Optical waveguides inventions

20090279825 - Optical fsk/ssb modulator having intensity balance function: It is an object of the present invention to provide an optical modulator which is capable of adjusting optical intensity of optical signals which contains non-desired components so that the intensity of the components become at a similar level, whereby the optical modulator is capable of effectively suppressing the non-desired... Agent: Ostrager Chong Flaherty & Broitman PC

20090279826 - Door handle apparatus for vehicle: A door handle apparatus for a vehicle, opening and closing a vehicle door, the door handle apparatus includes an informing portion for visually informing a state of the vehicle door, including a locking/unlocking state thereof, to a user by a decorative light, which is a visible light, an operation detecting... Agent: Buchanan, Ingersoll & Rooney PC

20090279827 - Optical transmission module: An optical module has an optical element which transmits or receives an optical signal, an optical transmission line optically coupled to the optical element to transmit the optical signal, and a board to which at least one end portion including an incident and outgoing port of the optical signal in... Agent: Osha Liang L.L.P.

20090279828 - Wavelength locking and power control systems for multi-channel photonic integrated circuits (pics): A transmissive active channel element is provided in each signal channel of a monolithic multi-channel TxPIC where each channel also includes a modulated source. The active channel element functions both as a power control element for both monitoring and regulating the output channel signal level of each signal channel and... Agent: Infinera Corporation Ross Carothers

20090279829 - Lens arrangement for optical rotary joints: According to one embodiment, an optical rotary joint comprises a first collimator arrangement for coupling-on first light-waveguides, and a second collimator arrangement for coupling-on second light-waveguides, with the latter being rotatably supported relative to the first collimator arrangement about a rotation axis. A Dove prism is provided between the first... Agent: Daffer Mcdaniel LLP

20090279830 - Optical gate array device: An optical gate array device which permits the use of an optical gate array with a pitch smaller than the diameter of optical fibers. The optical gate array has an array of optical gates, and an optical fiber array has an array of optical fibers. A lens is arranged between... Agent: Fujitsu Patent Center C/o Cpa Global

20090279831 - Bail type unlocking device for opto-electronic module: A bail type-unlocking device for an opto-electronic module, which pertains to an unlocking device for a hot pluggable type opto-electronic module in the optical communication field. The unlocking device includes: a bottom housing; an operating unit; a latching unit; an elastic element; and a briquetting; wherein: the latching unit is... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090279832 - Hermaphroditic fibre optical connector system: The connector system provides two identical hermaphroditic housings, which accomplish a reliable connection of standard optical fiber connectors without the use of an adaptor. The connector system includes a first housing mounted to a first printed wiring board and a second housing mounted to a second printed wiring board. Each... Agent: Molex Incorporated

20090279833 - Buffer tube with adhesively coupled optical fibers and/or water-swellable element: A buffer tube arrangement includes an adhesive material to adhesively bond a water-swellable element to a plurality of optical fibers and/or a buffer tube.... Agent: Summa, Additon & Ashe, P.A.

20090279834 - Data communication cable: A data communication cable comprising a plurality of optical glass fibres, in which optical glass fibres of the fluorine-doped graded-index multimode glass fibre type are used. The present invention further relates to the use of fluorine-doped graded-index multimode optical glass fibres in an optical glass fibre ribbon. An object of... Agent: Adams Intellectual Property Law, P.A.

20090279836 - Bend-insensitive single-mode optical fiber: A single-mode optical fiber includes a central core, an intermediate cladding, a depressed trench, and an external optical cladding. The central core has a radius r1 and a positive refractive index difference Δn1 with the optical cladding. The intermediate cladding has a radius r2 and a refractive index difference Δn2... Agent: Summa, Additon & Ashe, P.A.

20090279835 - Single-mode optical fiber having reduced bending losses: A single-mode optical fiber includes a central core, an intermediate cladding, a depressed trench, and an external optical cladding. The central core has a radius r1 and a positive refractive index difference Δn1 with the optical cladding. The intermediate cladding has a radius r2 and a positive refractive index difference... Agent: Summa, Additon & Ashe, P.A.

