Optical waveguides inventions 02/08

20080050064 - Mems optical switch device: A MEMS optical switch device is disclosed that includes an optical system deflecting and outputting light signals; first and second test light generation parts generating and feeding first and second test lights to specific input and output ports, respectively, of the optical system; first and second divergence parts diverging the... Agent: Bingham Mccutchen LLP

20080050065 - Wavelength selective switch module: A wavelength selective switch module is disclosed. The wavelength selective switch module includes: a unit for generating test light; a multiplexing unit for multiplexing the test light with the wavelength multiplexed light; a splitting unit for splitting the test light from output light of each of two output ports; a... Agent: Staas & Halsey LLP

20080050066 - Resonator and device having the same: A resonator with a three-dimensional photonic crystal having a fewer number of layers presenting a basic period, having a wide frequency band presenting a complete photonic band gap, and operating in a single mode, as well as a device using the same are provided, the three-dimensional photonic crystal including a... Agent: Fitzpatrick Cella Harper & Scinto

20080050067 - 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: Staas & Halsey LLP

20080050069 - Optical coupler, a method of its fabrication and use: An optical coupler for coupling light from at least two input fibers into one output fiber and a method of fabricating and use of an optical coupler. The coupler comprises a) an input section comprising an output end face at one end of the bundling-length of input fibers; and b)... Agent: Buchanan, Ingersoll & Rooney PC

20080050070 - Method and apparatus for sealing fiber optic connectors for industrial applications: The invention is a protective enclosure that can be adapted for use with different types of connectors, including LC type fiber optic connectors. The protective enclosure includes a plug portion and an adapter portion. The plug portion includes a plug housing having an internal longitudinal bore adapted to accept a... Agent: Tyco Technology Resources

20080050071 - Optical receptacle and optical receptacle module therewith: An optical receptacle is provided with a split sleeve, and a fiber stub having a first optical fiber inserted and fixed in a through hole passing through the center of a ferrule. A length of the split sleeve is determined so that a value obtained by dividing a second distance... Agent: Young & Thompson

20080050072 - Expanded beam, single fiber, fiber optic connector: The expanded beam, single fiber, fiber optic connector includes a lens holder, a lens, and a ferrule. The lens holder retains the lens, and the lens holder accommodates the ferrule. The lens is in optical communication with an optical fiber retained in the ferrule. The lens holder has an outside... Agent: Karl D. Kovach Emerson Network Power Connectivity Solutions, Inc.

20080050074 - 10gbase-lx4 optical transceiver in xfp package: An optical transceiver for including an electrical connector with a serial interface for coupling with an external electrical cable or information system device, a fiber optic connector adapted for coupling with an external optical fiber, and an electro-optical subassembly for converting between an information containing electrical signal and a modulated... Agent: Emcore Corporation

20080050063 - Opto-mechanical switching system: An optical switching system includes a two-dimensional arrangement of a plurality of switching elements. Each switching element includes an optical guiding structure which includes two pairs of waveguides; a driving arrangement for individually moving the switching elements between at least a first and a second position; and a first and... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080050068 - Programmable optical grating device and method: An optical waveguide has a surface. An array of separately actuated bodies is disposed proximal to the exposed surface, and an actuator separately actuates at least some of the bodies to change a spectral characteristic of a wave propagating through the waveguide. Preferably, the bodies are metal striplines, an electro-optical... Agent: Michael G. Pate, Esq. Dorsey & Whitney LLP

20080050073 - Expanded beam connector: An optical connector comprising: (a) a lens; (b) a ferrule assembly comprising a ferrule with an endface and at least one fiber in the ferrule having a fiber end presented at the endface; (c) a housing for holding the ferrule assembly and the lens in a certain axial and radial... Agent: Tyco Electronics Corporation

20080050075 - Multi-wavelength, multimode optical fibers: A silicate optical fiber comprises a graded index silicate core co-doped with aluminum oxide, phosphorus oxide, germanium oxide and fluorine in unique compositions that we have discovered allow multimode, multi-wavelength operation without significant intermodal dispersion. Illustratively, the core comprises a multiplicity of compositions whose refractive indices are graded from a... Agent: Michael J. Urbano

