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| Number | Title | Issue Date |
| 7181099 | Fiber optic module packaging architecture for integrated circuit and optical subassembly integration A fiber optic module that includes a packaged integrated circuit chip mounted on a top surface of a printed circuit or other mounting board is disclosed. The integrated circuit chip is electrically coupled to an optical subassembly (OSA) mounted along an edge of the... | 02/20/2007 |
| 7181104 | Optical monitor and a method for improved optical monitoring The inventor proposes herein a novel optical monitor requiring only a single fiber-coupled photodetector. In one embodiment of the present invention, the optical monitor further includes an optical coupler for tapping a portion of an optical signal, a tunable filter... | 02/20/2007 |
| 7181109 | Photonic device and method for making same A monolithic device for photonically coupling a first optical waveguide to a second optical waveguide, including: an input being optically coupled to the first waveguide; a first portion being optically coupled to the input; a second portion being optically coupled ... | 02/20/2007 |
| 7181101 | Optical measuring system with arrayed optical receivers and method thereof The disclosure is an optical measuring system and the method thereof for precisely measuring physical characteristics of light emitted from waveguides, such as beam size, pattern, strength, focusing, collimation degree, and divergence angle, by means of a plane opti... | 02/20/2007 |
| 7181102 | Optical switching systems and methods In some embodiments, a 1×N optical switch includes: a plurality of co-planar, parallel output optical fiber collimators oriented to receive light substantially perpendicular to a longitudinal direction; and a plurality of switching units each corresponding to an ou... | 02/20/2007 |
| 7180601 | Optical system featuring chirped Bragg grating etalon for providing precise reference wavelengths An optical system has a broadband source and a chirped Bragg grating etalon. In operation, the broadband source provides a broadband optical signal. The chirped Bragg grating etalon responds to the broadband optical signal, for providing a chirped Bragg grating etal... | 02/20/2007 |
| 7177545 | Optical filter and transmission system incorporating an optical filter The present invention propose an optical filter for filtering out at least a part of one of two spectral side-bands of a coded optical signal spectrum having a carrier wavelength, the first of said side-bands which is to be transmitted by said filter being called tr... | 02/13/2007 |
| 7177073 | Multiple order Raman amplifier A Raman amplifier for use in an optical fiber communication system with dispersion compensation has a first order Raman pump source and a second order Raman pump source both coupled to the input ports of a four-port optical coupler having two input ports and two out... | 02/13/2007 |
| 7177074 | Circuit and method for safety shutdown of an optical amplifier A circuit and associated method for safety shutdown of an optical amplifier, wherein the power of an amplified spontaneous emission ASE is subject to a correction factor and subtracted from a measured signal extracted from the optical signal. ... | 02/13/2007 |
| 7177489 | Silicon-insulator-silicon thin-film structures for optical modulators and methods of manufacture The present invention provides silicon based thin-film structures that can be used to form high frequency optical modulators. Devices of the invention are formed as layered structures that have a thin-film dielectric layer, such as silicon dioxide, sandwiched betwee... | 02/13/2007 |
| 7177491 | Fiber-based optical low coherence tomography Generally, and in one form of the present invention, is a polarization-maintaining fiber-based polarization sensitive optical low coherence reflectometer for depth resolved birefringence measurement. With the present invention, linear birefringence of a sample may b... | 02/13/2007 |
| 7177496 | Optical spectral power monitors employing time-division-multiplexing detection schemes The present invention provides a method and apparatus for optical spectral power monitoring that employ a time-division-multiplexed detection scheme. The optical spectral power monitoring apparatus of the present invention uses a wavelength-dispersing means such as ... | 02/13/2007 |
| 7177157 | Multiple width transceiver host board system The present invention provides a host board system in which transceivers of two sizes (the larger approximately twice the width of the smaller) can be arbitrarily mixed within a given host board design. This is accomplished by specifying an arrangement of electrical... | 02/13/2007 |
| 7173749 | Opto-electronic feedback for stabilizing oscillators This application describes use of an opto-electronic feedback in oscillators to suppress phase noise based on the high Q factor of the opto-electronic feedback. ... | 02/06/2007 |
| 7174077 | Fiber coupled laser diodes with even illumination pattern An optical fiber for evenly illuminating a target. The optical fiber is coupled to a laser emitting diode and receives laser light. The laser light travels through the fiber optic and exits at an exit end. The exit end has a diffractive optical pattern formed thereo... | 02/06/2007 |
| 7174080 | Guided wave spatial filter The invention concerns a guided wave spatial filter (300) for receiving input radiation and outputting corresponding filtered output radiation, the filter comprising first and second waveguide sections (30, L3, L5) connected in series, th... | 02/06/2007 |
| 7174064 | Optical channelizer utilizing resonant microsphere coupling In a method and apparatus for converting optical wavelength division multiplexed channels to wireless channels, the information carrying optical carriers are first de-multiplexed and each optical carrier is then extracted from the data using an optical channelizing ... | 02/06/2007 |
| 7174058 | Traveling-wave optoelectronic wavelength converter Traveling-wave optoelectronic wavelength conversion is provided by a monolithic optoelectronic integrated circuit that includes an interconnected traveling-wave photodetector and traveling-wave optical modulator with a widely tunable laser source. Either parallel an... | 02/06/2007 |
| 7173756 | Optical amplification system for variable span length WDM optical communication systems An optical communications system includes a plurality of optical fiber spans. An optical loss of one of the plurality of optical fiber spans is different from an optical loss of another one of the plurality of optical fiber spans. At least one of the plurality of op... | 02/06/2007 |
| 7171067 | Integrateable optical interleaver and de-interleaver A proposed integrateable optical interleaver includes an input Y-branch coupler and at least two multi-section optical couplers. The multi-section optical couplers of the interleaver include at least three substantially similar optical couplers, adjacent ones of the... | 01/30/2007 |