20090279837 - Plastic optical fiber cable and method of signal transmission using the same: A plastic optical fiber cable includes: a bare optical fiber including a core made of a poly(methyl methacrylate) or a copolymer including methyl methacrylate as a major component and a cladding layer including, at least in the outermost layer, a layer made of a certain fluorine-containing olefin-based resin; and a... Agent: Fitch, Even, Tabin & Flannery

20090279838 - Optical waveguides and methods of making the same: An optical waveguide includes a silicon wafer having two opposed sides. A first notch is defined in each of the two opposed sides such that the silicon wafer includes a head portion and a first stem portion.... Agent: Hewlett-packard Company Intellectual Property Administration

20090274408 - Optical modulator component and optical modulator: An optical modulator component 2 has a substrate 4 for modulation made of an electro-optical material and having a joining face 4b; an optical waveguide 6 provided in or on the substrate 4 and having at least one pair of branched portions 6c; and a radio-frequency interaction portion 11 applying... Agent: Burr & Brown

20090274409 - Selectively enhancing angular beam deflection: According to one embodiment, an apparatus for deflecting light beams comprises an input deflector and one or more Bragg gratings. The input deflector receives light beams from input channels, and deflects each light beam to an initial deflection angle. A Bragg grating deflects at least one light beam from the... Agent: Baker Botts L.L.P.

20090274410 - Electrooptic probe for measuring temperature and electromagnetic field: A device for measuring an electromagnetic field and the temperature in an analysis zone includes a light source for sending a light beam into a polarization-maintaining optical fiber. The light beam is directed along one axis of the fiber. An anisotropic electrooptic material is placed in the zone for receiving... Agent: HowardIPLaw Group

20090274411 - Evanescent iii-v silicon photonics device with spin coat bonding: Briefly, in accordance with one or more embodiments, a hybrid photonics device comprises a silicon portion having one or more features formed therein, a non-silicon portion comprising one or more photonics devices proximate to the one or more features of the silicon portion, and a bonding layer coupling the silicon... Agent: Cool Patent, P.C. C/o Cpa Global

20090274414 - Light emitting device using three-dimensional photonic crystal: In a light emitting device, efficiency and stability are improved. A light emitting device 10 includes a three-dimensional photonic crystal 20. The three-dimensional photonic crystal includes a first defect part 70 forming a resonator including an active medium, a second defect part 80 forming a waveguide for taking out light... Agent: Canon U.s.a. Inc. Intellectual Property Division

20090274412 - Optical module, method of producing optical module, optical transmission module, and electronic apparatus: An optical module comprising has a support board, an optical transmission path, and at least a single optical element having a light receiving function or a light emitting function provided on the support board. A light emission surface of said optical transmission path or a light incidence surface of the... Agent: Osha Liang L.L.P.

20090274413 - 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 Intellectual Property Administration

20090274415 - Compact, low-loss optical wavelength multiplexer/demultiplexer: The multiplexer/demultiplexer has a planar reflector, a planar first filter element and a planar second filter element offset from the first filter element in a first direction to receive light reflected and transmitted from a first location on the first filter element. The first and second filter elements have orthogonal... Agent: Agilent Technologies Inc.

20090274416 - Virtual electronic switch system: A virtual electronic switch system for a vehicle is provided. In one example, the system includes a switch assembly, a switch interface, and a computer. The switch assembly provides actuators that interface with non-contact sensors in the switch interface. The computer is coupled to the switch interface and assigns functions... Agent: Howison & Arnott, L.l.p

20090274417 - Optical fiber systems for delivering short high power pulses: Described is an optical fiber system for delivering ultrashort pulses with minimal distortions due to nonlinearity. The system is based on delivering the optical pulses in a higher order mode (HOM) of a few-moded fiber. The fiber is designed so that the dispersion for the HOM is very large. This... Agent: Law Office Of Peter V.d. Wilde

