Optical waveguides inventions 09/08

20080232735 - Surface parallel modulator: SiGe quantum wells where the well material has a lowest conduction band energy minimum at k=0 (the Γ point of the first Brillouin zone) are provided. Quantum well structures that satisfy this condition have “Kane-like” bands at and near k=0 which can provide physical effects useful for various device applications,... Agent: Lumen Patent Firm, Inc.

20080232737 - Optical block reinforcing member, optical block and optical module: An optical module includes a circuit board, an optical element mounted on the circuit board, an electronic parts for driving the optical element, an optical block optically coupled with the optical element and adapted to be connected to an optical connector, wherein the optical block includes a protrusion including a... Agent: Mcginn Intellectual Property Law Group, PLLC

20080232736 - Optical functional circuit: The present invention provides an optical functional circuit where a holographic wave propagation medium is applied and a circuit property is excellent such as small transmission loss and crosstalk. The optical functional circuit where a plurality of circuit elements are formed on a substrate includes the wave propagation medium for... Agent: Workman Nydegger

20080232738 - Systems and methods for side-lobe compensation in reconfigurable optical add-drop multiplexers: Systems and methods to reduce passband side-lobes associated with WSS-based ROADMs by applying a filter on each channel are provided. In an exemplary embodiment, a comb filter, such as a thin film filter or an interleaver, is utilized. Additionally, the present invention provides systems and methods to adaptively control amplifier... Agent: Clements Bernard Miller

20080232739 - Tunable dispersion and dispersion slope compensator in optical telecommunication system: The present invention relates to a tunable dispersion and dispersion slope compensator based on an optical fiber grating in an optical communication system. The compensator includes: a first disk having a ring shape, wherein the first disk is configured to rotate; a second disk installed at an inner space of... Agent: Jones Day

20080232740 - Efficient light injector: A light injector includes a tapered solid light guide having a light input end, an opposing light output end, and a total internal reflection surface defining a longitudinal outer surface there between. The light input end includes an aperture extending into the tapered solid light guide defined by an aperture... Agent: 3m Innovative Properties Company

20080232741 - Connector receptacle for use with optical elements: A connector receptacle comprises a housing having a forward mating end and a rear end, with an internal surface provided within the housing facing toward the rear end. The internal surface comprises at least a one alignment structure to engage and thereby maintain one or more optical elements in horizontal... Agent: Molex Incorporated

20080232742 - Ferrule holder and associated fiber optic connector having anti-withdrawal and anti-rotation features: The present invention relates generally to ferrule holders and associated fiber optic connectors used in optical communications networks, optical devices, and the like to optically couple optical fibers. More specifically, the present invention relates to a ferrule holder and an associated fiber optic connector having improved anti-withdrawal and anti-rotation features,... Agent: Corning Cable Systems LLC

20080232743 - Drop terminal with anchor block for retaining a stub cable: The drop terminal includes a plurality of fiber optic adapters having outer connector ports that are accessible from outside the drop terminal. The drop terminal receives a fiber optic cable having a plurality of optical fibers. Fiber optic connectors are positioned at the ends of the optical fibers. The fiber... Agent: Merchant & Gould PC

20080232744 - Multifiber ferrule with precision bumpers and methods for making the same: A multifiber (MF) ferrule produced using a ferrule molding insert that is jig ground in order to improve the tolerance on the bumper height of a molded ferrule and the surface finish on the region of interest (ROI), thus improving manufacturing yields.... Agent: Corning Cable Systems LLC

20080232745 - High-temperature pressure sensor and method of assembly: A method for assembling a Fabry-Perot interferometer includes depositing a first metal layer on an end portion of a ferrule, depositing a second metal layer on a back portion of a die, placing the first metal layer and the second metal layer in contact with each other with respective first... Agent: General Electric Company Global Patent Operation

20080232746 - 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

20080232747 - Optical axis adjusting method, optical module producing method, optical axis adjusting apparatus, and optical module: An optical axis adjusting method for adjusting a tilt angle of an optical axis in two regions optically coupled in a holding member includes the steps of: roughly adjusting the optical axis by irradiating a first region on the holding member with a laser beam; and finely adjusting the optical... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20080232748 - Fibre-optic package and method of making the same: A fibre-optic package comprises at least two fibre optic devices or components (102, 104, 106, 118, 120, 122, 124) coupled together by fused-fibre coupling. The package typically comprises two or more fibre optic accelerometers, and may be of reduced size compared to fibre-optics packages of the prior art, due to... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20080232749 - Optical fiber cable: An optical fiber cable maintains an outer jacket, at least one optical fiber tube within the jacket and for each optical fiber tube, four optical fibers, arranged in a substantially squared arrangement. The optical fibers are linearly arranged along the length of the cable. The optical fibers are loosely arranged... Agent: Sofer & Haroun LLP.

