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| Number | Title | Issue Date |
| 8184929 | Method of tuning optical components integrated in a monolithic photonic integrated circuit (PIC) An optical transmitter comprises a monolithic transmitter photonic integrated circuit (TxPIC) chip that includes an array of modulated sources formed on the PIC chip and having different operating wavelengths approximating a standardized wavelength grid and providin... | 05/22/2012 |
| 8150218 | Thermo-optical phase shifter Provided is a thermo-optical phase shifter including a composite body having an optical waveguide formed by a core and a clad and having a ratio Δ of a difference between a core refractivity and a clad refractivity against the core refractivity which is 4% or above... | 04/03/2012 |
| 8131119 | Optical device with large thermal impedance Embodiments of an optical device, an array of optical devices, and a technique for fabricating the optical device or the array are described. This optical device is implemented on a substrate (such as silicon), and includes a thermally tunable optical waveguide that... | 03/06/2012 |
| 8078013 | Dual-layer thermally tuned optical device Embodiments of an optical device, an array of optical devices, and a technique for fabricating the optical device or the array are described. This optical device is implemented using two semiconductor layers (such as silicon), one of which includes a heater and the ... | 12/13/2011 |
| 8023774 | Method, apparatus and system for minimally intrusive fiber identification A method, apparatus and system for minimally intrusive fiber identification includes imparting a time-varying modulation onto an optical signal propagating in an optical fiber and subsequently detecting the presence of the time-varying modulation in the optical sign... | 09/20/2011 |
| 7995871 | Stress-induced bandgap-shifted semiconductor photoelectrolytic/photocatalytic/photovoltaic surface and method for making same Titania is a semiconductor and photocatalyst that is also chemically inert. With its bandgap of 3.0, to activate the photocatalytic property of titania requires light of about 390 nm wavelength, which is in the ultra-violet, where sunlight is very low in intensity. ... | 08/09/2011 |
| 7961988 | Rapidly tunable wavelength selective ring resonator A system and method are disclosed for a rapidly tunable wavelength selective ring resonator. An embodiment of a voltage-tunable wavelength selective ring resonator includes a ring-shaped waveguide formed on a semiconductor substrate, an electro-optic cladding layer ... | 06/14/2011 |
| 7949210 | Silicon-compatible surface plasmon optical elements This invention provides fundamental science and novel device architectures for surface plasmon (SP)-based, complementary metal oxide semiconductor (CMOS)-compatible, optical elements such as modulators, couplers, and switches. The primary focus of the work is on wav... | 05/24/2011 |
| 7933475 | Method and apparatus for providing back-lighting in a display device Methods and apparatus for providing lighting in a display are provided. In one embodiment, a microelectromechanical system (MEMS) is provided that includes a transparent substrate and a plurality of interferometric modulators. The interferometric modulators include ... | 04/26/2011 |
| 7929812 | Methods and apparatus for single fiber optical telemetry Single fiber optical telemetry systems and methods are disclosed. The methods and systems facilitate input and output via a single fiber optic interface. The optical telemetry systems and methods also facilitate faster data transmission rates between surface and dow... | 04/19/2011 |
| 7925122 | Slot waveguide for color display A slot waveguide utilized as a color-selecting element. The slot waveguide includes a first layer of plasmon supporting material, the first layer being optically opaque and having an input slit extending through the first layer; a second layer of plasmon supporting ... | 04/12/2011 |
| 7916981 | Optical modulator An optical modulator, including: a substrate; an optical waveguide embedded in the substrate; a traveling wave electrode mounted on the substrate and having a traveling wave applied thereon so that a light wave is modulated by the traveling wave with an electro-opti... | 03/29/2011 |
| 7916982 | All fiber magneto-optic on-off switch for networking applications An integrated fiber optic switch based on the magneto-optic effect of magnetic materials suitable for optical fiber networks is presented. The switch is based on the Faraday Effect exhibited by magneto-optic materials. The all-fiber magneto-optic switch has a beam s... | 03/29/2011 |
| 7916980 | Interconnect structure for MEMS device An interferometric modulator array is formed with connectors and/or an encapsulation layer with electrical connections. The encapsulation layer hermetically seals the array. Circuitry may also be formed over the array. ... | 03/29/2011 |
| 7912325 | Optical control element There is provided an optical control element in which non-guided light is prevented from entering into an optical waveguide and which is excellent in optical properties, such as optical modulation properties. A media processor, such as a CD publisher, having a funct... | 03/22/2011 |
| 7876981 | Optical switch An optical switch comprises a plurality of input ports and a plurality of out port ports; a plurality of displaceable optical elements for directing beams from a selected input to a selected output; wherein the number of displaceable elements substantially correspon... | 01/25/2011 |
| 7869668 | Method for generating carrier residual signal and its device A method for generating a carrier residual signal and its device, in which a heterodyne optical signal used in a photometric field or an optical fiber radio communication field can be stably generated with a simplified structure. The device includes an optical modul... | 01/11/2011 |
| 7860352 | Light-collecting apparatus and contact-type solid-state imaging apparatus using the same The present invention provides a contact-type solid-state imaging apparatus which realizes high resolution and high sensitivity, and also implements downsizing and lowering the cost of the contact-type solid-state imaging apparatus. Each pixel includes a protection ... | 12/28/2010 |
| 7848599 | Optical device with large thermal impedance Embodiments of an optical device, an array of optical devices, and a technique for fabricating the optical device or the array are described. This optical device is implemented on a substrate (such as silicon), and includes a thermally tunable optical waveguide that... | 12/07/2010 |