20090274418 - Reduction of substrate optical leakage in integrated photonic circuits through localized substrate removal: Structures including optical waveguides disposed over substrates having a chamber or trench defined therein, and methods for formation thereof.... Agent: Goodwin Procter LLP Patent Administrator

20090274419 - Manifold-type lightguide with reduced thickness: A light guide includes a body having an elongate shape and a plurality of light-reflecting faces and light-emitting faces extending along the body. The light-reflecting faces extend in a stepped fashion along the body in the direction of a longitudinal axis of the light guide and are configured to reflect... Agent: Visteon/brinks Hofer Gilson & Lione

20090274420 - System and method for permanently writing a diffraction grating in a low phonon energy glass medium: A system and method for permanently writing diffraction gratings in low phonon energy glass waveguides are shown. Ultrashort light pulses are generated and made to form two beams synchronously superimposed in the waveguide, therefore forming an interference pattern corresponding to the desired grating. The light pulses are focussed so that... Agent: Baker & Hostetler LLP

20090274421 - Optical semiconductor module, adjusting method thereof, and fabricating method thereof: An optical semiconductor module has: a semiconductor laser for radiating a laser beam; a lens for converging the laser beam; and an optical connector outputting the laser beam received from the lens to a transmission path. The optical connector has: a fiber ferrule including an optical fiber with an incident... Agent: Young & Thompson

20090274422 - Connector assembly having a light pipe assembly: A connector assembly includes a first connector having a housing and a plurality of contacts extending from the housing. The housing and the contacts define a mating interface and the first connector includes a light source. A second connector has a housing and a plurality of contacts defining a mating... Agent: Robert J. Kapalka Tyco Technology Resources

20090274423 - Apparatus and method for thermal connection of optical waveguides: A splicer comprises a positioning device, in which the fiber ends in general have a residual offset. A memory stores a predetermined relationship between the possible offset and a parameter which controls the application of heat. The parameter which controls the application of heat, for example the splicing time for... Agent: Corning Incorporated

20090274424 - Buffered optical fibre and method for improving the lifetime thereof: A buffered optical fibre includes an optical waveguide, at least one exterior coating surrounding the optical waveguide and a buffer coating surrounding the at least one exterior coating, wherein the buffer coating is a tight buffer coating made of a material having a density of at least about 1.2 Kg/dm3,... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090274425 - Fiber optic cables having coupling and methods therefor: A fiber optic cable including at least one optical fiber disposed within a cavity of a cable jacket and methods for manufacturing the same are disclosed. The cavity has a first cavity cross-sectional area and a second cavity cross-sectional area located at different longitudinal locations along the cable, where the... Agent: Corning Incorporated

20090274426 - Fiber optic cable and method of manufacturing the same: A fiber optic cable is that includes at least one optical fiber and a protective layer generally disposed about the optical fiber. A cable jacket surrounds an outer surface of the protective layer, and a control layer is interposed between a portion of the protective layer and a portion of... Agent: Corning Incorporated

20090274427 - Optical fiber and optical device: An optical fiber includes a core region and a cladding region formed on an outer circumference of the core region. The cladding region includes a plurality of holes arranged around the core region and has a refractive index lower than a refractive index of the core region. A zero dispersion... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090274428 - Optical fiber and a method of making: According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of... Agent: Corning Incorporated

20090274431 - Bulkhead with angled openings and method: A bulkhead adapter plate that mounts to a face panel of a cable management panel, and a method of making the bulkhead adapter plate. The plate including angled adapter mounting openings formed by performing a minimum number of bending operations.... Agent: Merchant & Gould PC

20090274430 - Drawer arrangement with rack and pinion: A cable management panel including chassis, a sliding drawer, and a rack and pinion arrangement. The rack and pinion arrangement including a first length of track located on an interior surface of the chassis, a second length of track provided on a drawer slide, and a gear that engages both... Agent: Merchant & Gould PC