20080232750 - Optical fiber ribbon: An optical fiber ribbon includes a plurality of optical fibers, each includes a glass optical fiber coated with a fiber coating, that are arranged in parallel, and a ribbon coating that coats the optical fibers arranged in parallel. The optical fiber ribbon has a thickness equal to 300 μm or... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080232751 - Optical fiber faceplates including convergent constituent imaging conduits and tiled imaging arrays incorporating the same: An imaging module includes an optical fiber faceplate with an image-input face, a planar image-output face, and a plurality of adjacently fused, internally reflecting imaging conduits extending between the image-input and image-output faces. The constituent imaging conduits extend along conduit axes that mutually converge in a direction that such that... Agent: Louis J Franco Law Office Of Louis J Franco

20080232752 - Marked body and manufacturing method thereof: To provide a marked body that can bear the temperature of heat treatment that is required for a PLC. A lower clad layer, a marked body, a cylindrical part, a buried layer, and an upper clad layer are laminated on a silicon substrate. The marked body is formed with a... Agent: Nec Corporation Of America

20080232753 - Optical waveguide and method of manufacturing the same: There is provided an optical waveguide including: a waveguide core through which light propagates; a cavity that is present inside the waveguide core so as to be open at least one end in the thickness direction of the waveguide core; a layer-form first cladding having a lower refractive index than... Agent: Sughrue Mion, PLLC

20080232754 - Electromagnetic radiation amplification systems based on photonic gratings: Various embodiments of the present invention are related to electromagnetic wave amplification systems employing photonic gratings. In one embodiment of the present invention, an electromagnetic radiation amplification system comprises a photonic grating and a pump source. The photonic grating is configured with a planar periodic lattice of holes in a... Agent: Hewlett Packard Company

20080232756 - Multiple-core planar optical waveguides and methods of fabrication and use thereof: A multiple-core optical waveguide comprises: a substrate; lower and upper waveguide core layers; a waveguide core between the upper and lower waveguide core layers; upper and lower cladding; and middle cladding between the upper and lower waveguide core layers substantially surrounding the waveguide core. Each of the lower, middle, and... Agent: Christie, Parker & Hale, LLP

20080232755 - Photonic crystals based on nanostructures: The present invention provides for photonic crystals comprising nanostructures grown on a conducting or insulating substrate, and a method of making the same. The photonic crystals can be used in components such as artificial photonic crystals for photonic devices and circuits.... Agent: Fish & Richardson P.C.

20080232757 - Assemblies and methods for drop cable: Assemblies and methods for installing and maintaining aerial fiber optic cable are provided. Embodiments include a cable long enough to extend from two elevated support points and to provide enough slack for at least a portion of the cable to extend along the ground. The cable includes a wrapped portion... Agent: Verizon Patent Management Group

20080232758 - Optical module: An optical module which can be inserted into and removed from a cage, the optical module includes a lock pin inserted into a lock hole provided in the cage and engaging the cage and the optical module with each other in a state where the optical module is inserted into... Agent: Staas & Halsey LLP

20080232759 - Spool asssembly for absorbing jumper slack: A spool assembly includes a mount and a spool. The mount has first and second opposite surfaces. The first surface of the mount includes an adhesive covered by a removable cover. The spool is supported on the second surface of the mount. The mount with the spool is attachable to... Agent: Brooks Kushman P.C.

20080232760 - System and method for determining fiber characteristics: A system is provided for characterizing optical fibers carrying signal traffic. The system includes a transmitter, a variable optical attenuator (VOA), a receiver, and a computing device. The transmitter propagates an optical test signal along a channel of a fiber pathway. The VOA adjusts the attenuation of the optical test... Agent: Verizon Patent Management Group

20080232761 - Methods of making optical waveguide structures by way of molecular beam epitaxy: The invention relates to methods of making optical waveguide structures by way of molecular beam epitaxy (MBE). The method comprises the steps of: (1) providing a single crystal substrate in an ultra-high vacuum (UHV) environment, wherein the single crystal substrate has a first index of refraction; (2) heating the single... Agent: Thomas Loop