| 7171068 | Method to improve an extinction ratio of an optical device A method to improve an extinction ratio of an optical device, the method includes positioning at least a majority of a plurality of micro-mirrors in an off-state position. A mirror assembly includes the plurality of micro-mirrors. The method also includes selectivel... | 01/30/2007 |
| 7171082 | Method and apparatus for optical top-hat pulse generation An optical top-hat pulse generator comprising a polarization-maintaining fiber loop and controlled by solitons. A polarization-maintaining coupler launches a continuous wave optical signal into the fiber loop along a principal axis of the fiber loop. Another coupler... | 01/30/2007 |
| 7171117 | Optical router An optical router is disclosed having at least one frequency router. The frequency router includes a plurality of input ports and a plurality of output ports. At least one input port simultaneously receives at least two optical signals to be frequency routed, while ... | 01/30/2007 |
| 7171070 | Arrangement for low cost path protection for optical communications networks An arrangement provides low cost path protection in an optical communications network. The arrangement has a portion 3 that provides (broadcasts) an outbound optical signal, and at least first and second transmitting portions 202, 206 transmit the outb... | 01/30/2007 |
| 7165896 | Light transmitting modules with optical power monitoring An optical module, such as a package for a vertical cavity surface emitting laser diode (VCSEL) or other light emitting device, includes monitoring of the emitted optical power by tapping the transmitted beam. The module includes a substrate, which carries the light... | 01/23/2007 |
| 7167143 | Method and system for determining characteristics of optical signals on spatial light modulator surfaces The present application describes a system and method for determining characteristics (e.g., exact band location, orientation and height and the spot shape and size of a single wavelength and the like) of an optical signal projected on a spatial light modulator. In ... | 01/23/2007 |
| 7167612 | Wavelength tunable filter capable of being bidirectionally driven by electromagnetic forces A wavelength tunable filter capable of being driven such that reflecting mirrors move more distant as well as closer by using the principle that a direction of the electromagnetic forces changes depending on the direction of the current flowing perpendicular to the ... | 01/23/2007 |
| 7167610 | Compact and reconfigurable optical device for controlled insertion/dropping of optical resources An optical multiplexer device is dedicated to inserting/dropping optical resources for an optical transmission line comprising an upstream fiber and a downstream fiber. The device comprises: first and second OMADs each having a first primary inlet/out1et connected t... | 01/23/2007 |
| 7164816 | Signal addition to a wave division multiplex system A telecommunications system is formed from a single mode optical fiber carrying Wave Division Multiplex (WDM) traffic. A transmission fiber coupler is arranged to couple signals from channels to be added to the single mode optical fiber. A coupler connects the chann... | 01/16/2007 |
| 7164820 | Electro-optic filament or fibre In the field of flexible displays there is a need for an electro-optic filament that is capable of being woven, knitted or crocheted. An electro-optic filament or fibre (10) includes an elongate core (11) extending lengthwise within a volume (12... | 01/16/2007 |
| 7164826 | Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides A method for fabricating optical devices comprises the steps of preparing a first substrate wafer with at least one buried optical waveguide on an approximately flat planar surface of the substrate and a second substrate wafer with at least a second buried optical w... | 01/16/2007 |
| 7163872 | Tunable-wavelength optical filter and method of manufacturing the same An active type tunable wavelength optical filter having a Fabry-Perot structure is disclosed. A tunable wavelength optical filter which comprises a lower mirror in which silicon films and oxide films are sequentially laminated in a multi-layer and the silicon film i... | 01/16/2007 |
| 7164821 | Tunable resonant cavity based on the field effect in semiconductors The index of refraction of waveguide structures can be varied by altering carrier concentration. The waveguides preferably comprise semiconductors like silicon that are substantially optically transmissive at certain wavelengths. Variation of the carrier density in ... | 01/16/2007 |
| 7164824 | Waveguide turn for a waveguide circuit A waveguide turn having two waveguides oriented at an angle with respect to one another and optically coupled to one another by a reflective surface. In one embodiment, the reflective surface is a side of a trench formed in the core and cladding regions of the waveg... | 01/16/2007 |
| 7162118 | Dual optical switch A single-sided optical switching device for functioning as a dual switch wherein individual switches share common switching means is disclosed. The individual switches have separate ports and share common switching means formed by a moveable refractor, a single lens... | 01/09/2007 |
| 7160034 | Optical transmission and receiver module An optical transmission and receiver module suitable for a single-fiber bi-directional communication includes a light emitting device, a photodiode, an optical path routing element which allows light emitted from the light emitting device and light directed to the p... | 01/09/2007 |
| 7161113 | Laser machining system for forming multiple machining spots by a single laser A laser machining system is provided that includes a work-piece and at least one light source that produces a laser light along a first axis. The laser light defines a first portion of laser light and a second portion of laser light radially inward relative to the f... | 01/09/2007 |
| 7162114 | Optical energy switching device and method An optical power or energy-switching device, comprising an optical waveguide having an input section and an output section, the two sections forming a pair of opposed surfaces extending transversely through the axes of said waveguide sections, and a thin, substantia... | 01/09/2007 |
| 7162139 | Surface light source device and display device In a front light equipped with a light source and a transparent plate emitting light from a light emitting surface which is situated at the reverse side against an observation side surface by conducting light from the light source, the reflection preventive patterns... | 01/09/2007 |
| 7162156 | Bi-directional single fiber optic link for data and radio frequency transmissions A data link system comprising a shelter housing sensitive radio frequency equipment and an antenna located apart from the shelter. A single fiber, bi-directional fiber optic link couples the antenna to the shelter. Both RF signals and data signals are sent across th... | 01/09/2007 |
