Optical waveguides inventions 04/06

20060088239 - Method for controlling an optoelectronic component: A method for controlling an optoelectronic component that includes two waveguides. The refractive index of the first waveguide is changed periodically with a first control signal, the amplitude of which is changed between a first amplitude level and higher second amplitude level. The refractive index of the second waveguide is...

20060088240 - Optical deflection element and optical switch: An optical deflection element is configured to include a prism electrode provided on an optical waveguide, a first photonic crystal structure provided forward of the prism electrode in a light traveling direction being a position after a light passes through the prism electrode, a control electrode provided to confront a...

20060088241 - Compact transition in layered optical fiber: The present disclosure is directed to an optical device including a circuit board, an optical network and a lens kit. The circuit board has a mounting surface, and the optical fiber network is coupled to the circuit board opposite the mounting surface. The optical network includes two or more optical...

20060088242 - Optical switches with uniaxial mirrors: Described are various optical, opto-electrical and electrical components and subsystems. Micro-Electro-Mechanical Systems (MEMS) actuators that employ electrostatic combs adjust uniaxial, unidirectional or bidirectional mirrors between two basic positions with optical power control, one position for each of two switch configurations. Limiting the switching mirrors to two positions limits flexibility, but...

20060088243 - High-power fused collimator and associated methods: A method for making a high-power fused collimator, and a fused collimator made thereby, are provided. A fused collimator is provided that includes an end of a stripped end portion of an optical fiber fused to a proximal face of a silica lens. In an embodiment, a toroidal element is...

20060088244 - Planar lenses for integrated optics: A planar lenses for integrated optics applications, in particular for use in optical touch screen sensors are disclosed. The disclosed planar lenses include a slab waveguide and an optical waveguide, preferably formed in unitary fashion, wherein the slab waveguide has a curved end face to focus light into or out...

20060088245 - Signal processing system: A signal processing system (10) has a plurality of optical fibres (40, 42, 43) with their one ends (40) mounted in an array board (41) to receive electromagnetic radiation. A coupler (54) interconnects the other ends of the optical fibres (42, 43) in parallel such that electromagnetic radiation is first...

20060088246 - Multi-wavelength optical transceiver module, and multiplexer/demultiplexer using thin film filter: Provided are a multi-wavelength optical transceiver module and a multiplexer/demultiplexer using a thin film filter. The multi-wavelength optical transceiver module includes: a PLC platform, on which a predetermined optical waveguide unit is formed and an optical transmitter is mounted; an optical fiber coupled to one side of the PLC platform...

20060088248 - One-piece fiber optic receptacle: A one-piece fiber optic receptacle is provided for aligning and optically connecting a plug ferrule with a back-side ferrule of like configuration. The fiber optic receptacle includes a receptacle housing defining an internal cavity opening through an external end and an opposed internal end, an alignment sleeve disposed within the...

20060088247 - One-piece fiber optic receptacle having chamfer and alignment ribs: A one-piece fiber optic receptacle is provided for aligning and optically connecting a plug ferrule with a back-side ferrule of like configuration. The fiber optic receptacle includes a receptacle housing defining an internal cavity opening through an external end and an opposed internal end, an alignment sleeve disposed within the...

20060088249 - Optical connector having a removable adapter: In an optical connector for connecting an optical fiber to a mating object having a pair of guide members, the optical connector includes a connector body fixed to the optical fiber and an adapter removably attached to the connector body. The adapter has a positioning groove for positioning an end...

20060088250 - Collet assembly with ribbon fiber holder: A breakout device that separates and protects individual fibers from a ribbon fiber cable. The breakout device includes a collet assembly that secures the ribbon fiber cable in the device. The collet assembly includes a base having a tapered internal bore, a collet positioned within the internal bore and a...

20060088252 - Arrangement for optically coupling an optical waveguide to an optical unit of an optical module and coupling element for such an arrangement: The invention relates to an arrangement for optically coupling an optical waveguide to an optical unit of an optical module. The optical module has a reference geometry, which defines a first axis of symmetry. There is an offset between the optical axis of the optical unit and the axis of...

20060088251 - Integrated optical fiber and electro-optical converter: A fiber optic communications cable for providing a short range, high speed data communications link between information system units, including an optical fiber with an integral housing at each end having an electrical connector extending from the housing and adapted to mate with a corresponding electrical connector on an external...