20090274429 - Front-access locking arrangement for sliding drawer: A cable management panel including a chassis, a drawer, and an open-drawer locking arrangement. The open-drawer locking arrangement preventing inadvertent closing movement of the drawer relative to the chassis. The open-drawer locking arrangement including an activation arm accessible from the front of the drawer and a locking piece located at... Agent: Merchant & Gould PC

20090274432 - Optical connector unit: An optical connector unit according to the present invention is characterized in that the optical connector unit 10 comprises: optical fiber plugs 11 as a plurality of pieces therefor; a member for location 12, for inserting thereinto each of the optical fiber plugs as a plurality of the pieces therefor,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090274433 - Photonic crystal device: A photonic crystal device according to the present invention includes: a first dielectric substrate 104 having a first lattice structure, of which the dielectric constant changes periodically within a first plane; a second dielectric substrate 105 having a second lattice structure, of which the dielectric constant changes periodically within a... Agent: Mcdermott Will & Emery LLP

20090263068 - Optical guided mode spatial switches and their fabrication: Optical guided mode fast 1×2 and 2×2 spatial switches are provided that can be used in multimedia communication networks. These switches require a relative refractive index change of only 0.0001˜0.0002 and can be realized using Lithium Niobate, Polymers, semiconductors, etc. Extinction ratios of these switches are made to be better... Agent: Patent Services

20090263070 - Atr-probe: An ATR-probe including: a housing having a media opening; a radiation guiding body closing the media opening and having two planparallel surfaces, between which light can be guided by means of total reflection. A section of a first planparallel surface bordered by a sealing ring can be contacted through the... Agent: Bacon & Thomas, PLLC

20090263071 - Optical environmental sensor and method for the manufacturing of the sensor: A sensor which reacts on influences from an environment. The sensor includes a zero-order diffractive color filter. The zero-order diffractive color filter includes a high-index waveguide layer, a zero-order diffractive grating structure and a layer of an reactive material, wherein the reactive material is in contact with the environment and... Agent: Pauley Petersen & Erickson

20090263069 - Raman amplification in distributed optical fiber sensing systems: A method of providing Raman amplification in an optical fiber sensing system, comprises generating a probe pulse of light and launching the pulse into a sensing optical fiber, generating pump light at a shorter wavelength and modulating it to produce a time-varying intensity profile, and launching the pump light into... Agent: Schlumberger Reservoir Completions

20090263072 - Tilted grating sensor: The present invention relates to a sensor using a tilted fiber grating to detect physical manifestations occurring in a medium. Such physical manifestations induce measurable changes in the optical property of the tilted fiber grating. The sensor comprises a sensing surface which is to be exposed to the medium, an... Agent: White & Case LLP Patent Department

20090263076 - Charge-based memory cell for optical resonator tuning: An optical resonator configured to be tuned using a charge-based memory cell includes an optical cavity configured to transmit light and receive injected charge carriers; a charge-based memory cell in proximity to or within the optical cavity, the memory cell containing a number of trapped charges which influence the resonant... Agent: Hewlett-packard Company Intellectual Property Administration

20090263074 - Distributed feedback laser array: The present invention provides a low-cost, high-bandwidth optical laser array where subsequent streams of data are injected in a serial fashion. The invention permits the creation of multiple channels of data on a single optical substrate without the use of costly multiplexer arrays to consolidate various optical signals. Further, the... Agent: Wyatt, Tarrant & Combs, LLP

20090263077 - Flexible optical interconnection structure and method for fabricating same: A flexible optical interconnection structure has a plurality of layers including an optical waveguide made of a core and a clad. The core is disposed to include a neutral surface that is not affected by expansion or contraction by bending. Alternatively, when the neutral surface is position outside the core,... Agent: Mcginn Intellectual Property Law Group, PLLC