20080050076 - Low loss photonic waveguide having high index contrast glass layers: A low-loss photonic waveguide in the form of a Bragg optical fiber is provided that includes a dielectric core region extending along a waveguide axis that is characterized by a low amount of Rayleigh scattering, and a dielectric confinement region surrounding the dielectric core region that includes alternating layers of... Agent: Corning Incorporated

20080050078 - Apparatus and methods using hollow-core fiber tapers: An optical filter and methods of filtering are provided. The optical filter includes a hollow-core fiber including a first portion and a second portion. The first portion includes a hollow core having a first diameter and a cladding having a second diameter. The second portion includes a hollow core having... Agent: Knobbe Martens Olson & Bear LLP

20080050077 - Photonic crystal fiber: A cladding 12 of a photonic crystal fiber 10 has first to fourth air hole layers 15 to 18 formed around a core 11 one after another in the radial direction of the fiber. In forming the fiber, assuming that air holes 12a constituting the first air hole layer 15... Agent: Nixon Peabody

20080050079 - Low attenuation optical fiber and its producing method in mcvd: Disclosed is a low-attenuation single-mode optical fiber having a photoconductive core and a clad, which shows very low OH concentration in MFD (Mode Field Diameter) region. The optical fiber includes a core positioned at its center for photoconduction, and a dehydrated clad and a base clad which are coated on... Agent: Jones Day

20080050080 - Component with optical fiber and associated optical fiber: The invention relates to the field of components with optical fibers and of associated optical fibers. The invention relates, on the one hand, to a component with optical fiber including an at least partly bent optical fiber (2) which successively comprises, from the center to the periphery, an optical core... Agent: Sughrue Mion, PLLC

20080050082 - Optical functional devices: An optical functional device 1 has a slab type two-dimensional photonic crystal layer 29. The layer 29 has a dielectric layer 4 and a plurality of lattice columns 5 each comprising dielectric pillars. A waveguide portion 6 is provided in the photonic crystal layer 29. A ground electrode 8 and... Agent: Burr & Brown

20080050081 - Wafer-level alignment of optical elements: Methods are disclosed of fabricating an optical assembly. An active optical element is disposed near or on a first surface of a slab of optical material. A passive optical element is formed on a second surface of the slab, with the second surface being substantially parallel to the first surface.... Agent: Townsend And Townsend And Crew LLP / Amat

20080050085 - Cable management system with spring latch: A cable management assembly, and methods related thereto, including a panel having a plurality of discrete openings, including first shaped apertures and second shaped apertures. The assembly further including cable management devices having low-profile mounting arrangements. The low-profile mounting arrangements being configured to mount the cable management devices at selected... Agent: Merchant & Gould PC

20080050084 - Cable management system with twist latch: A cable management assembly, and methods related thereto, including a panel having a plurality of discrete openings, including first shaped apertures and second shaped apertures. The assembly further including cable management devices having low-profile mounting arrangements. The low-profile mounting arrangements being configured to mount the cable management devices at selected... Agent: Merchant & Gould PC

20080050083 - Fiber optic housing assembly for fiber optic connections comprising pivotable portion: There is provided a fiber optic housing assembly that includes a fiber optic interconnection portion and/or a splice portion. To provide the technician convenient access to the interconnection portion and/or the splice portion, the slidable shelf portion includes a pivotable portion that allows the interconnection portion and/or splice portion to... Agent: Corning Cable Systems LLC

20080050086 - Optical fiber containing alkali metal oxide: Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide a silica-based core, said core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, LiO2, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 50 and 1000... Agent: Corning Incorporated

20080050087 - Fiberoptic luminaire with scattering and specular side-light extractor patterns: Fiberoptic luminaire with scattering and specular side-light extractor patterns comprises a fiberoptic light pipe with elongated side-light emitting portion. Such portion illuminates a target area with a scattering, and a specular, light extractor pattern. The extractor patterns are arranged to extract light from the side-light emitting portion over a radial... Agent: Bruzga & Associates

20080050088 - Backlight with structured surfaces: A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structures are arranged to extract light from... Agent: 3m Innovative Properties Company

