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7603003 |
Nanocomposites
This invention provides composite materials comprising nanostructures (e.g., nanowires, branched nanowires, nanotetrapods, nanocrystals, and nanoparticles). Methods and compositions for making such...
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7596288 |
Micro displacement sensor
A micro displacement sensor includes a first photonic crystal module, a second photonic crystal module, a light source and a detector. The first photonic crystal module includes a first substrate...
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7585097 |
Light pipe providing wide illumination angle
A light pipe is configured to provide a wide effective angle of illumination while simultaneously providing a substantially uniform distribution of light along a length of the light pipe. One or...
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7583329 |
Electro-optical device substrate, electro-optical device and electronic apparatus
An electro-optical device substrate includes a substrate, a plurality of data lines, a plurality of scanning lines, pixel electrodes, and transistors. The plurality of data lines and the plurality...
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7580595 |
Data transmission optoelectric device
An optoelectronic data transmission device has an active section with an active element that generates an optical gain if a forward bias is applied, and an absorption section. A waveguide...
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7577324 |
Methods to reduce polarization dependent loss in planar lightwave circuits
Polarization dependent loss may be reduced by providing at least one dummy waveguide or at least one dummy metal structure. Polarization dependent loss may also be reduced by imposing a mechanical...
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7561760 |
System and method for optical beam steering using nanowires and method of fabricating same
An apparatus and a method for steering optical frequency beams using nanowire. A method includes providing one or more nanowire waveguide arrays, generating an optical frequency beam, wherein the...
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7559486 |
Apparatuses and methods for forming wireless RF labels
Apparatuses and methods for forming wireless RF labels are claimed. In one embodiment, a flexible layer may be made to receive an array of integrated circuit chips The integrated circuit chips may...
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7555226 |
Automatic bias control for an optical modulator
An automatic bias controller for an optical modulator is provided. The automatic bias controller comprises a driver for providing an electrical data signal to the modulator and a bias voltage...
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7555174 |
Coplanar waveguide line
A coplanar waveguide line comprising
a substrate; a central electrode strip on the substrate; first and second electrode strips disposed on opposite sides of the central electrode strip and...
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7546005 |
Optical switch and path switching method
An optical switch not having waveguide crossings, as in a matrix switch, enabling input/output path switching of N×N, and not increasing the optical loss or the size when the number of channels...
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7546004 |
Photonic interconnect system
A photonic interconnect system avoids high capacitance electric interconnects by using optical signals to communicate data between devices. The system can provide massively parallel information...
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7542631 |
Optical transmission system
An optical transmission system which provides bandwidth restricted optical signal comprises an input terminal ( 10 ) for accepting an electrical binary signal, an amplifier ( 12 ) for amplifying...
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7539360 |
Monitoring modulator bias using photon absorption
Monitoring a bias point of an optical modulator includes receiving an optical signal modulated by the optical modulator. Photons of the optical signal are received at a photon reactive material...
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7536066 |
Semiconductor chip module
In a semiconductor chip module, a transmission optical waveguide device to be mounted in the proximity of the side face of a semiconductor chip on a circuit board includes an input optical...
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7535434 |
Light emission control for forming two-dimensional and three-dimensional images
Systems and methods are disclosed for providing a more robust flat panel display by using the Faraday effect to control light emission from a solid state material so as to form two-dimensional or...
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7529454 |
Photonic crystal surface states
A photonic crystal may be configured to support a surface state for logic.
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7519240 |
Multi-section coupler to mitigate guide-guide asymmetry
A wavelength independent multi-section optical coupler having at least three optical couplers, and at least two differential phase cells. Each optical coupler has two waveguides forming a coupling...
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7515779 |
Optical semiconductor device
An optical semiconductor device has a heater, an optical waveguide layer, a first electrode and a second electrode. The heater is provided on a first semiconductor region and has more than one...
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7515774 |
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...
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7509006 |
Optical device
An optical device wherein an optical waveguide is formed on a dielectric substrate, the optical device includes an input part and an output part where the optical waveguide and corresponding...
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7499603 |
Range extended electrooptic modulator
Methods, systems, and devices are provided for an electrooptical modulator. One method embodiment includes receiving an optical input signal to an electrooptical modulator. A first voltage input is...
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7489836 |
Optical interconnect system for high speed microprocessor input/output (IO)
A microchip includes optical layers with integrated waveguides and modulators. A continuous wave light beam coupled to incoming waveguide(s) is modulated and transmitted off-chip by outgoing...
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7483642 |
Receiver for OTDM/PDM optical signals
A receiver for an OTDM/PDM pulse train ( 10 ) in which the pulses ( 12 ) have alternating polarizations (P 1, P 2 ) has a polarization insensitive optical switch ( 16; 161, 162, 163, 164 ) for...
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7474810 |
Method and apparatus for controlling light flux with sub-micron plasmon waveguides
Apparatuses and methods for modulating electromagnetic radiation are disclosed. A plasmon waveguide including an array of metallic nanoparticles disposed on a dielectric substrate is provided. The...
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7466877 |
Monitoring modulation alignment variation using photon absorption
Monitoring modulation alignment variation of optical modulators includes receiving an optical signal at an input fiber. The optical signal has been modulated by optical modulators. Photons of the...