20090263078 - Optical device: Plural p-n junctions are formed in a waveguide such that they have junction interfaces in a normal direction to a surface of a substrate (to an extending direction of the substrate). Accordingly, a doping concentration changes in only a horizontal direction in the substrate, and it is possible to fabricate... Agent: Juan Carlos A. Marquez C/o Stites & Harbison PLLC

20090263073 - Optical waveguide film, method for manufacturing thereof, electrical and optical hybrid circuit film including the waveguide film, and electronic device including thereof: The present invention relates to an optical waveguide film that has a high optical coupling efficiency at a light input portion and an excellent flexibility at least a part of the film. Specifically, the present invention provides an optical waveguide film that has a core and a clad comprising a... Agent: Buchanan, Ingersoll & Rooney PC

20090263075 - Temperature insensitive arrayed waveguide grating multiplexer for optical property compensation and the manufacturing method thereof: Two methods are presented in order to properly compensate the changes of the optical characteristics, which are caused by the optical path length change. First, a path length compensation method in which the additional optical path length, equivalent to the dicing kerf width of the substrate, is added onto the... Agent: The Webb Law Firm, P.C.

20090263079 - Optical routers and logical gates based on the propagation of bragg solitons in non-uniform one-dimensional photonic crystals: An optical router for all-optical control over the propagation direction of optical pulses, comprising: (i) a non-uniform one-dimensional photonic crystal receiving a plurality of input optical pulses, comprising: at least one first region used to obtain Bragg solitons; at least one second region in which non-linear interaction between two sufficiently... Agent: The Law Office Of Michael E. Kondoudis

20090263080 - Stress free mounting of optical bench for wss: An optical bench in a wavelength selective switch (WSS) is mounted using a combination of fixed mounts and stress-free mounts. The WSS is packaged in an enclosure including a base, a sidewall, and a lid. The optical switching engine is attached directly to the base. The optical bench is attached... Agent: Teitelbaum & Maclean

20090263081 - Bi-directional signal interface with enhanced isolation: A bi-directional signal interface includes a carrier signal source that generates a carrier traveling wave at an output. A first traveling wave structure includes a first and a second waveguide having an input that is coupled to the output of the carrier signal source. The first and second waveguide propagate... Agent: Rauschenbach Patent Law Group, LLC

20090263082 - Optical receptacle, optical module, and method of manufacturing an optical module: Provided are an optical receptacle capable of manufacturing an optical module thereby, while suppressing a manufacturing cost, preventing a quality degradation, and suppressing a quantity of returning light by reflection. In the optical receptacle, a recess for receiving a lens and a lens support and a through-hole penetrating from a... Agent: Brundidge & Stanger, P.C. Suite 330

20090263083 - Apparatus for side fire fiber lasers: A fiber laser having at least one pair of reflectors coupled to an optical fiber, the at least one pair of reflectors defining an optical cavity between the at least one pair of reflectors and being configured to reflect light within the optical cavity. At least one light pump is... Agent: Ofs Fltel, LLC (formerly Furukawa Electric North America, Inc.)

20090263084 - Arrayed waveguide grating circuit: Two AWG circuits are integrated while preventing degradation in quality of a multiplexing/demultiplexing function. An arrayed waveguide grating circuit includes: a first slab waveguide (52) connected to a first input waveguide (51a) and second output waveguides (55b); a second slab waveguide (54) connected to first output waveguides (55a) and a... Agent: Workman Nydegger 1000 Eagle Gate Tower

20090263085 - Device for injecting light into an optical wave guide: A device for injecting light into an optical wave guide is provided, via which a focused light beam is oriented by a manipulator. A simple and precise adjustment of maximum injection efficiency during the injection of light into optical wave guides is facilitated, by a manipulator, and the permanent fixing... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090263086 - Data transmission cable with fakra housing: The invention relates to a data transmission cable (10; 20), in particular for motor vehicles, at at least one of whose ends a plastics housing (14; 24) is arranged, said housing having mechanical dimensions in its interface region (30; 32) which conform to the FAKRA standardisation scheme. The data transmission... Agent: Law Office Of Delio & Peterson, LLC.

