gel for nanostructure optical fibers and mechanical splice assembly and connector using same: A polymer based index-matching gel for use with nanostructure optical fibers is disclosed. The index-matching gel has at least one polymer component having a viscosity η at 25° C. of 3 Pa-s≦η≦100 Pa-s, which prevents the index-matching gel from wicking into the voids and down the nanostructure optical fiber to... Agent: Corning Incorporated

20090087152 - Optical cable, arrangement for connecting a multiplicity of optical waveguides, and method for manufacturing an optical cable: An optical cable which occupies little space and is highly flexible irrespective of the bending direction has a cable sheath and one and only one core, which is surrounded by the cable sheath. The one and only one core contains a plurality of optical waveguides. The optical cable and the... Agent: Corning Cable Systems C/o Corning Incorporated

20090087154 - Optical fiber cables: Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides... Agent: Law Office Of Peter V.d. Wilde

20090087153 - Optical fiber microcable with multilayer protective sheath: Disclosed is a central loose tube fiber optic microcable that includes a protective sheath enclosing a plurality of optical fibers. The microcable protective sheath is composed of two layers of different synthetic materials, namely an inner layer having an elasticity modulus of about 1500-3000 MPa and an outer layer having... Agent: Summa, Additon & Ashe, P.A.

20090087156 - Optical device with channel waveguide structure and method of fabricating: The present invention prefers to an optical device with a channel waveguide structure as well as a method of fabrication. A thin waveguide layer (2) of a fluoride glass, in particular a Zirkonium fluoride glass, especially ZBLAN, is applied on a substrate (1) and structured to form waveguide channels (7)... Agent: Philips Intellectual Property & Standards

20090087155 - Planar lightwave circuit, manufacturing method thereof, and light waveguide device: To provide a PLC and the like, which can improve the optical coupling efficiency by coupling an optical element to a light waveguide part without having a gap. The PLC includes a light waveguide part and an optical element mount part. The light waveguide part has a lower clad layer,... Agent: Nec Corporation Of America

20090087157 - Fiber optic connector holder and method: The present invention relates to a fiber optic connector holder sized to fit within an opening for mounting a fiber optic adapter. The fiber optic connector holder is configured to permit a fiber optic connector with a dust cap positioned about a ferrule and a polished end face of an... Agent: Merchant & Gould PC

20090087158 - Apparatus for restraining fiber optic cables: An apparatus for restraining fiber optic cables in the region of a sealing body of a cable sleeve, namely within an interior delimited by the cable sleeve is disclosed. The apparatus has a fitting part which is capable of being fastened on the sealing body of the cable sleeve, and... Agent: Corning Incorporated