20080232762 - Organometallic polymer material: Characteristically, the organometallic polymer material contains an organometallic polymer having an -M-O-M- bond (M indicates a metal atom), a metal alkoxide having a single hydrolyzable group and/or its hydrolysate and an organic polymer having a urethane bond and a methacryloxy or acryloxy group, and preferably further contains an organic anhydride... Agent: Ndq&m Watchstone LLP

20080226215 - Optical waveguide devices: The present invention provides an optical waveguide device having a configuration such that the optical waveguide is folded back on an end area of the optical waveguide substrate to widen the modulation band. The optical waveguide device includes a substrate body made of an electro-optical material, optical waveguide, and modulation... Agent: Burr & Brown

20080226216 - Optical devices with integral isolators: An isolator assembly, for use internally within a multi-port optical switch, and which operates on a preselected number of input port channels. The assembly incorporates a sequence of a birefringent crystal with a half wave plate on part of its output face acting as a linear polarizer, a 45° Faraday... Agent: Darby & Darby P.C.

20080226217 - Photonic crystal structure sensor: An acoustic sensor and a method of fabricating an acoustic sensor are provided. The acoustic sensor includes at least one photonic crystal structure and an optical fiber having an end optically coupled to the at least one photonic crystal structure. The acoustic sensor further includes a structural portion mechanically coupled... Agent: Knobbe Martens Olson & Bear LLP

20080226218 - Collision detection optical fiber sensor: An optical fiber 1 includes a core 11 and a cladding material 12. In a collision detection optical fiber sensor 100, a plurality of linear members 2 and 3 are twisted around an outer periphery of the cladding material 12 of the optical fiber 1. An elastic member 6 of... Agent: Scully Scott Murphy & Presser, PC

20080226221 - Integrated reflector for planar lightwave circuits: A reflector chip of the present invention integrates a planar lightwave circuit (PLC) waveguide wafer and an active component, such as a photo-detector or laser, e.g. vertical cavity surface emitting laser. Typically, the PLC waveguide wafer includes a waveguide core region bound by upper and lower cladding layers. An end... Agent: Teitelbaum & Maclean

20080226223 - Method of manufacturing a semiconductor device: A semiconductor device has a two-dimensional slab photonic crystal structure in which a substrate supports a sheet-like slab layer including, sequentially stacked, a lower cladding layer, an active layer, and an upper cladding layer. A periodic refractive index profile structure, in surfaces of the stacked layers, introduces a linear defect... Agent: Leydig Voit & Mayer, Ltd

20080226224 - Optical junction apparatus and methods employing optical power transverse-transfer: An optical apparatus comprises an optical device formed on a device substrate, a first optical waveguide formed on the substrate or on the optical device, and a second, mechanically discrete optical waveguide assembled with the device substrate, optical device, or first optical waveguide. The first optical waveguide is arranged for... Agent: Christie, Parker & Hale, LLP

20080226222 - Opto-electric bus module and method of manufacturing the same: Provided are an opto-electric bus module and a method of manufacturing the opto-electric bus module. The opto-electric bus module includes an opto-electric interconnection unit where a concave-shaped micro structure is formed on a lower surface of a polymer structure and an optical bench where a convex-shaped micro structure is formed... Agent: Rabin & Berdo, PC

20080226220 - Zinc oxide diodes for optical interconnections: The present disclosure includes methods, devices, and systems for zinc oxide diodes for optical interconnections. One system includes a ZnO emitter confined within a circular geometry in an oxide layer on a silicon substrate. An optical waveguide is formed in the oxide layer and has an input coupled to the... Agent: Brooks, Cameron & Huebsch , PLLC

20080226219 - Zinc oxide optical waveguides: The present disclosure includes methods, devices, and systems having zinc oxide waveguides for optical signal interconnections. One optical signal interconnect system includes an oxide layer on a semiconductor substrate. A ZnO waveguide can be provided in the oxide layer and connected to a silicon detector to receive optical signals having... Agent: Brooks, Cameron & Huebsch , PLLC

20080226225 - Light activated optical switch that includes a piezoelectric element with layers of piezoelectric material having different piezoelectric characteristics: A light activated optical switch has a piezoelectric element that has at least two layers of piezoelectric material with each layer having different piezoelectric characteristics. The piezoelectric characteristics of the layers are selected to enhance the performance of the piezoelectric element and ultimately to enhance the performance of the optical... Agent: Wilson & Ham

20080226226 - Simplified optical switch: An optical switch to be mounted between first optical lines, each including one or more optical channels having a rank within their optical line, and second optical lines, each including one or more optical channels having a rank within their optical line. The switch includes a selection device with at... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080226227 - Privacy in an optical fiber link: Methods and apparatuses are described for providing privacy features on an optical fiber link. By providing such features, the effects on the optical fiber link by certain outside influences, such as acoustical waves, may be prevented from being remotely monitored from a position outside the link.... Agent: Banner & Witcoff, Ltd.

