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| Number | Title | Issue Date |
| 7965943 | Multi-channel optical rotary transmission device with high return loss An optical rotating data transmission device comprises a first collimator arrangement for coupling-on first light-waveguides, and a second collimator arrangement for coupling-on second light-waveguides, which is supported to be rotatable relative to the first collim... | 06/21/2011 |
| 7756420 | System and method for shaping a waveform An optical transmission system for transmitting an optical pulse in a dielectric waveguide, the system including a filter for altering a shape of the optical pulse in both amplitude and phase with respect to time so as to substantially suppress the generation of thi... | 07/13/2010 |
| 7672594 | Optical communication system with light guide having variable slidable point of entry or exit An optical communication system is provided for conveying signals between multiple housing elements of a device, where respective optical detectors and optical light sources interact via a light guide associated with each communication path, where an optical signal ... | 03/02/2010 |
| 7444083 | Optical fiber transmission system with a plural emitting point transmitter In an optical signal transmission system which can perform high-speed optical transmission not lower than 1 Gbps, VCSEL has light-emission points. A core diameter of an optical fiber GI-POF is set to not lower than 200 μm, and the light-emission points of VCSEL are... | 10/28/2008 |
| 7437068 | Optical communication link An optical communication link has a plurality of light emitting elements and a plurality of light receiving elements associated with the respective light emitting elements, and a plurality of optical fibers each for conveying an optical signal emitted from one light... | 10/14/2008 |
| 7366382 | Optical beam diagnostic device and method An optical beam diagnostic device includes one or more sets of coherent optical fiber bundles, wherein one end of the coherent optical fiber bundles is arranged to receive optical information from a dynamic moving or static optical beam or beams, and the other end o... | 04/29/2008 |
| 7366421 | Single-to-multi mode converter and optical code division multiple access system using the same A single-to-multi mode converter and an optical code division multiple access system using the same. The mode converter includes first, second, and third optical waveguides. The first optical waveguide is formed of a single-mode optical fiber and outputs a single-mo... | 04/29/2008 |
| 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 end. A black matrix material is disposed adjacent to the light guides ... | 01/29/2008 |
| 7311450 | Color optical link using transparently jacketed plastic optical fiber and method for achieving the same Disclosed is a color optical link using a transparently jacketed plastic optical fiber that optically transmits data and uses light, scattered and emitted to the outside, for the purpose of illumination, and a method for achieving the color optical link. The color o... | 12/25/2007 |
| 7272293 | Device having a casing and /or interior acting as a communication bus between electronic components A device including: at least two electronic/electrical components; and a casing, the casing having at least a portion thereof acting as a communication bus for connecting the at least two electronic/electrical components. ... | 09/18/2007 |
| 7254289 | System and method to minimize modulation instability The present invention comprises the use of a fiber in a sensing optical fiber system operated in a region of negative chromatic dispersion to minimize modulation instability thereby enabling the identification and measurement of the information-carrying signals. The... | 08/07/2007 |
| 7248762 | Optical fiber transmission system with increased effective modal bandwidth transmission A multi-mode optical fiber link is described. The multi-mode optical fiber link includes a first spatial mode converter that is coupled to a first single mode optical fiber. The first spatial mode converter conditions a modal profile of an optical signal propagating... | 07/24/2007 |
| 7245832 | Radio communication apparatus An optical bus 30 optically connects each board of a signal processing section 22 and each board of a transmission/reception section 40 for transmitting an optical signal output to the optical bus 30 by each board of the signal processing... | 07/17/2007 |
| 7230967 | Waveguide laser A laser waveguide, where the laser waveguide can be formed by electrodes and at least one sidewall in a manner allowing a more compact structure than previously provided. Protrusions in the electrodes allow easier laser starts, and sectional sidewall(s) allow easier... | 06/12/2007 |
| 7215884 | Optical demultiplexer having bragg diffration grating and optical communication module using the optical demultiplexer An optical demultiplexer having at least one Bragg diffraction grating for minimizing crosstalk on the sides of transmitting and receiving optical signals, as well as an optical communication module using the optical demultiplexer. The optical demultiplexer has firs... | 05/08/2007 |
| 7197060 | Waveguide laser A laser waveguide, where the laser waveguide can be formed by electrodes and at least one sidewall in a manner allowing a more compact structure than previously provided. Protrusions in the electrodes allow easier laser starts, and sectional sidewall(s) allow easier... | 03/27/2007 |
| 7187868 | Wavelength division multiplexing optical transmission system using a spectral inversion device A WDM system includes a transmission station, a receiving station, a first optical path and a second optical path. The first optical path includes a first section and a second section, the second section being capable of compensating at least partially the dispersio... | 03/06/2007 |
| 7162161 | Optical communications system and method of protecting an optical route A section of tapered optical fiber is provided to protect optical components from catastrophic damage that may propagate within an optical route. The tapered section functions as a fuse to arrest the propagation of optical power induced damage by leaking optical pow... | 01/09/2007 |
| 7153034 | Method of constructing an optical transmission line and an optical transmission line The present invention discloses an optical transmission line constructing method comprising the steps of connecting a plurality of optical fibers differing from each other in terms of a transmission characteristic; making inspection light incident on an entrance end... | 12/26/2006 |
| 7058300 | Data transmission rate arbitration method and optical communication apparatus A transmitting-end device generates a pilot signal with a pilot signal generation section, and transmits a pilot signal to a receiving-end device. At the receiving-end device, a transmission rate modification section detects the transmission band of an optical trans... | 06/06/2006 |