20080044123 - Monitor photodetector equipped optical modulator: An optical modulator has, on a substrate having electro-optic effect, an optical waveguide including an input optical waveguide, two branching optical waveguides which branch a light beam incident to the input optical waveguide into two beams, two interaction optical waveguides which modulate a light beam phase by applying a voltage... Agent: Frishauf, Holtz, Goodman & Chick, PC

20080044124 - Optical modulator: An optical modulator of the Mach-Zehnder type including electrodes disposed above a substrate having a pair of linear portions of an optical waveguide includes a signal electrode to which modulating signals are applied; first and second earth electrodes; and a bias electrode to which a bias signal for controlling an... Agent: Staas & Halsey LLP

20080044126 - Integrated optical waveguide structure with low coupling losses to an external optical field: An integrated optical waveguide structure having a waveguide core for guiding an optical field, formed on a lower cladding layer. The waveguide core has a waveguide core layer substantially coextensive to the lower cladding layer and having a substantially uniform thickness, and a waveguide core rib of a substantially uniform... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080044130 - Optical printed circuit board, a method of making an optical printed circuit board and an optical waveguide: The present invention provides an optical printed circuit board, comprising at least one optical waveguide for carrying optical signals on the optical printed circuit board; and a trench formed adjacent the at least one optical waveguide, wherein the trench contains a light absorptive material to absorb light that strays from... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080044129 - Printed circuit board and manufacturing method thereof: A printed circuit board and a method of manufacturing a printed circuit board are disclosed. A printed circuit board in which optical waveguides are formed for transmitting optical signals together with electrical signals, which includes a cladding, a core embedded in the cladding that transmits optical signals, and a wiring... Agent: Staas & Halsey LLP

20080044127 - Printed circuit board element comprising at least one optical waveguide, and method for the production of such a printed circuit board element: Disclosed is a printed circuit board element comprising an optical waveguide and an embedded optoelectronic element.... Agent: Ladas & Parry

20080044136 - Retention release auxiliary device for optical connector and printed circuit board device: A release auxiliary device (6) includes a base member (51) fixedly provided with respect to a receptacle (11), and an auxiliary lever (52) provided in an elastically deformable manner with respect to the base member (51). The auxiliary lever (52) has a base part (61) extending to the base member... Agent: Staas & Halsey LLP

20080044137 - Ruggedized fiber optic connector assembly: A ruggedized fiber optic connector assembly includes a substantially hollow plug housing; and a glue body disposed within the substantially hollow plug housing; wherein the glue body includes a first portion that is configured to engage and retain an optical cable comprising an optical fiber and one or more strength... Agent: Corning Cable Systems LLC

20080044139 - Electro-optical plug and receptacle: A combination fiber optic and electrical connector and a plug for mating therewith are both provided.... Agent: Baker & Daniels LLP

20080044140 - Aligning lens carriers and ferrules with alignment frames: Methods of aligning lens carriers and ferrules with alignment frames during assembly of optical cable connectors are disclosed. In one aspect, a method may include coupling an alignment frame with a circuit substrate, aligning a lens carrier with the alignment frame, and aligning a ferrule with the alignment frame. Other... Agent: Blakely Sokoloff Taylor & Zafman

20080044141 - Monolithic active optical cable assembly for data device applications and various connector types: A monolithic cable assembly includes a communication cable and cable connectors coupled to either end of the communication cable. The communication cable includes at least one optical communication channel. The cable connectors include a physical end connector for electrically coupling to a data device connector, optoelectronic components for converting data... Agent: Blakely Sokoloff Taylor & Zafman

20080044143 - Aligning lens carriers and ferrules with alignment frames: Methods of aligning lens carriers and ferrules with alignment frames during assembly of optical cable connectors are disclosed. In one aspect, a method may include coupling an alignment frame with a circuit substrate, aligning a lens carrier with the alignment frame, and aligning a ferrule with the alignment frame. Other... Agent: Intel/blakely