20090263087 - Optical receptacle: An optical receptacle which couples a connector ferrule in which an optical fiber is inserted and an optical semiconductor package. The optical receptacle comprises: a precise sleeve which holds the connector ferrule; a receptacle body including a connection portion connected to the optical semiconductor package, a cylindrical portion in which... Agent: Leydig Voit & Mayer, Ltd

20090263088 - Fusion splicer: A fusion splicer includes a fusion splicing device for butting optical fiber end parts against each other and fusing them and a reinforcement treatment device for reinforcing the optical fibers subjected to the fusion splice with a reinforcement sleeve covered thereon, and a display for monitoring the state of fusion... Agent: Mcdermott Will & Emery LLP

20090263089 - Optical fiber cable: A fiber optic cable having a jacket, at least one tube and at least two fibers within the tube in a loose tube arrangement. The fibers within the tube have a fiber length differential substantially in the range of 0.01%-0.04%.... Agent: Sofer & Haroun LLP.

20090263090 - Multiple-core optical fiber with coupling between the cores: An optical fiber includes a cladding, a first core, and a second core. At least one of the first core and the second core is hollow and is substantially surrounded by the cladding. At least a portion of the first core is generally parallel to and spaced from at least... Agent: Knobbe Martens Olson & Bear LLP

20090263091 - Optical fiber: A relative refractive index difference Δ1 between a center core region and a cladding layer is 0.30% to 0.35%, a relative refractive index difference Δ2 between an outer core layer and the cladding layer is −0.10% to −0.04%, and Δ1:Δ2 is 2.5:1 to 7.5:1. A diameter of the center core... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090263092 - Optical fiber: An improved optical fiber achieves both reduced bending and microbending losses, as well as a much higher Brillouin threshold, as compared to standard transmission fibers. The optical fiber comprises a core including at least two dopants and having a refractive index difference Δn1 with an outer optical cladding, a first... Agent: Summa, Additon & Ashe, P.A.

20090263093 - Light guiding assembly: A light guiding mechanism (20) for illuminating a keypad assembly of a portable electronic device is provided. The light guiding mechanism (20) includes a light guiding plate (22) and a shielding plate (24). The light guiding plate (22) having a peripheral wall (226). The shielding plate (24) having a frame... Agent: PCe Industry, Inc. Att. Steven Reiss

20090263094 - Two-dimensional photonic crystal: Holes 12 are created in a slab-shaped body 11. On the first surface 131 of the body 11, the holes 12 are arranged at the lattice points of a triangular lattice 141. On the second surface 132, they are arranged at the lattice points 122 located at positions corresponding to... Agent: Oliff & Berridge, PLC

20090263095 - Method for integrating a light guide in or onto a support structure, support structure with a light guide, and device comprising such support structure: The invention relates to a method for integrating a light guide (1) in or onto a support structure (3), wherein said parts (1,3) are molded and wherein during this molding and/or a subsequent cooling down process, shrink behavior of the respective parts (1,3) is controlled in such way that both... Agent: Philips Intellectual Property & Standards

20090263096 - Fiber distribution hub with multiple configurations: A fiber distribution hub (FDH) includes an enclosure and brackets with provisions to be mountable in multiple configurations. More particularly, the FDH is mountable in multiple configurations to a pole. The FDH includes provisions to be reconfigurable within the enclosure. More particularly, a hinged storage panel is reconfigurable between a... Agent: Merchant & Gould PC

20090263097 - Multi-configuration mounting system for fiber distribution hub: A fiber distribution hub (FDH) includes an enclosure and brackets with provisions to be mountable in multiple configurations. More particularly, the FDH is mountable in multiple configurations to a pole. The brackets are rearrangeable to provide the mounting configuration with either a short or extended offset between an FDH cabinet... Agent: Merchant & Gould PC