20060088253 - Optical communication module: An echelon type diffraction structure 5a is formed on the flat optical surface of a lens 5, thereby ensuring easy designing and easy production of a diffraction structure as a microstructure. Further, the light of wavelength λ1 is applied to the diffraction structure 5a in a tilted position with respect...

20060088256 - Micro-optical module with housing and method for producing the same: A micro-optical module includes a housing, at least one optoelectronic component, and an optoelectronic unit assigned thereto. The housing is partly embodied as an MID body, having a cavity and having a three-dimensional conductor structure in the cavity. The MID body includes an optical channel filled with a plastic waveguide....

20060088255 - Multi-wavelength optical transceiver subassembly module: Disclosed is an optical transceiver subassembly module for multiplexing and demultiplexing a plurality of channels of different wavelengths. The optical subassembly module includes a transmitter optical subassembly (TOSA) and a receiver optical subassembly (ROSA). For a TOSA, the optical signals emitted by four laser diodes of different wavelengths are combined...

20060088254 - Surface mount (smt) connector for vcsel and photodiode arrays: Self alignment of Optoelectronic (OE) chips, such as photodiode (PD) modules and vertical cavity surface emitting laser (VCSEL) modules, to external waveguides or fiber arrays may be realized by packaging the OE chips directly in the fiber optic connector....

20060088257 - Photosensitive resin composition for optical waveguides, and optical waveguide and manufacturing method thereof: (in the formulae, each of R1 and R2 is independently a hydrogen atom or an alkyl group having 1 to 12 carbon atoms; R3is an organic group containing a radical-polymerizable reactive group; X is a single bond or a bivalent organic group; and Y is a non-polymerizable organic group), (B)...

20060088258 - Optical fiber wiring sheet and method of manufacturing same: An optical fiber wiring sheet includes: at least one optical-fiber aligning section including a plurality of two-dimensionally aligned and wired coated optical fibers; and at least one optical-fiber branching part where at least one of the plurality of coated optical fibers branches off as a branching coated optical fiber from...

20060088259 - Ultrashort photonic waveform measurement using quasi-phase-matched non-linear optics: A short-pulse measurement and detection apparatus utilizing an aperiodic non-linear quasi-phase matched (A-QPM) material. The bandwidth of the A-QPM non-linear material is such that an interaction between a first signal and a second signal occurs, facilitating measurements of signal properties by techniques such as intensity auto-correlation, intensity cross-correlation, and pulse...

20060088260 - Photonic bandgap optical waveguide: Novel preforms and methods of making novel preforms are described. The preforms are suitable for being drawn into photonic bandgap optical fibres. In one form, the preform comprises a stack of elongate members having, in transverse cross section, a triangular close-packed arrangement of circular cross section capillaries, which define interstitial...

20060088261 - Rare earth doped single polarization double clad optical fiber and a method for making such fiber: An optical fiber, comprising: (i) a rare earth doped silica based elongated core with a first refractive index (n1) with an aspect ratio of 1:5 to 1; (ii) a silica based moat abutting and at least substantially surrounding the core, the moat having a refractive index n2, wherein n2<n1; (iii)...

20060088262 - Rare earth doped single polarization double clad optical fiber with plurality of air holes: An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said inner cladding having a plurality of air holes extending longitudinally...

20060088263 - Coated optical fiber and coated optical fiber with connector: An object of the present invention is to provide a buffered optical fiber, which excels in environmental characteristics and mechanical characteristics and has high flame retardancy and excels in optical transmission characteristics, and to provide a buffered optical fiber, which is terminated with a connector and uses this buffered optical...

20060088264 - 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...

20060088265 - Silicon based on-chip photonic band gap cladding waveguide: A waveguide structure includes a core structure that has low index materials. A photonic crystal cladding structure utilized in guiding optical modes in the core. The photonic crystal cladding structure includes alternating layers of Si and Si3N4....

20060088266 - Waveguides assembled for transverse-transfer of optical power: Formation of a substantially flat upper cladding surface over a waveguide core facilitates transverse-coupling between assembled waveguides, and/or provides mechanical alignment and/or support. An embedding medium may be employed for securing optical assemblies and protecting optical surfaces thereof. Structural elements fabricated with a low-profile core may be employed for providing...