| 7840099 | Ultrafast Ge/Si resonator-based modulators for optical data communications in silicon photonics An optical modulator structure includes at least two waveguide structures for inputting and outputting an optical signal. At least one ring resonator structure provides coupling between the at least two waveguide structures. The at least one ring resonator structure... | 11/23/2010 |
| 7840098 | Variable optical power limiter A variable optical power limiter is disclosed. An apparatus according to aspects of the present invention includes an optical waveguide disposed in semiconductor material. An optical beam is to be directed through the optical waveguide. The optical beam is to genera... | 11/23/2010 |
| 7787713 | Integrated optical waveform modulation A method of modulating an optical carrier. A target carrier modulation is computed based on an input data signal. An effective length of an optical modulator is then controlled based on the target carrier modulation. ... | 08/31/2010 |
| 7751654 | Electro-optic modulation A silicon electro-optic waveguide modulator is formed using a metal-oxide-semiconductor (MOS) configuration. Various embodiments are described using different modes of operation of the MOS diode and gate oxide thicknesses. In one example, a high-speed submicron wave... | 07/06/2010 |
| 7747109 | MEMS device having support structures configured to minimize stress-related deformation and methods for fabricating same Embodiments of MEMS devices include a movable layer supported by overlying support structures, and may also include underlying support structures. In one embodiment, the residual stresses within the overlying support structures and the movable layer are substantiall... | 06/29/2010 |
| 7729564 | Optical fiber provided with reliable coating layers An optical fiber is provided, which is unlikely to cause interlayer delamination between a glass optical fiber and a primary coating layer even when it is immersed in water. The optical fiber of the present invention includes a glass optical fiber 1 consistin... | 06/01/2010 |
| 7720319 | Regression and erosion measurement system and method A method and system for determining the length of collocated waveguides in a high erosion environment, such as a solid rocket motor or a braking system. The system provides for mating optical waveguides having different attenuation coefficients within the combusting... | 05/18/2010 |
| 7711212 | Junction field effect transistor geometry for optical modulators An apparatus for controlling a signal includes an optical waveguide having a variable refractive index; an active device formed within the waveguide, the device having three electrodes, a drain, a source and a gate; and wherein the device is located within the waveg... | 05/04/2010 |
| 7706639 | Integrated optical waveform modulator A method of modulating an optical carrier. A target carrier modulation is computed based on an input data signal. An effective length of an optical modulator is then controlled based on the target carrier modulation. ... | 04/27/2010 |
| 7693354 | Salicide structures for heat-influenced semiconductor applications A salicide heater structure for use in thermo-optic and other heat-influenced semiconductor devices is disclosed. In one example embodiment, a system is provided that includes a silicon substrate, and a salicide heating element formed on the substrate, for deliverin... | 04/06/2010 |
| 7657129 | Optical focal plane data coupler Systems are disclosed that utilize electrical signals from detectors of an imaging focal plane array or antenna elements of an antenna array to modulate optical signals. Antenna or focal plane array elements are coupled to optical waveguides by way of whispering gal... | 02/02/2010 |
| 7650049 | Waveguide modulator and related modulation method A modulator including a waveguide propagating an electromagnetic wave of given wavelength (λ) with absorption. Means such as an electrical junction enable the residence time of the electromagnetic wave in the guide to be modified. A corresponding modulation method ... | 01/19/2010 |
| 7643707 | Lighting apparatus Provided is a lighting apparatus capable of uniformly and efficiently lighting a spatial light modulator. The lighting apparatus includes: a light source for outputting laser light; a multimode optical fiber in which the laser light outputted from the light source p... | 01/05/2010 |
| 7603001 | Method and apparatus for providing back-lighting in an interferometric modulator display device Methods and apparatus for providing light in an interferometric modulator device are provided. In one embodiment, a microelectromechanical system (MEMS) is provided that includes a transparent substrate and a plurality of interferometric modulators. The interferomet... | 10/13/2009 |
| 7590313 | Phased-array optical whispering gallery mode modulation and method A whispering gallery mode (WGM) resonator device and method capable of filtering sidebands of optical modulators are provided. The method includes providing an optical resonator adapted to support whispering gallery modes and forming a first field and a second field... | 09/15/2009 |
| 7590312 | Interferometer 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 differenc... | 09/15/2009 |
| 7580592 | Optical phase shift device and antenna system utilizing same A phase shift device of an optical fiber signal includes an actuator for changing the signal phase in at least one fiber portion by inducing the phase change by thermo-optical effect. An antenna system incorporating phase shift devices using the thermo-optical effec... | 08/25/2009 |
| 7577318 | Wavelength conversion layers with embedded crystallites The present invention is directed to a wavelength conversion layer (1) with a matrix layer (2) comprising embedded rare-earth-ion-doped micro-crystallites (3) and/or rare-earth-ion-doped amorphous particles, wherein said rare-earth-ion-doped mic... | 08/18/2009 |
| 7565038 | Thermo-optic waveguide apparatus Apparatus including a waveguide segment having a cladding that surrounds an optically-transmissive core extending along a path; a heater in thermal communication with the waveguide segment along at least a part of the path; a thermally-conductive substrate; a therma... | 07/21/2009 |
| 7565037 | Reducing depolarisation The present invention provides a method for reducing spreading of a pulse in a transmission line, said spreading being as a result of polarization mode dispersion, comprising inducing predetermined polarization rotations of particle or wave components of the pulse i... | 07/21/2009 |
| 7561759 | Optical modulator Optical modulator devices exhibiting improved response characteristics are constructed from a ring resonator having a tunable loss element positioned within the ring resonator structure and one or more phase shifters. By tuning and/or controlling the loss within the... | 07/14/2009 |