20080044142 - Light emitting diode module: An LED module includes a base, an LED chip, a converging lens, a solid immersion lens, and a light guide plate in that order. The LED chip is for emitting light with a central wavelength and is mounted on the base. The solid immersion lens includes a flat surface facing... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20080044122 - Asymmetric mach-zehnder interferometer having a reduced drive voltage coupled to a compact low-loss arrayed waveguide grating: The invention relates to an asymmetric Mach Zehnder Interferometer (MZI) having a reduced drive voltage, coupled to a compact low-loss arrayed waveguide grating (AWG) to provide a broader passband with low ripple. The integrated device has a compact stackable design for improved manufacturing yield. Inputs and outputs of the device... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20080044125 - Phase plate and optical head device: A phase plate and an optical head device are provided, which are capable of suppressing changes of the amount of light incident on a light-receiving unit even if the phase difference caused by transmission through a protective layer of an optical recording medium differs depending on the type of optical... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080044128 - Transmitter photonic integrated circuits (txpics) and optical transport network system employing txpics: A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated... Agent: North Weber & Baugh LLP Carothers, W. Douglas

20080044131 - Photodetector coupled to a planar waveguide: An improved electro-optical system has a planar waveguide coupled to a photodetector through a transparent substrate. The planar waveguide is within a planar optical structure that can be part of optical communication network. The photodetector is positioned to receive light that passes from the waveguide through the transparent substrate. The... Agent: Dardi & Associates, PLLC US Bank Plaza

20080044132 - Light triggered bending element light switch: A LIGHT TRIGGERED BENDING ELEMENT LIGHT SWITCH will be used to turn on or off the light signal in one of two adjacent fiber optic channels by the action of the electric field of the light passing through the channels. LIGHT TRIGGERED BENDING ELEMENT LIGHT SWITCH can be made adjacent... Agent: Gary Poovey

20080044134 - Light integrating system: The present invention relates to a light integrating device (10) comprising a solid light integrating device (1) with a first length (L1) and with coupled in abutment thereto by an optical coupling a hollow light integrating device (2) such that the light integrating device (10) has a second length (L2)... Agent: Bacon & Thomas, PLLC

20080044133 - Short reach optical interconnect: An optical link includes a polymer waveguide having a top cladding layer, a core polymer layer, and a bottom cladding layer, supported by a substrate, with mirrors and optical vias. The core polymer layer includes a polymer material having a nanoparticle filler with a particle size of less than one... Agent: Dinsmore & Shohl LLP

20080044135 - Optical power monitor and its manufacturing method: An optical power monitor comprising a pig-tail fiber and a GRIN lens opposed to each other with a spacing and each having an end face (angled face) angled with respect to the axis, being low on reflection loss and able to be easily assembled. The pig-tail fiber and the GRIN... Agent: Sughrue Mion, PLLC

20080044138 - Optical connector assembly: Optical connector assemblies suitable for use in harsh environments such as down hole oil and gas well applications and methods for fabricating the same are provided. In one embodiment, an optical connector assembly suitable for down hole oil field applications comprises a first and second optical waveguide urged by a... Agent: Patterson & Sheridan, L.L.P.

20080044144 - Dual function splice component for mechanical splice connector: A fiber optic mechanical splice connector including a single connector element operable for providing optical fiber alignment and strain relief includes opposed splice components that define first and second grooves for receiving the bare glass portions of mating optical fibers, as well as the coated or buffered portion of at... Agent: Corning Cable Systems LLC

20080044145 - Linear member: A linear member comprises a first layer and a second layer, the second layer being arranged around the first layer. The second layer comprises a series of annular grooves. The material for the second layer is substantially stronger than the material for the first layer.... Agent: Todd N. Hathaway

20080044146 - Illuminable image-conducting optical assembly including light-conductive optics housing for creating an illuminating halo: An illuminable image-conducting optical assembly includes an illuminable image-transporting optical fiber bundle having (i) an inner image-conducting bundle with opposed image-input and image-output faces and (ii) a plurality of illumination conduits disposed peripherally about the image-conducting bundle. The illumination conduits include light-emission ends that combine to define a light-output face.... Agent: Louis J Franco Law Office Of Louis J Franco