20060088267 - Production method of optical waveguide device and optical waveguide device: An optical waveguide device and a method of making the same that render excellent transmission loss characteristics and allow a large degree of freedom in circuit design are provided. The method has the steps of forming a fluorine-added silica glass first cladding layer on a substrate, forming a silica glass...

20060088268 - Optical micro-actuator: Optical actuators are provided in a variety of formats. Optical actuators use temperature increases or light momentum to convert the impingement of light into movement. Optical actuators are provided in forms such as: an optical actuator cavity that absorbs light to cause displacement of the actuator, an optical actuator micro-mirror...

20060088269 - Fused optical fiber optical device system: A fused optical fiber optical device system comprises at least one optical component comprising optical fibers and at least one other optical component with which light transmitted in the optical fibers interacts, wherein the optical fiber comprises a core glass of the following composition: La2O3 1-23 mole %, ZrO2 1-10...

20060088270 - Assembly structure of optical film and frame: An assembly structure of an optical film and a frame is provided. The optical film has a body and at least a positioning structure protruding from the edge of the optical film. The positioning structure has a sticking part and a neck. The neck is connected between the sticking part...

20060088272 - Reduced capacity carrier and method of use: A substrate transport apparatus is provided. The apparatus has a casing and a door. The casing is adapted to form a controlled environment therein. The casing has supports therein for holding at least one substrate in the casing. The casing defines a substrate transfer opening through which a substrate transport...

20060088271 - Transient thermoelectric cooling of optoelectronic devices: A thermoelectric cooler may be transiently operated in substantial synchronization with operation of an optoelectronic device to provide extremely high density and intensity spot cooling when and where desired. The invented techniques described and illustrated herein can permit high luminous flux and/or longer lifetimes for a class of emissive device...

20060083456 - High gain resonant modulator system and method: An optical resonant modulator includes an optical ring resonator and an optical loop that is coupled to the optical ring resonator by two couplers. The optical ring resonator can have a hybrid design in which the ring resonator is formed on an electro-optically passive material and the optical loop is...

20060083457 - Polarization insensitive method and apparatus for switching and modulating an optical beam: A polarization beam splitter and combiner and a polarization insensitive modulating and switching method and apparatus. In one aspect of the present invention, the disclosed apparatus a first optical waveguide disposed in a semiconductor material layer. A second optical waveguide is also disposed in the semiconductor material layer. An insulating...

20060083458 - Optic fiber security fence system: A security system is described that includes an optical fiber net woven from an optical fiber wire. A light generator introduces an incident light signal into the optical fiber wire. A light receiver receives an exigent light signal from the optical fiber wire. An optical sensor wire is connected to...

20060083459 - Optic device: An optic device includes a base, an optical chip mounted on the base, and a transparent plate. A cylinder mirror in which an imaging optical system is incorporated is fitted on the base of the optic device, wherein a pair of positioning pins are provided at the bottom of the...

20060083460 - Apparatus and method for optical switching at an optical switch fabric: Embodiments of the present invention provide a system and method for providing non-blocking routing of optical data through an optical switch fabric. The optical switch fabric can include an optical switching matrix with a plurality of inputs intersecting with a plurality of outputs. A path switch can be located at...

20060083461 - Multimode wavelength multiplexing optical transceiver: A multimode wavelength multiplexing optical transceiver has: a plurality of light emitting elements that emit single-mode lights with wavelengths different from each other; and a multimode waveguide module that is operable to multiplex the emitted single-mode lights into a multimode light. The multimode waveguide module is a step-index type multimode...

20060083462 - Artificial cladding grating in integrated optics comprising a coupling variation and production method thereof: The invention relates to an integrated optics artificial cladding grating comprising in a substrate (20) an optical guide core (2), an optical cladding (3, 3a, 3b, 3c, 3d) independent of the core and surrounding at least a portion of the core in a zone of the substrate called the zone...

20060083464 - Millimeter wave oscillator using fiber bragg grating: Provided is a millimeter wave oscillator for generating a high frequency signal required in wireless communication. The millimeter wave oscillator uses an overwritten fiber Bragg grating and a light detector such that two wavelengths in a certain phase relationship are produced to generate a signal of a millimeter wave band...