20080226230 - Optical device: An optical device is provided to prevent a dicing blade form being clogged when a wafer is cut by means thereof. Further, an optical device is provided to the present invention can prevent unnecessary expansion of a resin used in the optical device. The present invention relates an optical device... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080226228 - Optical system connection structure, optical component, and optical communication module: An optical system connection structure, includes a ferrule, an optical fiber inserted into the ferrule, an optical component which converts light paths of a first optical signal outputted from the optical fiber and a second optical signal which has a wavelength different from the first optical signal and is inputted... Agent: Mcginn Intellectual Property Law Group, PLLC

20080226229 - Soa array optical module: In an SOA array optical module, the central axis of a beam output from each intra-SOA waveguide is oblique by 22.3 degrees to a normal to an end face of an SOA array on the output side (the same applies to the input side) of the SOA array having intra-SOA... Agent: Staas & Halsey LLP

20080226231 - Multi-channel optical rotary coupling of low reflectance: 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 second collimator arrangement being supported to be rotatable relative to the first collimator arrangement about a rotation axis. At least one derotating optical element is... Agent: Daffer Mcdaniel LLP

20080226232 - Optical device with reduced temperature dependence: Optical apparatus with improved center wavelength temperature stability. In an embodiment, an AWG has a plurality of slots inserted along the optical paths. The slots contain one or more compensation materials which collectively correct for an order Q temperature dependency of the AWG base material. Q>=2 or the number of... Agent: Gemfire C/o Haynes Beffel & Wolfeld LLP

20080226233 - Optical coupling component for use in an optical communication connector and an optical connector using such optical coupling component: An optical coupling component for use in an optical communication connector is provided which comprises a pair of columnar sending side and receiving side optical functional sections and a joint section integrally molded with the optical functional sections and made from the same material as the material of the optically... Agent: Gallagher & Lathrop, A Professional Corporation

20080226234 - Fiber optic connector with protective cap: A fiber optic connector assembly includes a fiber optic connector having an outer housing with a connector interface end, a connector interface housing mounted at the connector interface end, and a retention nut rotatably mounted about the outer housing. The connector interface housing has a first end supporting a ferrule... Agent: Merchant & Gould PC

20080226235 - Fiber optic adapter and connector assemblies: A fiber optic assembly comprising an adapter assembly defining an internal cavity, a first end for a receiving a first fiber optic connector, and a second end for receiving a second fiber optic connector, wherein the first and the second fiber optic connectors are dissimilar. A fiber optic connection comprising... Agent: Corning Cable Systems LLC

20080226236 - Remote grip optical fiber connector: An optical connector for terminating an optical fiber comprises a housing configured to mate with a receptacle and a collar body disposed in the housing. The collar body includes a ferrule securely disposed in an opening of the collar body, the ferrule including a central bore that defines an axis,... Agent: 3m Innovative Properties Company

20080226237 - Single boot for duplex fiber optic connectors: An apparatus for holding a first fiber optic connector and a second fiber optic connector includes a housing configured to secure the first fiber optic connector and the second fiber optic connector at a first end and a strain relief boot connected to a second end of the housing. The... Agent: Pepper Hamilton LLP Firm 21269

20080226238 - Optical module holder, optical module, and optical connector: When an optical element 11 is adhered to an optical element attaching section 5 by an ultraviolet curable adhesive 7 through ultraviolet rays being irradiated onto the ultraviolet curable adhesive 7 applied onto a predetermined application surface 5a on an inner circumferential surface of the optical element attaching section 5... Agent: Quinn Emanuel Urquhart Oliver & Hedges, LLP Koda/androlia

20080226239 - Optical transceiver with mechanism to dissipate heat efficiently without affecting optical coupling condition: A heat dissipating mechanism from an optical assembly to housing without stressing the assembly against the housing is disclosed. The optical assembly has a box-shaped portion to install the optical device and the heat generating device. Among six walls of the box-shaped portion, rear and one side wall are provided... Agent: Venable LLP

20080226240 - Data communication cable comprising filling matrix and method of fabrication: A data communication cable can comprise multiple pairs of twisted conductors. A jacket that extends along the outside surface of the cable can define a longitudinal core, internal to the cable. The conductor pairs can be disposed in the core of the cable along with a foam matrix or a... Agent: King & Spalding LLP