20080044147 - Nonlinear optical device and method of forming: A nonlinear optical device including at least a first nonlinear optical grating is provided. The first grating comprises a plurality of adjacent nonlinear optical (NLO) units. Each NLO unit has a single crystal segment and a polycrystalline segment. The single crystal segment is formed from a single crystal of a... Agent: Jones Day

20080044148 - Enhancement of second-order non-linear optical susceptibilities in organic film materials using non-centrosymmetric nanoparticles: A non-linear optical material comprising a plurality of non-centrosymmetric nanoparticles juxtaposed to non-linear optical (NLO) film at a localized surface Plasmon resonance (LSPR) of the nanoparticles. The LSPR is resonant at a wavelength of an incident light source, wherein a second-order non-linear susceptibility (χ(2)) of the NLO film with respect... Agent: Whitham, Curtis & Christofferson & Cook, P.C.

20080044149 - Polymerizable composition: n

20080044150 - Method for making an optical fiber preform via internal vapor deposition: The present invention relates to a method for manufacturing an optical preform by employing an internal vapor deposition process. The method uses an energy source and a substrate tube, wherein the energy source is movable over the length of the substrate tube between a point of a reversal at the... Agent: Summa, Allan & Additon, P.A.

20080044151 - 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... Agent: Panduit Corp.

20080044152 - Variable optical attenuator and ranging apparatus using the same: A variable optical attenuator for adjusting a power of light which is output from an output end of a first optical fiber and is to be led to an input end of a second optical fiber, includes a reflection member which reflects the light output from the output end of... Agent: Chapman And Cutler

20080044153 - Periodic poling structure and electrode element and method for preparing the same: A periodic poling structure comprises a ferroelectric substrate including a plurality of tunnels, a plurality of first domains positioned in the ferroelectric substrate between the tunnels and a plurality of second domains interleaved between the first domains in the ferroelectric substrate. Each first domain has a first polarization direction, and... Agent: Connolly Bove Lodge & Hutz LLP

20080037929 - Optical printed circuit board and fabricating method thereof: An optical printed circuit board which can transfer optical signal and electric signals simultaneously, and a method of fabricating the optical printed circuit board. An optical printed circuit board which includes an upper cladding layer, a core layer positioned in the upper cladding layer that has a first reflecting surface... Agent: Staas & Halsey LLP

20080037931 - Liquid switches and switching devices and systems and methods thereof: A switching device includes a substrate with one or more passages and a force application system. Each of the passages has two or more openings, a force application system, and a liquid in the one or more passages in the substrate whose volume exceeds an internal volume of the one... Agent: Nixon Peabody LLP - Patent Group

20080037933 - Speckle reduction using a fiber bundle and light guide: Illumination of objects in an optical inspection system may utilize an at least partially-coherent light source optically connected to a fiber optic bundle that is linked to a light guide comprising a single optical element. The combination of the bundle and element provides coherence-breaking effects and serves to smooth out... Agent: Dority & Manning, P.A.

20080037934 - Optical connector: An optical connector is disclosed. The optical connector includes a first waveguide member that includes a first waveguide, a first lens disposed at one end surface of the first waveguide, and a second lens disposed at the other end surface of the first waveguide.... Agent: Staas & Halsey LLP

20080037936 - Silicon arrayed waveguide grating device for reducing effective refractive index variation of optical waveguide according to temperature: Provided is a silicon array waveguide grating (AWG) device comprising a silicon array waveguide in which a plurality of optical waveguides formed of a lower cladding layer, a silicon core, and an upper cladding layer are arranged, wherein the variation of the refractive index of the silicon core is positive,... Agent: Ladas & Parry LLP

20080037937 - Optical connector: The invention relates to an optical connector for connecting plastic optical fibers for establishing multimedia connections in motor vehicles according to the MOST® standard with an ESD protection. The object formulated for the invention is to provide a connector which is resistant to voltage flashovers and, in particular, can be... Agent: Reising, Ethington, Barnes, Kisselle

20080037939 - Splicing small core photonic crystal fibers and conventional single mode fiber: The present invention relates to a method for splicing a conventional single mode fiber and a photonic crystal fiber having a small core. The method, relying upon an offset fusion splicer, applies repeated arc discharges having weak current and short duration. The method results in a low loss between 1.5... Agent: Attn: Maquita Wong The Hong Kong Polytechnic University