20060083463 - Optical sensor fiber with protective jacketing layers: Optical fibers, especially those having a core layer, a cladding layer over the core layer, FBG's formed in the core layer, the cladding layer, or both, a buffer layer over the cladding layer, and an outer jacketing layer....

20060083465 - Three dimensional semiconductor based optical switching device: A device with optical switching between multiple layers of a semiconductor die is disclosed. In one aspect of the present invention, the disclosed apparatus includes a first semiconductor material layer of a semiconductor die. The first semiconductor material layer has a first optical waveguide. A second semiconductor material layer is...

20060083466 - Fiber tip detector apparatus and related methods: A system and method are described for controlling acceptance of a fiber connector. A configurable adapter is employed for connecting fiber connectors to a laser housing. A specific version of the adapter permits connecting both general-purpose and specific-purpose fiber connectors to the laser housing. A less versatile configuration of the...

20060083467 - Hybrid adapter: The invention relates to a universal hybrid adapter, comprising a first housing part and a second housing part, the first housing part defining a receptacle for a plug connector having a ferrule having a first diameter, and the second housing part defining a receptacle for a plug connector having a...

20060083468 - Coupling for glass fiber connectors with retrofittable security valve: A coupling (1) for receiving at least two plug-in connectors (2) which are joined to glass fiber cables, comprising at least one moveable cover (14) which is associated with a sheath opening (121), said cover covering the opening (121) of the sheath in a first position, and being able to...

20060083469 - Means and method for coupling optical components: There is disclosed herein a process of optically and mechanically coupling two or more than two optical components with a strippable and removable refractive index matching silicone elastomer mixture and the mixture itself....

20060083470 - Coherent duv illumination for semiconductor wafer inspection: An apparatus for inspecting a specimen, such as a semiconductor wafer, is provided. The apparatus comprises a laser energy source, such as a deep ultraviolet (DUV) energy source and an optical fiber arrangement. The optical fiber arrangement comprises a core surrounded by a plurality of optical fibers structures used to...

20060083471 - Single polarization and polarization maintaining optical fibers and system utilizing same: An optical fiber, comprising: a central core having a maximum dimension (A) greater than a minimum dimension (B) and a substantially elliptical shape, the fiber having at least one air hole positioned each opposite side of the central core wherein the optical fiber exhibits (i) single polarization propagation within a...

20060083473 - Microfluidic control for waveguide optical switches, variable attenuators, and other optical devices: Devices utilize elements carried by a fluid in a microchannel to switch, attenuate, shutter, filter, or phase shift optical signals. In certain embodiments, a microchannel carries a gaseous or liquid slug that interacts with at least a portion of the optical power of an optical signal traveling through a waveguide....

20060083472 - Optical delay element: An optical delay element including a photonic crystal line defect optical waveguide is disclosed that has a large group refractive index and has small or nearly constant wavelength dispersion of the group refractive index in a wide wavelength region for practical use. The optical delay element includes a line defect...

20060083474 - Potassium free zinc silicate glasses for ion-exchange processes: A fluorinated zinc-silicate glass having a composition, expressed in molar percent, of essentially from about 49 to about 69% SiO2, from about 2% to about 30% ZnO, from about 3.9 to about 18% Al2O3, from about 10% to about 16.7% Na2O, from about 0% to about 13% B2O3, from about...

20060083475 - Optical fiber splice case: An optical fiber splice case particularly adapted for providing fiber optic links directly to a home, business, et al. is provided wherein an enclosure base has a dividing wall defining a drop chamber on a first side of the wall and a splicing chamber on a second side of the...

20060083476 - Optical device with dual function of illumination and forming a figurative image: There is disclosed an apparatus having a display zone, such as a liquid crystal screen (4), and including an optical device for forming a decorative pattern in the form of a figurative image. The optical device for forming a figurative image includes an optical guide (1), at least partially superposed...

20060083478 - Multifunctional optical assembly: An integrated optical assembly including a light management component with an entry surface and a light delivery component having an exit surface attached to the entry surface of the light management component is disclosed The light management component and the light delivery component are attached together in a manner that...