20080226241 - Optical fiber and optical fiber ribbon, and optical interconnection system: An optical fiber, made of silica-based glass, comprising a core and a cladding. The optical fiber having a mode field diameter of 6.5 μm or larger at a wavelength of 1300 nm, transmitting light with a wavelength of 1250 nm in a single mode, and having a bending loss of... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080226242 - Method of generating supercontinuum optical radiation, supercontinuum optical radiation source, and use thereof: A method of generating supercontinuum optical radiation, the method comprising: (a) providing an optical wave-guide (22), said optical waveguide exhibiting a dispersion characteristic of guided optical radiation, said dis-persion characteristic comprising: (i) a first dispersion parameter (β21) at a first wavelength (λ1), (ii) a second dispersion parameter (β22) at a... Agent: Buchanan, Ingersoll & Rooney PC

20080226243 - Nonlinear optical signal-treating apparatus: A nonlinear optical signal-treating apparatus can suppress the distortion of pulse light to be inputted into an optical fiber to an allowable level or less. The apparatus comprises a pulse light source for outputting first pulse light, a first optical fiber, a second optical fiber that is spliced with the... Agent: Mcdermott Will & Emery LLP

20080226244 - Compound, polymerizable composition, optical device, and method for producing refractive index profile optical device: n

20080226245 - Curable resin composition for light guide formation, curable dry film for light guide formation, cured resin and light guide: The present invention provides a curable resin composition for forming an optical waveguide, the composition comprising a hydrolyzable silyl-containing silane-modified epoxy resin (A) having an average of at least one hydrolyzable silyl group and an average of at least one epoxy group per molecule; and a resin (B) having, per... Agent: Kratz, Quintos & Hanson, LLP

20080226246 - Optical fiber and optical-fiber transmission line: An optical fiber transmits at least a signal light having a wavelength of 1550 nanometers in a fundamental propagation mode. The optical fiber has, a cutoff wavelength equal to or longer than 1550 nanometers, a wavelength dispersion of 4 ps/nm/km to 7 ps/nm/km in the fundamental propagation mode at the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080226247 - Waveguide for thermo optic device: A waveguide and resonator are formed on a lower cladding of a thermo optic device, each having a formation height that is substantially equal. Thereafter, the formation height of the waveguide is attenuated. In this manner, the aspect ratio as between the waveguide and resonator in an area where the... Agent: Schwegman, Lundberg & Woessner/micron

20080226248 - Process for producing optical device: The present invention provides a method of producing an optical element without the need for high vacuum, unlike the thin film deposition methods, and without using a molten salt. More specifically, the invention provides a method of producing an optical element comprising applying a paste containing at least one compound... Agent: Posz Law Group, PLC

20080226251 - Apparatus for optical fibre installation by fluid drag: An apparatus for installing, by the blown fibre technique, at least one optical fibre or optical fibre unit (5) into a tube or tubular passageway (6), comprising a length of optical fibre/optical fibre unit on a reel or cartridge (8) which is contained within a pressure vessel (2), the length... Agent: Whyte Hirschboeck Dudek S C

20080226252 - Fiber access terminal: A fiber access terminal for mounting to the end of a fiber distribution cable and configured to be extended through a buried conduit. The fiber distribution cable may include a plurality of optical fibers and enters a housing of the terminal through a base. The terminal also includes a plurality... Agent: Merchant & Gould PC

20080226250 - Fiber optic categorization and management tray: A fiber optic splice organizer stores optical fiber splices and sufficient slack to permit the fibers to be readily separated, such as for reorganization or to remake a splice. Multiple hinges connect a plurality of fiber trays side by side to provide pivotable connections between trays. A flat orientation of... Agent: Robert Frohwerk

20080226249 - Optical device: An optical device comprising an enclosure having a wall member defining a cavity and a sealable fibre entry portion, an optical component located within the cavity and at least two optical fibres connected to the optical component and extending, substantially adjacent one another, through the entry portion. The invention also... Agent: Baker & Daniels LLP

20080219614 - Semiconductor optical motulator: Semiconductor optical modulator devices exhibiting improved chirp characteristics are constructed from a Mach-Zehnder structure having resonators positioned within each arm and a number of phases shifters positioned within the arms, and/or resonators.... Agent: Brosemer, Kolefas & Associates, Llc - (lucent)