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7460739 |
Lithium niobate optical modulator
An optical modulator comprises a Z-cut lithium niobate substrate ( 21 ) on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides ( 23, 25 ) lying beneath a buffer...
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7457488 |
Light transmission with temperature sensitive materials
One embodiment includes a connector for an optical pathway. The connector includes a body formed, at least in part, with a temperature sensitive material having one or more light transmission...
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7454091 |
Integrated optical network with controlled optical beam deflection and optical transmitter
Integrated optical network comprising:
an array of optical waveguides having respective output ends defining a array of radiating elements, wherein said guides receive respective optical...
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7447386 |
Cascaded modulator system and method for QKD
A cascaded modulator system ( 20 ) and method for a QKD system ( 10 ) is disclosed. The modulator system includes to modulators (M 1 and M 2 ) optically coupled in series. A parallel shift...
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7440643 |
Variable light controlling device and variable light controlling method
A variable light controlling device comprising a substrate, an optical waveguide disposed on the substrate, a first heater and a second heater to change the optical waveguide's temperature is...
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7437083 |
Wavelength converter
A wavelength converter for binary optical signals includes an interferometer structure ( 110 ) for generating an output signal by modulating a received local signal (LS) according to the modulation...
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7433549 |
Optical modulator
A high-speed optical modulator constructed from a number of lower speed intensity modulators integrated onto a single optical chip.
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7430344 |
Acousto-optic device and fabrication method of acousto-optic device
An acousto-optic device is disclosed which can achieve both of suppression of secular change and prevention of device damage and can maintain a stabilized wavelength selection filtering operation....
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7421185 |
Optical receiving device, free space optics transmission apparatus, receiving apparatus
An optical receiving device includes an optical receiving element and a light collecting portion having an output surface close to or in contact with the optical receiving surface of the optical...
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7415172 |
Diffractive waveguide-spatial optical modulator
Disclosed herein is a diffractive waveguide-spatial optical modulator. The diffractive waveguide-spatial optical modulator includes a substrate member, a plurality of reflecting members, and an...
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7412144 |
Photonic crystal-based optical waveguide modulator
A waveguide has upper and lower cladding regions. A core of the waveguide made of a non-linear optical polymer is positioned between the upper and lower cladding regions. A first electrode is...
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7409116 |
RF to optical converter for RF imaging with optical sensors
A radio frequency (RF) to optical converter for RF imaging, wherein the converter comprises an array of RF antenna pixels adapted to receive RF signals, wherein the RF antenna pixels are adapted to...
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7409115 |
Method and apparatus for spectrum deconvultion and reshaping
A method and apparatus for filter spectrum deconvolution and reshaping include providing a filter output of a spectrum signal and determining the intensity and wavelength of the spectrum signal at...
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7400788 |
Linearized optical modulator having a plurality of coupling functions
Invention discloses an apparatus that provides linear optical modulation of light carrier signals by an electrical modulation signal. Linearized modulation is achieved through the selection of a...
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7379677 |
Method of wavelength conversion and wavelength converter
The wavelength converter comprises (1) an optical multiplexer for multiplexing an amplitude-modulated first light and reference light, which is continuous light having a wavelength different from...
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7379672 |
Photonic RF distribution system
The present photonic RF generation and distribution system provides a system and method for distributing an RF output signal. The photonic RF distribution system includes two optical sources for...
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7379640 |
Tunable dispersion compensator and method of manufacturing the same
A tunable dispersion compensator in which a heater portion can be easily constructed to reduce cost. A tunable dispersion compensator includes: an optical fiber having a grating portion; a heating...
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7376354 |
All optical clock recovery
All optical clock recovery includes a transmitter for generating an optical timing signal. The transmitter includes a semiconductor laser for the production of a dynamically synchronizable timing...
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7369779 |
Regeneration of optical phase modulated signals
A regenerator for restoring the originally encoded optical phase of a differential-phase-shift-keyed signal. In an embodiment, the regenerator simultaneously provides limiting amplification and...
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7366368 |
Optical add/drop interconnect bus for multiprocessor architecture
An optical bus interconnects two or more processors in a multiprocessor system. One or more electrical-to-optical (“E-O”) transmitters are optically coupled to the optical bus using optical...
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7355713 |
Method for inspecting a grating biochip
A method for inspecting a grating biochip comprises the steps of irradiating a grating biochip using a light beam, measuring a diffracted light using a photodetector, selecting a plurality of...
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7340118 |
Fuel injectors with integral fiber optic pressure sensors and associated compensation and status monitoring devices
Fuel injectors ( 10 ) for internal combustion engines are modified and equipped with fiber optic fuel pressure sensors ( 12 ) and fiber optic combustion pressure sensors ( 14 ). The combustion...
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7324278 |
Black matrix light guide screen display
Provided is a black matrix light guide screen display. In a particular embodiment, provided are a plurality of aligned light guides, each having an input end, a midsection and a magnifying output...
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7315663 |
Electronically controlled photonic crystal optical switch
Various embodiments of the present invention are directed to photonic crystal switches. In one embodiment, a photonic crystal switch a photonic crystal switch includes a photonic-crystal-based...
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