20060083477 - Resonator, light emitting device, and wavelength conversion device: A resonator is provided which is produced by a defect formed in a three-dimensional photonic crystal. The three-dimensional photonic crystal can include layers containing a plurality of columnar structures with discrete structures in sublayers....

20060078247 - Package structure for optical modulator: Disclosed herein is a package structure for an optical modulator, which is configured such that an optical modulating device and electronic control circuitry are incorporated into a module, thus allowing the manufacture of a compact module while maintaining the optical properties of the optical modulating device....

20060078248 - Structure and method for mounting lsi package onto photoelectric wiring board, information processing apparatus, optical interface, and photoelectric wiring board: An LSI package having an optical interface is mounted on a surface of a photoelectric wiring board. The photoelectric wiring board and the optical interface are optically connected with sufficient precision. A wiring board side guide member including socket pins and guide pins is soldered and fixed onto the photoelectric...

20060078246 - Transparent member, optical device using transparent member and method of manufacturing optical device: In a method of manufacturing an optical device, a whole substrate is first prepared which has a plurality of regions corresponding to substrates constituting a plurality of optical devices, respectively. A plurality of chips are then mounted to the plurality of regions, respectively. A whole sealing member having a plurality...

20060078245 - Waveguide type optical device and manufacturing method thereof: An array waveguide diffraction grating 201 as waveguide type optical device comprises a planer lightwave circuit 203 with an optical waveguide layer 211 formed on a silicon substrate 212 and having a predetermined thickness h0, a first compensation substrate 204 bonded to the side of the optical waveguide layer 211...

20060078250 - Optical switch: An optical switch has an input port, output ports, optical waveguides whose output path of an optical signal branch into two. A first stage optical switch section is provided in a branching portion of the optical waveguide, which switches a propagating path of an optical signal to a path leading...

20060078249 - Optical transistor with sub-wavelength aperture: An optical switch has a conductor and one or more sub-wavelength apertures. The switch is activated and periodic perturbations are dynamically formed in proximity to the conductor. Photons are directed toward and impinge upon the switch, and a greater amount of light propagates through the sub-wavelength apertures in the activated...

20060078251 - Systems and methods for optical switching to colourless ports and coloured ports: A wavelength selective switch is provided with a multiplexer such that both colourless (wavelength non-specific) and coloured (wavelength specific) ports are available. A waveguide device is employed with dispersive elements having different characteristics to realize the colourless and coloured ports within one waveguide device....

20060078253 - Optical signal retiming, reshaping, and reamplifying (3r) regeneration system having monolithically integrated mach zehnder interferometer and self-pulsating laser diode: The 3R regeneration system for a retiming, reshaping, and reamplifying an optical signal includes: first and second input ports in which a connected optical signal is input; an interferometer including first and second branches formed on a substrate, split at a common input node, combined at a common output node,...

20060078252 - Wavelength division multiplexer architecture: Embodiments of the invention involve separating the collimating function and tilting function into two separate optical elements. The separation increases tolerance to misalignment and simplifies the fabrication of the MUXes....

20060078254 - Vertically coupling of resonant cavities to bus waveguides: Embodiments of the invention involve a monolithic vertical configuration for coupling a ring resonator and a bus waveguides. The monolithic vertical coupling arrangement, with the epitaxial grown coupling between the waveguide and the resonator, provides control of the coupling coefficient. The vertical coupling arrangement allows for different material compositions in...

20060078255 - Electro-optical device for coupling light-signals into a waveguide: The invention relates to an electro-optical arrangement for coupling light signals into an optical waveguide, which has a laser diode for emitting light signals and a microlens, which focuses light signals emitted by the laser for coupling into the optical waveguide. According to the invention, the microlens is arranged on...

20060078256 - Light modulator package having inclined light transmissive lid: Disclosed herein is a light modulator package having an inclined light transmissive lid which is manufactured or positioned such that a surface of the light transmissive lid is inclined relative to a reflective surface of a light modulating array....

20060078257 - Tunable wavelength optical transmission module: Disclosed herein is a tunable wavelength optical transmission module, the wavelength of which can be tuned over the wide wavelength region of a C band and which can be implemented at a low price and, thus, can be applied to an optical network terminal. Bragg gratings having different grating periods...