20080219616 - All polymer optical waveguide sensor: The present invention is directed to an evanescent field induced optical sensor of a transparent polymer substrate coated with a thin transparent polymer waveguide for use as biosensor for detecting biological molecules, wherein the transparent polymer waveguide has a thickness of ≧0.10 μm and ≦0.50 μm and a refractive index... Agent: Philips Intellectual Property & Standards

20080219615 - Photonic crystal sensors with intergrated fluid containment structure: Photonic crystal (PC) sensors, and sensor arrays and sensing systems incorporating PC sensors are described which have integrated fluid containment and/or fluid handling structures. Sensors and sensing systems of the present disclosure are capable of high throughput sensing of analytes in fluid samples, bulk refractive index detection, and label-free detection... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20080219618 - Methods of making and operating a fiber optic sensing device: In accordance with one exemplary embodiment the invention provides a multi-parameter fiber optic sensing system with an aperiodic sapphire fiber grating as sensing element for simultaneous temperature, strain, NOx, CO, O2 and H2 gas detection. The exemplary sensing system includes an aperiodic fiber grating with an alternative refractive index modulation... Agent: General Electric Company Global Research

20080219617 - Plastic optical sensor: An optical fiber sensor comprising a housing having a cavity defined therein; at least two plastic optical fibers disposed such that cleaved ends of the respective fibers are located opposite each other within the cavity; a light source coupled to one of the fibers; and a detector coupled to the... Agent: Christie, Parker & Hale, LLP

20080219619 - Fiber lens assembly for optical device: A fiber lens assembly is configured to optically couple an optical fiber to a signal processing device having free-space optical elements. The fiber lens assembly includes a diverging lens having a focal length that may be around 2 to 6 times the diameter of the optical fiber core. Sensitivity of... Agent: Patterson & Sheridan, LLP

20080219620 - Achieving gaussian outputs from large-mode-area-higher-order mode fibers: A mode conversion technique to convert higher-order-mode into a nearly fundamental Gaussian shape by using a beam expander is developed and is particularly useful in high-power lasers and amplifiers. By using a beam expander between a transmitted fiber and a conventional mode conversion system, the strict lateral tolerance requirement can... Agent: Furukawa Electric North America, Inc. (formerly Fitel Usa Corp.)

20080219621 - Point-to-point optical fibre link: Point-to-point link for the transmission of digital signals includes two opto-electronic conversion apparatuses and an optical cable including at least one optical fiber having two terminal portions, each opto-electronic conversion apparatus including an opto-electronic device optically coupled to a respective terminal portion between the two terminal portions of the at... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080219622 - Optical fibre coupling system: An optical fibre coupling structure comprising an optical fibre having an elongate input surface and shaped so that the diameter of the core of the fibre reduces in one dimension away from the input while increasing in the other dimension away from the input to form respective convergent and divergent... Agent: Gauthier & Connors, LLP

20080219623 - Star coupler for optical networks, in particular for optical data buses in motor vehicles: In order to achieve an increased reliability in respect of failure in optical networks, the invention provides a passive star coupler comprising a multiplicity of at least three optical waveguides as arms of the star coupler, which are combined at one end, and comprising, adjacent to the combined end, a... Agent: Demont & Breyer, Llc

20080219624 - Fiber optic connector with double-clad stub fiber: A fiber optic connector having a double-clad specialty optical stub fiber with a deep index core-to-inner-cladding profile and a raised index outer-cladding profile. The double-clad optical stub fiber abuts against a single-clad field optical fiber of the single-mode type to form an interface across which the primary mode traverses without... Agent: Panduit Corp.

20080219625 - Methods and devices for tracing fiber optic cable: Exemplary embodiments include a tracing clip for a fiber optic cable including: a clip body including an inner and an outer surface; a metal clip disposed on the outer surface; a metal tooth disposed on the inner surface, wherein the metal clip tooth connects to a metal element extending substantially... Agent: Cantor Colburn LLP - Bellsouth

20080219626 - Expanded beam connector and expanded beam optoelectronic device: The fiber optic connector includes a housing, a first lens, a second lens, a first ferrule, a second ferrule, a first optical fiber, a second optical fiber, an o-ring, and a clip. The housing includes a collar, a mounting portion, and a groove formed in the mounting portion. The first... Agent: Karl D. Kovach Emerson Network Power Connectivity Solutions, Inc.

