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8175422 |
Optical modulator
In an optical modulator, a first electrode portion having a plurality of first electrodes is provided on the upper surface of a base part having a periodically-poled structure and a second...
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8139904 |
Method and apparatus for implementing optical deflection switching using coupled resonators
A method of implementing optical deflection switching includes directing a tuning operation at a specific region of coupled optical resonators coupled to an input port, a first output port and a...
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8135277 |
Delayed optical router/switch
A system, method, and apparatus for delayed optical router based on slow light and nondegenerate four-wave mixing processes are presented, in which three laser pulses interact with a three-level...
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8086078 |
Electronic device
An electronic device in which a signal electrode has a bent portion. Earth electrodes are formed with the signal electrode between. A width of a gap at the bent portion between the signal electrode...
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8078016 |
Optical circuit device and method
Techniques are generally disclosed for optical devices that may be used to implement a variety of logic devices or other circuits by optical means. Example optical devices use a photodiode to alter...
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8070343 |
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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8041157 |
Silicon integrated photonic optical parametric amplifier oscillator and wavelength converter
The present invention is directed towards systems and methods for adjusting intensity, wavelength and higher and lower frequency components of an optical signal. Photonic apparatus receives a first...
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8019185 |
Unit-cell array optical signal processor
This invention provides a versatile unit cell as well as programmable and reconfigurable optical signal processors (such as optical-domain RF filters) that are constructed from arrays of those unit...
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8009942 |
Optical isolator
Various optical isolator embodiments are disclosed. Embodiments comprise a waveguide section utilizing materials that induce a propagation constant shift that is propagation-direction-dependent....
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7995891 |
Photonic band gap router
An arrangement includes a photonic band-gap assembly comprising at least one input wave guide and at least one output wave guides, and at least one routing element responsive to signals to...
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7983514 |
Photonic band gap router
An arrangement includes a photonic band-gap assembly comprising at least one input wave guide and at least one output wave guides, and at least one routing element responsive to signals to...
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7974502 |
Optical module and optical switch
An optical module controls its output characteristics electrically and an optical switch constitutes the optical module. An optical waveguide circuit (PLC) and an electronic circuit (IC) for...
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7970245 |
Optical biosensor using SPR phenomenon
An optical biosensor using a surface plasmon resonance phenomenon includes an input optical waveguide including a first optical mode converting unit for converting a core mode to a cladding mode;...
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7844149 |
Humidity tolerant electro-optic device
The invention relates to an electro-optic modulator structure containing an additional set of bias electrodes buried within the device for applying bias to set the operating point. Thus the RF...
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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...
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7826688 |
Enhancing the sensitivity of resonant optical modulating and switching devices
Embodiments of the inventions described herein comprise a device and method for manipulating an optical beam. The method comprises propagating an optical beam through a waveguide in proximity to a...
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7801393 |
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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7792398 |
Optically controlled optical-path-switching-type data distribution apparatus and distribution method
Data to be sent are, in a data communication unit, first divided into electric signal packets by a data transmission/receipt control unit, whereby an electric signal sequence tag is added to each...
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7782520 |
Duobinary modulation with a lumped-element Mach-Zehnder device
Duobinary and NRZ modulation of an X-Gb/s optical signal is achieved with a lumped element InP Mach-Zehnder device configured to operate at X/k-Gb/s where k>1 and arranged in a push-pull...
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7782911 |
Method and apparatus for increasing fiber laser output power
A fiber laser with reduced stimulated Brillouin scattering includes a spool having a height and characterized by an induced temperature gradient with the height. The fiber laser also includes a...
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7764851 |
Optical modulators
An optical modulator has an optical waveguide substrate having a pair of principal surfaces, a pair of side surfaces an incident face and exit face of light, the substrate being composed of a...
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7760970 |
Single photon absorption all-optical modulator in silicon
A single-photon absorption all-optical modulator, systems employing the same, and methods of making and using the same. An illustrative example is provided based on silicon semiconductor technology...
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7734121 |
Bidirectional optical module
A bidirectional optical module having a device 1 for emitting transmitting signal light, an optical fiber 8 which the transmitting signal light from the device enters, a light-receiving device 9...
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7728268 |
Solid-state imaging device and electronic device
A solid-state imaging device including a number of pixels, each of which having a photoelectric converting portion, and which are arranged one-dimensionally or in a two-dimensional matrix. The...
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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...
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7711213 |
Nanowire-based modulators
Various embodiments of the present invention are directed to nanowire-based modulators that can be used to encode information in a carrier channel of electromagnetic radiation. In one embodiment of...
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7693363 |
Plasmostor: a-metal-oxide-si field effect plasmonic modulator
The invention is a system and method for performing all-optical modulation. A semiconductor layer having a defined thickness has an insulator adjacent one surface of the semiconductor. Conductive...
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7689070 |
High frequency electrical signal control device and sensing system
A high frequency electrical signal control device comprises a transmitter for generating a high frequency electrical signal, a receiver, a transmission line for propagating the electrical signal,...
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7680361 |
Optical buffer device
An optical buffer device includes plural optical memory elements that are capable of holding light and an optical delay element. The plural optical memory elements are arranged on an optical path...
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7676121 |
Thermo-optic tuning of a multi-directional optical waveguide
Various embodiments provide an apparatus and a method for operating the apparatus. The apparatus, in one embodiment, may include an optical waveguide located over a substrate, the optical waveguide...
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7668417 |
Integrated termination for EO modulator with RF signal monitoring functionality
The invention relates to RF termination for reducing electrical signal reflections at the end of transmission line electrodes on an electro-optical (EO) optical modulator. The disclosed termination...
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7657132 |
Optoelectronic modulator and electric-field sensor with multiple optical-waveguide gratings
An optoelectronic-RF device has at least one optical modulator/sensor comprising at least two cascaded optical-waveguide gratings and at least one non-grating optical waveguide segment...
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7657131 |
Systems and methods for integrated optical circuitry for high data rate optical transmission and reception
Embodiments include systems and methods for integrated circuitry optical modulation. In one embodiment, an integrated circuit comprises an optical waveguide enabling multi-level modulation. The...
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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...
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7639900 |
Photonic band gap router
An arrangement includes a photonic band-gap assembly comprising at least one input wave guide and at least one output wave guides, and at least one routing element responsive to signals to...
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7639910 |
Optical module and method of packaging the same
An optical module is configured with a combination of a single-mode oscillating light source and an optical filter. In this optical module, the single-mode oscillating light source outputs a...
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7628547 |
Optical module and optical communications device
An optical module includes: a light source; a variable transmissivity member that is disposed on a light path of light emitted from the light source with a spacing from the light source, the...
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7626210 |
Low profile side emitting LED
Low profile, side-emitting LEDs are described, where all light is efficiently emitted within a relatively narrow angle generally parallel to the surface of the light-generating active layer. The...
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7625136 |
Optical module and optical communication device
An optical module includes a light source, a variable transmittance member disposed on a light path of output light from the light source distant from the light source, and a coupling section for...
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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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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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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 extending...
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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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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 said...
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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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