20060078258 - Apparatus and method for trimming and tuning coupled photonic waveguides: The coupling of a pair of optical waveguides is trimmed and/or tuned in an optimal manner by alteration of the refractive index of the structure in a segment of the waveguide structure....

20060078259 - Latching mechanism for small form factor pluggable modules: A latching mechanism for releasably engaging an optical module with an outer housing (referred to as a “cage”) includes a bail handle that is pivotally attached to a front end of the optical module, allowing the bail handle to rotate between a first, engaged position and a second, disengaged position....

20060078260 - Electrical module cover, electrical module and optical transceiver: An electrical module cover is fitted over a circuit substrate-accommodated chassis. The cover has a chassis-fitted opening into which is fitted the chassis, and a slit extending from the chassis-fitted opening to the opposite side....

20060078261 - Optical device module, optical transmitter and receiver, and optical receptacle: An optical device module includes a stub ferrule for guiding a laser light to an optical fiber to be connected, a sleeve for holding an optical-connector ferrule of the optical fiber to be connected and the stub ferrule, a holder for fixing the stub ferrule and the sleeve, and an...

20060078262 - Optoelectronic module with high coupling efficiency: An optoelectronic module includes a laser, a ball lens, a substrate, a reflector, and a focusing lens. The laser is operable to generates a diverging light beam along an optical axis. The ball lens has a center. The substrate has a surface supporting the laser and an alignment structure. The...

20060078263 - Waveguide element using photonic crystal: In a waveguide element using a photonic crystal including a core formed of a photonic crystal having a refractive index periodicity in at least two directions perpendicular to a propagation direction of an electromagnetic wave and a cladding arranged in contact with the core in order to confine the electromagnetic...

20060078264 - Apparatus and methods for estimating optical insertion loss: An apparatus and a method for estimating optical insertion loss of a fiber optic jumper cable are disclosed. Estimation of the insertion loss is accomplished without physically contacting an optical connection portion of the ferrule end face of the connector. In one embodiment, the apparatus and method use pattern matching...

20060078265 - Device and method for delivery of long wavelength laser energy to a tissue site: A laser energy delivery device is provided that is suitable for irradiating a body tissue with relatively long wavelength laser energy in the presence of an aqueous liquid without significant absorption of the laser energy by the liquid. The device includes an elongate hollow sheath that has an open aperture...

20060078267 - Light illuminating unit and liquid crystal display device having the same: A light illuminating unit includes light generating members and a light guiding plate. Each of the light generating members generates light. The light generating members include an LED. The light guiding plate includes a light-incident face onto which the light is incident, a lateral face facing the light-incident face, and...

20060078266 - Optical engine and an image projector having the optical engine: An optical engine for an image projector comprises a light source, a taper rod, at least one light condenser, a prism module, a Digital Micromirror Device (DMD) and a projection lens set. One end of the taper rod is adjacent to the light source. Light generated by the light source...

20060078270 - Decorative lighting product and process of making: A polyurethane decorative lighting product comprising a casing made of polyurethane material and a lighting source positioned in the casing. By using polyurethane material, this invention greatly simplifies the manufacturing process and increases the production efficiency. In addition, since the material is elastic in nature, the semi-finished products and finished...

20060078271 - Optical element: It is seen from this that peeling does not occur if the thickness of the resin is 30 μm or less. However, it was found that if (B/A) is small, peeling does not occur even at thicknesses greater than 30 μm, as long as the equation shown above is satisfied....

20060078268 - Photonic crystal device and methods: A photonic crystal device is fabricated by a method comprising steps of providing a substrate, providing a photonic crystal on the substrate, and etching a cavity under at least the photonic crystal, the cavity having an inner wall adapted to reflect light....

20060078269 - Video optical receiver: A video overlay optical receiver is disclosed. The receiver includes a light-receiving device arranged to convert an optical signal into an electrical signal and a transimpedance amplifier having an output impedance value of 50Ω for amplifying the electrical signal....

20060072866 - Interference optical switch and variable optical attenuator: The present invention discloses an interferometer optical switch that can carry out switching over a broad band and has a high extinction ratio and large fabrication tolerance. The interferometer optical switch employs a phase generating coupler, the phase difference of the output of which has wavelength dependence, as at least...