20080219627 - Fiber optic cable with enhanced saltwater performance: A fiber optic cable can inhibit water, that may inadvertently enter the cable, from damaging the cable's optical fibers. The fiber optic cable can comprise a buffer tube defining an interior volume extending along the fiber optic cable. Optical fibers can be disposed in the interior volume of the buffer... Agent: King & Spalding LLP

20080219628 - Photonic funnels and anisotropic waveguides for subdiffraction light compression and pulse management at the nanoscale: The present invention provides an apparatus for propagating electromagnetic radiation of a selected vacuum wavelength beyond the diffraction limit. The apparatus comprises a waveguide core and a cladding disposed about the core. The waveguide core may include a material with an anisotropic dielectric permittivity, with the optical axis of the... Agent: Dann, Dorfman, Herrell & Skillman

20080219629 - Modified-output fiber optic tips: A laser handpiece is disclosed, including a shaped fiber optic tip having a side-firing output end with a non-cylindrical shape. The shaped fiber optic tip can be configured to side-fire laser energy in a direction away from a laser handpiece and toward sidewalls of a treatment or target site.... Agent: Stout, Uxa, Buyan & Mullins LLP

20080219634 - High density optical fiber distribution frame with modules: A fiber optic telecommunications frame is provided including termination modules positioned on left and right sides of the frame. The frame further includes left and right vertical cable guides. The frame includes a horizontal passage linking the left and right panels and the cable guides. The termination modules hold fiber... Agent: Attn: Steven C. Bruess Merchant & Gould P.c.

20080219630 - Radius limiter and arrangement: A cable radius limiter having a radius limiting surface that prevents damage to cables due to excessive bending. The cable radius limiter includes mounting structure and cable retaining structure arranged such that the limiter can be operably oriented and mounted to a planar mounting surface in a number of mounting... Agent: Merchant & Gould Pc

20080219632 - Telecommunication rack unit tray: An interface panel that mounts to a telecommunications rack. The interface panel including a splicing arrangement and a splitter module. The interface panel further including a fixed tray to which each of the splicing arrangement and the splitter module mounts. The splicing arrangement and the splitter module each having a... Agent: Merchant & Gould Pc

20080219631 - Universal bracket for mounting a drop terminal: The present disclosure relates to a drop terminal mounting system for use in a fiber optic network. The drop terminal mounting system includes a drop terminal having a drop terminal housing to which a plurality of fiber optic adapters are mounted. The fiber optic adapters have exterior ports that are... Agent: Merchant & Gould Pc

20080219633 - Wall mount distribution arrangement: A wall-mount distribution arrangement including a termination arrangement, a splicing arrangement, and a splitter arrangement. Each of the termination, splicing, and splitter arrangements being located within an interior of a wall-mount enclosure of the distribution arrangement. The arrangement further including a pivoting panel located within the interior of the wall-mount... Agent: Merchant & Gould Pc

20080219635 - Curable liquid resin optical fiber upjacket composition: The present invention provides a curable liquid resin composition which, when cured, exhibits excellent removability from an adjacent coating layer and is suitable for an optical fiber upjacket material. The curable liquid resin optical fiber upjacket composition comprising a urethane (meth)acrylate or a (meth)acrylate oligomer, a reactive diluent, a polymerization... Agent: Nixon & Vanderhye, Pc

20080212913 - high speed semiconductor optical modulator: The present invention provides an optical waveguide modulator. In one embodiment, the optical waveguide modulator includes a semiconductor planar optical waveguide core and doped semiconductor connecting paths located adjacent opposite sides of the core and capable of applying a voltage across the core. The optical waveguide core and connecting paths... Agent: Hitt Gaines, PC Alcatel-lucent

20080212914 - Transparent conducting components and related electro-optic modulator devices: New electro-optic (EO) phase modulator devices and geometries, as can be constructed using a transparent conductive component.... Agent: Reinhart Boerner Van Deuren S.c. Attn: Linda Kasulke, Docket Coordinator

20080212915 - Nested modulator: A nested modulator, including: a substrate 20 made of a material having electro-optic effects; an optical waveguide formed on the substrate; and a modulating electrode for modulating light waves which are guided through the optical waveguide, wherein the optical waveguide has a main Mach-Zehnder waveguide 1 and sub-Mach-Zehnder waveguides 2... Agent: Chapman And Cutler