20080037925 - Dgd compensating apparatus: A DGD compensating apparatus capable of compensating the time varying DGD of each wavelength component in the propagation light. The DGD of each wavelength component in the inputted light is monitored by a DGD monitor, and a polarization splitter splits the inputted light into first polarization light and second polarization... Agent: Venable LLP

20080037926 - 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... Agent: Jones Day

20080037927 - Optical waveguide module: An optical waveguide module includes a wiring board, and a light-receiving element and optical waveguide substrate that are positioned on both sides of this wiring board. The wiring board includes a base member having transparency to light of the wavelength that can be received by the light-receiving element; surface electrical... Agent: Young & Thompson

20080037928 - Photonic integrated circuit device and elements thereof: A photonic integrated circuit (PIC) device is described. The PIC device includes a set of optical transceivers including optical transmitters and optical receivers, and an embedded optical interconnect mesh operatively associated with the set of optical transceivers and structured to enable at least one of the following network architectures: a... Agent: Doron Handelman

20080037930 - Tappable cable segment for communication infrastructure: p

20080037932 - Optical switch having angle tuning elements and multiple-fiber collimators: An optical switch with a compact form factor includes a multiple-fiber collimator and an angle tuning element for deflecting an optical beam from an input fiber into one of at least two output fibers. The angle tuning element may be provided between a pair of coaxially-aligned collimators, one of which... Agent: Patterson & Sheridan, LLP

20080037935 - Method and apparatus for manufacturing fiber gratings, and an optical fiber having the fiber gratings formed: Provided are a method and apparatus for manufacturing fiber gratings capable of removing or reducing birefringence and polarization-dependence caused by fiber gratings, and an optical fiber having the fiber gratings formed thereby. The method includes: selectively exposing an optical fiber to a light source, and generating first fiber gratings on... Agent: Harness, Dickey & Pierce, P.L.C

20080037938 - Modular fiber optic connector system: An optical fiber interconnection system with a small number of modular components that can be configured for simple construction in many configurations. The system includes connector housings. Optical fibers are installed into the housings on ferrule carriers. The housings are brought together in adapters. Different styles of adapters are available... Agent: Blank Rome LLP

20080037940 - Tube for air blown installation and tube cable using the same: Disclosed is a tube for air blown installation and a tube cable using the same. The tube includes an outer layer made of polyethylene; and an inner layer co-extruded on an inner side of the outer layer and made of a mixture of polyethylene and siloxane, wherein the inner layer... Agent: Jones Day

20080037941 - Hybrid cables for communication networks: Hybrid cables for communication networks are disclosed. An example network element includes a first interface to connect to at least one of a plurality of electrical conductors disposed along a central axis of the cable. The plurality of electrical conductors includes a first twisted pair cable in a twisted configuration... Agent: Hanley, Flight & Zimmerman, LLC

20080037942 - Optical fiber telecommunications cable: An optical fiber telecommunications cable includes micromodules positioned with a longitudinal central cavity formed by a jacket. Two strength members are arranged longitudinally in the jacket and define a bending axis of the cable. Each strength member has an elongated oval cross-sectional shape with a height perpendicular to the bending... Agent: Summa, Allan & Additon, P.A.

20080037943 - Light pipe having a structure of enhancing an emission of a light:

20080037944 - Optical element and method for producing the same: An optical element is provided that includes a base substrate, a waveguide substrate, and a thin film layer that is provided between the base substrate and the waveguide substrate and that has a single-layer structure of a multilayer structure including a film containing Ta2O5 or Nb2O5 as a principal component.... Agent: Hamre, Schumann, Mueller & Larson P.C.

20080037945 - Cable payout systems and methods: A method for deploying a telecommunications cable includes obtaining a payout arrangement including a length of cable, selecting one of the first end and the second end of the length of cable to access; accessing the selected end of the length of cable; and pulling the selected end to unwind... Agent: Merchant & Gould PC

20080037946 - Multicable clamp: Embodiments of the invention include a closure apparatus for clamping a transmission cable, such as an optical fiber transmission cable, and one or more tether cables. The closure apparatus includes a first member and a second member, each with a first partially cylindrical segment that fits around at least a... Agent: Furukawa Electric North America, Inc. (formerly Fitel Usa Corp.)