20060072867 - Optical transmitter: The present invention provides an optical transmitter that compensates the thermal tracking error. The transmitter comprises a temperature feedback loop including temperature controller that controls the temperature of the laser diode to coincide with the reference temperature by the thermo-electric device. The reference temperature reflects the thermal tracking error that...

20060072868 - Pressure sensor: A pressure sensor includes an optical transmitter transmitting a dispersive light toward two optical receivers, all carried in a housing. Pressure changes on the housing cause the light beam to be deflected with the amount of deflection measured by the difference in light received by each of the two receivers....

20060072869 - Optical fiber position transducer for flow control valve in smart wells: A fiber optics position transducer is described (100) for flow control valve in smart wells, which comprises at least two load cells (10) instrumented with Bragg (FGB) network sensors and supported by rings (20a, 20b). The cell (10) is formed by a quadrangular body (11), provided with a central hole...

20060072871 - Electronic circuit board: An electronic circuit board having an optical wiring layer sandwiched between two electrical wiring layers. The optical wiring layer is structured to be a two-dimensional optical waveguide. An E/O device and an O/E device are provided in the optical wiring layer or at an interface between the optical wiring layer...

20060072870 - Micro mirror and method of manufacturing the same: A micro mirror and a method of manufacturing the same are provided. The micro mirror includes a silicon substrate having a first slant plane and a second slant plane that face each other, and a clad layer including a first mirror surface and a second mirror surface respectively formed on...

20060072873 - Rotary optical switch: An apparatus for directing a light path sequentially between multiple positions. A rotary switch rotates a light beam from a prism relative to a plurality of optical elements arranged radially on a switch body. In one embodiment, a prism rotates in the switch body, causing the light beam to sweep...

20060072872 - Switches for changing optical path and selecting wavelength: In a wavelength selecting optical switch, a shutter is situated near an incident position, which is a position at which the light falls onto the mirrors, and has a plurality of blocking members that prevent or allow light to be incident onto respective mirrors. Moreover, a control unit controls a...

20060072874 - Configuration memory for a scanning beam device: The present invention provides a memory element for providing compatibility information and/or parametric data about a scanning beam device to a universal base station. The present invention provides a memory coupled to the scanning beam device that provides parametric data, such as an identifier code, compatibility information, and other characteristics...

20060072875 - Transverse closed-loop resonator: A transverse closed-loop fiber resonator (10) includes an inner cladding (102) having a surface (300) peripherally forming a closed-loop shape for confining light to the surface (300). The inner cladding has a first diameter thickness (104) and a first index of refraction profile in a cross-sectional portion of the transverse...

20060072876 - Optical signal receiver, optical signal receiving apparatus, and optical signal transmitting system: The optical signal receiver of this invention is an optical signal receiver that receives and frequency-demodulates an optical signal, comprising: an optical branch device for splitting an input optical signal into two optical signals (13); an optical delay line for delaying one of the two branched optical signals (15); a...

20060072877 - Beam homogenizer, laser irradiation apparatus, and method for manufacturing semiconductor device: The present invention is to provide a beam homogenizer, a laser irradiation apparatus, and a method for manufacturing a semiconductor device, which can suppress the loss of a laser beam and form a beam spot having homogeneous energy distribution constantly on an irradiation surface without being affected by beam parameters...

20060072878 - Optical connector with total internal reflection abutting surface: An optical connector (10) comprises at least one optical guide (12) for carrying optical radiations; a total internal reflection surface (11) upon which, in use, said radiations impinge, so that the radiation in the optical guide is reflected by said surface towards an optical element (14) of the connector and...

20060072879 - Optical fiber polishing method: Disclosed is a method for polishing a multi-fiber ferrule assembly and the optical fibers protruding from the ferrule using at least one particle loaded film, at least one slurry, and at least one flocking film....

20060072880 - Opto-electro cable and related apparatus: A composite cable assembly comprises optical fiber and metal wire, having a composite connector at each end of the cable. The connector houses the optical fiber at its core, with an elongated cylinder protruding from a protective grip forming an insertion guide and functioning as an electrical conductor. An opto-electro...