20080212916 - Polarization maintaining fiber pigtail assembly: The invention provides a fiber pigtail assembly wherein a polarization maintaining fiber is soldered directly to a mounting pad without a sleeve or a ferrule therebetween. A portion of the polarization maintaining fiber near a fiber end is embedded in a vertical slow axis orientation within an asymmetrical solder ball... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20080212918 - Fiber optic sensor device for measuring chromophoric compounds in biological fluid: A fiber optic sensor device for detecting the presence of a chromophoric compound in a biological fluid is disclosed. The fiber optic sensor device includes at least one fiber optic member having an unclad portion, the fiber optic member having a proximal end and a distal end for transmitting light... Agent: The Johns Hopkins Universityapplied Physics Labora Office Of Patent Counsel

20080212917 - Fiber optic temperature and pressure sensor and system incorporating same: A sensing system including a sensor having an enclosure that defines a chamber, a fiber optic segment extending from outside the enclosure into the chamber, and a sequence of optical processing elements within the chamber. The elements include a fiber Bragg grating, a polarizer, a side hole fiber, and a... Agent: Schlumberger Reservoir Completions

20080212920 - Optical circuits and circuit elements and methods of forming same: Circuits and circuit elements adapted to function at optical or infrared frequencies are made from plasmonic and/or nonplasmonic particles disposed on a substrate, where the plasmonic and nonplasmonic particles have respective dimensions substantially smaller than a wavelength of an applied optical or infrared signal. Such particles are deposited on a... Agent: Woodcock Washburn LLP

20080212921 - Optical interconnect devices and structures based on metamaterials: Improved optical interconnect devices, structures, and methods of making and using the devices and structures are provided herein. The optical interconnect devices, which can be used to connect components or route signals in an integrated-circuit or circuits, generally include an optical element having a metamaterial with a negative index of... Agent: Troutman Sanders LLP

20080212919 - Optical waveguide chip and method of manufacturing the same: The present invention relates to an optical waveguide chip, etc., having a structure for effectively avoiding or suppressing peeling of an optical waveguide layer in a process of cutting a wafer. The optical waveguide chip comprises a substrate having a main surface, and an optical waveguide layer formed on the... Agent: Drinker Biddle & Reath (dc)

20080212923 - Plasmon gate: A variety of structures, methods, systems, and configurations can support plasmons for logic.... Agent: Searete LLC Clarence T. Tegreene

20080212922 - Switchable optical element: A switchable optical element has an optical axis. The element includes a chamber, a wave front modifier having a face defining an interior surface of the chamber (the face extending transverse the optical axis), a first fluid and a second fluid. The fluids are immiscible and in contact over an... Agent: Philips Intellectual Property & Standards

20080212924 - Coupling optical system, optical element and optical pickup apparatus: The present invention relates to a coupling optical system, an optical element, and an optical pickup apparatus. A coupling optical system is provided for use in an optical pickup apparatus and is arranged between a light source and an objective lens of the optical pickup apparatus. The coupling optical system... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080212925 - Fiber bragg grating and manufacturing method therefor: The present invention provides an optical fiber for a fiber Bragg grating having a high reliability and superior performance. An optical fiber according to the present invention has a glass film containing micro porous bodies formed on the circumference of the optical fiber having a photosensitive core or both of... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080212926 - Optical fiber connector assembly: The present invention is directed to an optical fiber (12,14) connector (10) comprising a longitudinally extending body (16), said body (16) comprising a first end (18) and a second end (20), and said body having a conduit (22) extending from said first end (18) to said second end (20), and... Agent: Bereskin And Parr

20080212927 - Optical cable for communication: An optical cable for communication includes at least one micromodule, wherein the micromodule is blocked with respect to the propagation of water. The at least ones micromodule includes at least one optical fiber, a retaining element for housing the at least one optical fiber, and a thixotropic filling compound arranged... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080212928 - Cabinet including optical bulkhead plate for blown fiber system: A cabinet is provided for managing the connections between a feeder cable and a distribution cable wherein the distribution cable is a blown optical fiber. The cabinet includes shelves for holding splices between the feeder cable and the distribution cable. The shelves also include microduct holders for holding each of... Agent: Merchant & Gould PC

20080212929 - Splice holder device: A splice holder device includes a tray mountable in a telecommunications closure, the tray including a splice mounting mechanism configured to receive a splice device. The splice holder device also includes first and second fiber clamps disposed on the tray, wherein the first and second fiber clamps are each configured... Agent: 3m Innovative Properties Company

20080212930 - Holder for optical fiber ferrule end face grinding apparatus: There is provided a holder for an optical fiber ferrule end face grinding apparatus that can make good use of a grinding film, in which the number of optical fiber ferrules held by the holder is greatly increased. The holder includes a holder plate including a plurality of insertion holes... Agent: Blank Rome LLP