20080037947 - Optical diffusion module: An optical diffusion module comprises a first diffusion structure comprising a plurality of convex portions and a plurality of concave portions arranged alternatingly, and a second diffusion structure comprising a plurality of convex portions and a plurality of concave portions arranged alternatingly. Light from a light source passes through the... Agent: Quintero Law Office, PC

20080031563 - Systems and methods for measuring signal phase shift caused by optical fibers: The present invention provides systems and methods for measuring signal phase shift caused by changes in fiber length.... Agent: Rothwell, Figg, Ernst & Manbeck, P.C.

20080031564 - Optical modulator: An optical modulator includes a signal electrode for application of modulation signals whereby light propagated over an optical waveguide is modulated, and bias electrodes for application of a bias voltage for controlling an operating point for the modulation signals. A buffer layer is provided between a substrate exhibiting electro-optical effect... Agent: Staas & Halsey LLP

20080031565 - Polarization sorter: A polarization sorter having an input, an output and a slowly varying region. The input has at least one input waveguide. The input waveguide supports at least one guided TE polarized mode of mode ranking mode-i-TE, and at least one guided TM polarized mode of mode ranking mode-j-TM. The output... Agent: Dunlap Codding & Rogers, P.C.

20080031570 - Planar lightwave circuit based wavelength selective switch: The present invention extends the concept of a standard array waveguide grating (AWG), which focuses each wavelength component launched via an input AWG to a Rowland circle inside a planar lightwave chip (PLC) where discrete waveguides are located, to one which focuses each wavelength component outside of the PLC chip... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20080031573 - Dual inner diameter ferrule device and method: A fiber optic ferrule includes a body extending from a first end to a second opposite end, with the body including an axial passage extending between the first and second ends. The axial passage includes a first diameter portion having a diameter of at least 125 microns, and a second... Agent: Merchant & Gould PC

20080031574 - Electrical connection between bidirectional optical subassembly and circuit board in optical transceiver: The present invention is to provide an optical transceiver that installs a bi-directional optical sub-assembly. The bi-directional sub-assembly is installed within the transceiver and fixed by the holder with a pair of legs put the sub-assembly therebetween. By press-fitting these legs into respective pockets provided in the side of the... Agent: Venable LLP

20080031576 - Embedded parametric monitoring of optoelectronic modules: An optoelectronic module for converting and coupling an information-containing electrical signal with an optical fiber including a housing having an electrical input for coupling with an external electrical cable or information system device and for transmitting and receiving information-containing electrical signals over such input, and a fiber optic connector adapted... Agent: Emcore Corporation

20080031566 - Optical circuit device: The present invention provide an optical circuit device having: an optical circuit; a polarization beam splitter/combiner for splitting an incoming light beam into two polarization beams and combining the two polarization beams into an outgoing light beam; a first optical waveguide and a second optical waveguide for connecting the optical... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080031567 - Optical semiconductor module: An optical semiconductor module includes an optical semiconductor element; an optical fiber optically coupled with the semiconductor element; a base having an upper surface and a lower surface; and a package. The package has a bottom plate on which the base is mounted, a front wall having a hole through... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080031568 - Optical switch and path switching method: An optical switch not having waveguide crossings, as in a matrix switch, enabling input/output path switching of N×N, and not increasing the optical loss or the size when the number of channels increases. The optical switch includes plural input ports 10 and plural output ports 17 and has a path... Agent: Sughrue Mion, PLLC

20080031569 - Optically addressed mems: Optically controlled micro-electromechanical systems (MEMS) is disclosed. In one embodiment, a MEMS device may include a rotatable mirror having an optical sensor that is in electrical communication with the rotatable mirror via an associated electrode. Electrical potential may be supplied to an appropriately configured optical sensor so that a variable... Agent: Trex Enterprises Corp.