| 7054560 | Configuration for detecting optical signals of a planar optical circuit A configuration for detecting optical signals of at least one optical channel of a planar optical circuit. At least one deflection device is provided, which couples the optical signals of at least one optical channel at least partly out of the plane of the circuit, ... | 05/30/2006 |
| 7050663 | Integrated optical circuit having an integrated arrayed waveguide grating (AWG) and optical amplifier(s) An integrated optical circuit includes waveguides formed in the integrated optical circuit. One set of waveguides is a set of optical amplifiers doped with rare earth ions. A second set of waveguides is a multiplexer or demultiplexer, such as an arrayed waveguide gr... | 05/23/2006 |
| 7050475 | Waveguide laser A laser waveguide, where the laser waveguide can be formed by electrodes and at least one sidewall in a manner allowing a more compact structure than previously provided. Protrusions in the electrodes allow easier laser starts, and sectional sidewall(s) allow easier... | 05/23/2006 |
| 7039322 | Optical communication apparatus An optical communication apparatus comprises an optical transmitter (1) which emits light signals corresponding to external electric signals (11) using light emitted from a short-wavelength light-emitting element (14) such as a yellow light-emit... | 05/02/2006 |
| 7039274 | Light signal transmitting device and signal processing device In a device of the present invention for allowing signal light to enter a light guide body using an optical fiber, a light guide body, which is constituted by dispersing particles for scattering the signal light in an optical medium, is selected as a light guide pat... | 05/02/2006 |
| 7016564 | Apparatus for switching optical signals An apparatus for switching optical signals, comprising a first group of port cards adapted to receive input optical signals to be switched by the apparatus and a second group of port cards adapted to provide switched optical signals to an entity external to the appa... | 03/21/2006 |
| 6909821 | Network for distributing signals to a plurality of users A network for distributing signals to a plurality of user apparatuses having a distribution unit with a plurality of ports, and a plurality of optical-fiber cables connected to the ports and suitable to make the plurality of ports of the distribution unit communicat... | 06/21/2005 |
| 6871023 | Spread polarization transmitter and associated system and method of operation A spread polarization transmitter for transmitting at least one light signal comprises a spread-spectrum communication apparatus and a polarization modulator. The spread-spectrum communication apparatus modulates the at least one light signal according to a spread-s... | 03/22/2005 |
| 6865343 | Simulation of electro-optical connections that takes spatial direction into consideration Simulation of the transmission behavior of opto-electronic connections, by which the transmitter or the receiver is represented by at least two optical outputs or inputs and the optical line is represented by corresponding multi-poles, considers the spatial distribu... | 03/08/2005 |
| 6819849 | Intrusion detection system for secure fiber optics Methods and apparatus are disclosed for an intrusion detection system for secure fiber optic communication systems. A guard signal is transmitted over the optical fiber communication link and both the modal power and modal phase delay of this signal are monitored. I... | 11/16/2004 |
| 6801687 | Apparatus and method for generating a mode-scrambled optical signal using a VCSEL array An apparatus and method for generating a mode-scrambled optical signal using a VCSEL array. An array of vertical cavity surface-emitting lasers (VCSELs) are employed to generate respective of optical signals comprising modulated laser beams that are optically couple... | 10/05/2004 |
| 6792213 | Optical signal transmitting apparatus, optical data bus system and signal processing apparatus The utilization efficiency of light is to be enhanced. Optical signals are brought to incidence on incidence/emission portions provided on the end face of a light transmitting medium where a reflective optical diffusion layer is arranged. The incident optical signal... | 09/14/2004 |
| 6760110 | Low coherent reflectometer A low coherent reflectometer uses low coherent beams for measurement of refletance and refleting positions with respect to a measured optical circuit which includes a reflecting point. The low coherent beams are branched to produce measurement beams (DL) and local b... | 07/06/2004 |
| 6740537 | Process for fabricating a microelectromechanical optical component A process for fabricating a microelectromechanical optical component from a silicon substrate is disclosed. The component comprises optical propagation guides; a wall which can move with respect to the propagation guides; and an electrostatic actuator associated wit... | 05/25/2004 |
| 6728490 | Optical transmitter, optical receiver, optical transmission system, and optical transmission method An optical transmitter in accordance with the present intention consists of a light source and an interference unit. The interference unit consists of an optical power divider, an intensity modulator, a gain variation device, a phase shifter, an optical coupler, and... | 04/27/2004 |
| 6694103 | Method for switching, amplification and modulation of unidirectional distributively coupled pulses and waves The invention concerns the area of nonlinear fiber and integrated optics, to be exact the area of completely optical switches, modulators and optical transistors, in which solitons are used. The technical problem of the invention is the diminution of pump... | 02/17/2004 |
| 6690890 | Single fiber Sagnac interferometer based secure communication system The system includes a generally broadband, low coherence length light source that injects light into a fiber beamsplitter that is used to generate counterpropagating light beams in a Sagnac loop. The loop includes two facing fiber beamsplitters connected ... | 02/10/2004 |
| 6654564 | Tunable dispersion compensator A method and device is disclosed for dispersion compensation of an optical signal. By providing two filters having a sloped dispersion and opposite in sign over a wavelength band wherein one filter is tunable, a controllable amount of dispersion can be in... | 11/25/2003 |
| 6607311 | Method and system transmitting optical signals generated by multi-line sources via WDM optical network A transmission of optical signals generated by multi-line optical sources is provided via multichannel WDM optical network. Each multi-line optical source generates optical spectral lines within designated spectral range associated with the spectral windo... | 08/19/2003 |
| 6522821 | Dispersion-compensating optical fiber and optical transmission system including the same The present invention relates to a dispersion-compensating optical fiber which can transmit, with a low loss, light signals having a high power; and an optical transmission system including the same. This dispersion-compensating optical fiber is insured i... | 02/18/2003 |