20060072882 - Optical communication module: The optical communication module can be coupled to at least one optical fiber and includes at least one optoelectronic device, a base portion, and a cover portion which can be connected to the base portion to define an internal chamber to house the optoelectronic device. The cover portion includes at...

20060072881 - Optoelectronic transceiver: An opto-electronic transceiver having: a transmitting component for converting electrical signals into optical signals; a first circuitry module for the transmitting component; a receiving component for converting optical signals into electrical signals; a second circuitry module for the receiving component; a printed circuitboard with conductor tracks, on which the transmitting...

20060072883 - Optical module hermetically packaged in micro-machined structures: An optical module comprising an opto-electronic component, a lens and a mirror that is hermetically sealed by a micro housing containing a lid and a base is disclosed. The optical module may be assembled onto a moveable holder for aligning an optical beam into an optical assembly having an optical...

20060072884 - Optical fiber mechanical splice with strain relief mechanism: To provide an optical fiber splicing member which can hold optical fiber buffer coatings stably in a simple structure as compared with conventional art, and which enables use of an existing splicing tool. There are provided a joint element (110), a jacket (120), buffer retainers (131) and a cap (140)....

20060072885 - Method and device for arranging optical fibers: A piping unit and method for efficiently arranging a plurality of optical fibers in a communication system. The piping unit includes an elongate tube having a plurality of parallel longitudinal cavities extending the length of the tube. The longitudinal cavities have a circular transverse cross-section, while the tube preferably has...

20060072886 - Loose tube optical cable: Disclosed is a loose tube optical cable, which includes at most four cable aggregation units longitudinally twisted in contact with a central tensile member and having a loose tube optical fiber unit or inclusion, a cable coating for longitudinally surrounding a cable core aggregation having the central tensile member and...

20060072887 - Intensity modulated fiber optic static pressure sensor system: A fiber optic sensor for measuring static pressure includes a cartridge housing having an end that is exposed to the atmosphere, a thin flexible membrane covering the exposed end of the cartridge housing such that the flexible membrane has an exposed side and a protected side, and a fiber bundle...

20060072888 - Mutiplexed fiber optic sensor system: A multiplexed fiber optic sensor system including a first optical fiber having a first end arranged to receive light from a light souce, at least two optical fibers having diameters smaller than the first optical fiber, and at least two fiber optic sensors, each of the at least two smaller...

20060072890 - Optical fiber core wire, method of removing coating from optical fiver core wire and process for producing optical fiber part: A resin coated optical fiber 1 comprising a bare optical fiber 2 and sequentially provided on its circumference with a primary coating layer 3a and a secondary coating layer 3b both made of an ultaviolet-curing urethane resin. The primary coating layer 3a and the secondary coating layer 3b have respective...

20060072889 - Optical fiber with reduced attenuation loss: An optical fiber having an internal glass portion, a first coating layer surrounding the glass portion and a second coating layer surrounding the first coating layer. The first coating layer is formed from a cured polymeric material obtained by curing a radiation curable composition having a radiation curable oligomer having...

20060072891 - Methods of manufacturing mold for patterning lower cladding layer of wavelength filter and of manufacturing waveguide-type wavelength filter using the mold: Disclosed herein is a method of manufacturing a mold for patterning a lower cladding layer of a wavelength filter, which includes a) etching a substrate to form a grating pattern on the substrate; b) preparing an etching mask for an optical waveguide pattern and then etching the substrate using the...

20060072892 - Flexible optical cabling: The present invention relates to an arrangement and a method for flexible installation of an optical patch cable PC1 in a telecommunication station TS between equipment AE4, AE7 in the station. The arrangement comprises a micro duct 1 for guidance of the patch cable. The duct have duct end openings...

20060072893 - Method for producing an optical fiber termination and fiber optic conductor: In a method for producing a termination of an optical fiber bundle, the optical fiber bundle is combined at one end in a crimping sleeve, and the crimping sleeve is introduced with the end of the optical fiber bundle into a compression device having a crimping tool which matches the...

20060072894 - Optical return loss measurement: An optical test apparatus. The test apparatus includes an optical source. A first optical switch is connected to the optical source. An attenuated responsivity test path may be selectively coupled to the first optical switch. A return loss test path may alternatively be selectively coupled to the first optical switch....