20080031571 - High energy fiber optics laser delivery system with improved scrambling capabilties: The methods and apparatus of the present invention provide advantages for remote laser delivery systems that conduct high levels of light energy through a fiber optic cable to a target surface. Helical fiber optic mode scramblers in accordance with the present invention are an integral portion of a fiber optic... Agent: Georgetown Patent Services

20080031572 - Optical assemblies for free-space optical propagation between waveguide(s) and/or fiber(s): An optical apparatus is made by mounting segments of a GRIN optical medium on a substrate in at least one groove thereon. The GRIN segments are longitudinally spaced apart from one another on the substrate, and are arranged so that a free-space optical beam received through the distal end face... Agent: Christie, Parker & Hale, LLP

20080031575 - Optoelectronic module: An optoelectronic module having an optoelectronic device with a contact conductor and a connection carrier with a connection area. The contact conductor is electrically conductively and/or thermally conductively connected to the connection area. A local, delimited heating region is formed on the contact conductor or the connection carrier has a... Agent: Cohen Pontani Lieberman & Pavane LLP

20080031577 - Method and system for releasing a pluggable module: A method and system is disclosed for locking and releasing a module utilized in a transceiver system that includes a plurality of modules in close proximity with one another. The module is generally configured to include a handle with an associated cam formed in a first section of the module.... Agent: Workman Nydegger

20080031578 - Packaging for encasing an optical fiber in a cable: A cable component is provided that includes at least one optical fiber; and a plurality of shaped profiles having inner and outer surfaces such that the inner surfaces combine to from an enclosure for the at least one optical fiber.... Agent: Schlumberger Ipc Attn: David Cate

20080031579 - Waveguide, waveguide module, optical transmission device, and method of manufacturing waveguide: In a waveguide 10 including a substrate 1, a lower clad 2, an upper clad 3, and a core 4, the outline of a cross section perpendicular to the light propagating direction of the core 4 surrounded by the lower clad 2 has a shape curved with respect to the... Agent: Osha Liang L.L.P.

20080031580 - System and method for loose tube tight buffer indoor/outdoor optical fiber cable: A fiber cable having at least one fiber optic element, a water swellable powder, disposed on the fiber optic element and a tube surrounding the fiber element and the water swellable powder. The fiber optic element is in a loose non-coupled arrangement with respect to the inside of the tube... Agent: Sofer & Haroun LLP.

20080031581 - Optical fiber and method of manufacturing an optical fiber: The present invention relates to a method of manufacturing an optical fiber by carrying out one or more chemical vapor deposition reactions in a substrate tube, with the optical fiber exhibiting a low sensitivity to the hydrogen-induced attenuation losses at a transmission wavelength of 1550 nm. The present invention furthermore... Agent: Seed Intellectual Property Law Group PLLC

20080031582 - Method for manufacturing an optical fiber preform: A method for manufacturing a final optical fiber preform via overcladding of a primary preform having a cross section area is disclosed. The method includes at least one manufacturing step of the primary preform by deposit of an inner cladding and of a central core inside a tube of fluorine-doped... Agent: Summa, Allan & Additon, P.A.

20080031583 - Flexible optical waveguide film, optical transceiver module, multi-channel optical transceiver module, and method of manufacturing flexible optical waveguide film: A flexible optical waveguide film comprises: two waveguide cores; and a clad surrounding the two waveguide core, wherein a light entrance/exit part is disposed at one end of each of the two waveguide cores, the waveguide film having an optical path converting part comprising an air void located inside the... Agent: Oliff & Berridge, PLC

20080031584 - Apparatus and method for a singulation of polymer waveguides using photolithography: Singulating polymer waveguides made on a substrate using photolithography. A first polymer cladding layer is formed and patterned on a first surface of a substrate to form a plurality of bottom cladding elements. Each of the bottom cladding elements are structurally independent from the other bottom cladding elements on the... Agent: Beyer Weaver LLP

20080031585 - Fiber distribution hub with swing frame and wrap-around doors: A fiber distribution hub (FDH) provides an interface between an incoming fiber and a plurality of outgoing fibers. The FDH includes a cabinet, at least one door pivotably mounted to the cabinet, and a frame pivotably mounted within the cabinet. The doors wrap around the sides and the front of... Agent: Merchant & Gould PC