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| Number | Title | Issue Date |
| 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 and a second optical signal. A waveguide provides an anomalous group... | 10/18/2011 |
| 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 selectively route a signal from the input wave guide to one or more of the ou... | 07/19/2011 |
| 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 driving the PLC are mounted on the same substrate. The IC is composed of a ... | 07/05/2011 |
| 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 operable to produce a reaction in response to the arrival of a predeterm... | 09/21/2010 |
| 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 which light from the optical fiber enters, and a w... | 06/08/2010 |
| 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 having a first segment and a second segment. The apparatus may furth... | 03/09/2010 |
| 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 selectively route a signal from the input wave guide to one or more of the ou... | 12/29/2009 |
| 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 and a plurality of first photonic crystals, disposed on the first subs... | 09/29/2009 |
| 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 incorporates the active section and the absorption section. Mirrors providing ... | 08/25/2009 |
| 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 optical frequency beam is incident on the one or more nanowire wavegui... | 07/14/2009 |
| 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 extendi... | 06/30/2009 |
| 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 operable to produce a reaction in response to the arrival of a predeterm... | 05/26/2009 |
| 7492976 | Flat dispersion frequency discriminator (FDFD) This invention provides a flat dispersion frequency discriminator (FDFD) capable of having a substantially flat dispersion with either a positive or negative dispersion along the spectrum region of the discriminator. This way, a FDFD may not cause substantial distor... | 02/17/2009 |
| 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 optical signal are received at a photon reactive material operable to ... | 12/16/2008 |
| 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 characteristics that change based upon the temperature of the material. | 11/25/2008 |
| 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 input signals and output said optical signal... | 11/18/2008 |
| 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 fabricated. And a total amount of the power supplied to the first and the ... | 10/21/2008 |
| 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 of a fUrther received first input signal (IS 1). When su... | 10/14/2008 |
| 7433549 | Optical modulator A high-speed optical modulator constructed from a number of lower speed intensity modulators integrated onto a single optical chip. ... | 10/07/2008 |
| 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. The acousto-optic device includes a substrate on which a SAW guide fo... | 09/30/2008 |
| 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 receiving element. The dispersion plane at an arbitrary point on the li... | 09/02/2008 |
| 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 actuation means. The reflecting members are each formed in a plate shape... | 08/19/2008 |
| 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 connected to the upper cladding region and a second electrode is connected... | 08/12/2008 |
| 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 facilitate RF resonance of the received RF signals; a photonic band ... | 08/05/2008 |
| 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 each spectral peak. The filter output is characterized as an integral... | 08/05/2008 |
| 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 spacing profile between two optical transmission waveguides. The spacin... | 07/15/2008 |
| 7394950 | Optical modulator An optical modulator of the Mach-Zehnder type including electrodes disposed above a substrate having a pair of linear portions of an optical waveguide includes a signal electrode to which modulating signals are applied; first and second earth electrodes; and a bias ... | 07/01/2008 |
| 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 generating optical signals. A first optical source (42) is opera... | 05/27/2008 |
| 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 the wavelength of the first light, (2) an optical fiber for propagatin... | 05/27/2008 |
| 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 unit for heating the grating portion to apply a temperature distribut... | 05/27/2008 |
| 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 signal, the laser having an external resonator for feedback of the tim... | 05/20/2008 |
| 7373050 | Optical communication module and connector A half region of an end face of an optical fiber is cut at an angle of 45° to form a reflecting surface. A light-emitting element is arranged so as to face the end face of the optical fiber. A photoreceptor element is arranged beside the optical fiber with the elem... | 05/13/2008 |
| 7368754 | Semiconductor integrated circuit, signal transmitting device, electro-optical device, and electronic apparatus The invention provides a semiconductor integrated circuit which allows a plurality of devices to be integrated compactly, that is, with high density; a signal transmitting device; an electro-optical device; and an electronic apparatus. A semiconductor integrated cir... | 05/06/2008 |
| 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 reduces amplitude noise based on a phase-sensitive optical amplifier tha... | 05/06/2008 |
| 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 couplers. The E-O transmitters receive electrical signals from the proce... | 04/29/2008 |
| 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 parameters of the grating biochip, and optimizing the parameters to enhanc... | 04/08/2008 |
| 7349098 | Simultaneous beam-focus and coherence-gate tracking for real-time optical coherence tomography Method and apparatus for achieving dynamic focus tracking during real-time optical coherence tomography (OCT) by simultaneously implementing geometric focus tracking (GFT) and coherence gate tracking (CGT). GFT tracking involves changing a position of the focal poin... | 03/25/2008 |
| 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 pressure sensors (14) are located in separate chann... | 03/04/2008 |
| 7340116 | Optical switch, optical modulator and wavelength variable filter An optical switch, an optical modulator, and a wavelength variable filter each have a simple configuration, which requires only a low driving voltage, which is independent of polarization, and which can operate at high speed. An optical switch includes a 3-dB couple... | 03/04/2008 |
| 7336879 | Two-dimensional photonic crystal slab, two-dimensional photonic crystal waveguide, and optical device A two-dimensional photonic crystal slab having a photonic band gap common to a light beam in the TE-like mode and a light beam in the TM-like mode includes a slab member containing a high refractive index material and low refractive index sectors, arranged in the sl... | 02/26/2008 |
