Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
Patents for H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125)
12/2003
12/04/2003US20030223687 Closed-loop control of tunable optical wavelength filters
12/04/2003US20030223682 Optical add/drop node and method
12/04/2003US20030223405 WDM metropolitan access network architecture based on hybrid switching
12/04/2003US20030223380 Ring network system
12/04/2003US20030223106 Optical fiber amplification method and apparatus for controlling gain
12/04/2003US20030223104 Combining and distributing amplifiers for optical network and method
12/04/2003US20030223056 Optical circuits for tunable second order PMD compensation and tunable dispersion compensation
12/04/2003US20030222696 DC offset cancellation circuit, differential amplification circuit with DC offset cancellation circuit, photo-electric pulse conversion circuit, pulse shaping circuit, and pulse generation circuit
12/04/2003US20030222587 Universal lighting network methods and systems
12/04/2003US20030222208 Method and apparatus for monitoring the power of a multi-wavelength optical signal
12/03/2003EP1367754A2 WDM metropolitan access network architecture based on hybrid switching
12/03/2003EP1367753A2 Method and system for testing during operation of an open ring optical network
12/03/2003EP1367744A2 Automatic dispersion compensation device and compensation method
12/03/2003EP1367743A1 Polarisation mode dispersion compensator
12/03/2003EP1366588A1 A flexible wdm ring network
12/03/2003EP1366583A2 Method and system for processing downstream packets of an optical network
12/03/2003EP0939955B1 Flying optical head with dynamic mirror
12/03/2003EP0824804B1 Optical signal transmitter, system and method of transmission
12/03/2003CN2590311Y Luminous indicating jumper wire
12/03/2003CN2590290Y Multi-wavelength optical parameter high-power fiber-optical amplifier
12/03/2003CN2590289Y Transmitting-receiving integrated TTL electrical level interface optical module
12/03/2003CN2590288Y Optical-division multiplexer of lithium niobate crystal holographic grating
12/03/2003CN2590018Y High density optical cable for multiplayer optical fibre unit
12/03/2003CN1460336A Sensor for receiving device for cooperation with optical fiber
12/03/2003CN1460315A Base for cabinet of electric switchboard
12/03/2003CN1460194A Negative-dispersion optical fiber and optical transmission line incorporating same
12/03/2003CN1459934A Method of increasing transmitting laser dispersing restricted distance in optical fiber transmission system
12/03/2003CN1459933A Method of circuit business automatic distribution in synchronous digital system optical transmission system
12/03/2003CN1459932A Electromagnetic compatible testing method of photo electric conversion module
12/03/2003CN1459659A 宽带raman放大器 Broadband raman amplifiers
12/03/2003CA2430974A1 Lossless optical divider/combiner with pump diversion for scalable optical networks
12/02/2003US6658217 Optical receiver
12/02/2003US6658216 Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission system
12/02/2003US6658215 Arrangement for mitigating first order and second-order polarization mode dispersion in optical fiber communication systems
12/02/2003US6658214 Optical space transmission apparatus and information transmission method
12/02/2003US6658212 Polarization-independent, configurable optical multiplexer
12/02/2003US6658211 Optical signal repeater and output level control method used in this repeater
12/02/2003US6658210 Interleaved bidirectional WDM channel plan
12/02/2003US6658175 Switch for optical signals
12/02/2003US6658035 Tunable laser source with integrated optical amplifier
12/02/2003US6658030 Laser safety method and device for duplex open loop parallel optical link
12/02/2003US6657783 Method and apparatus for aligning telescopes within a free-space optical communication system
12/02/2003US6657779 Optical transmission system
12/02/2003US6657778 Optical amplification repeater and optical amplification repeating and transmitting system
12/02/2003US6657777 Interleaved lumped raman amplifier structure based on highly nonlinear fibers for densely spaced WDM channels
12/02/2003US6657776 Pump source including polarization scrambling in Raman amplified optical WDM systems
12/02/2003US6657774 Amplifier system with distributed and discrete Raman fiber amplifiers
12/02/2003US6657773 Wavelength selector and converter and a photonic switching matrix incorporating it
12/02/2003US6657770 Programmable optical multiplexer/demultiplexer
12/02/2003US6657769 Low voltage, optical phase modulator
12/02/2003US6657757 High-throughput low-latency next generation internet network using optical label switching and high-speed optical header generation detection and reinsertion
12/02/2003US6657186 Chromatic dispersion discriminator
11/2003
11/29/2003CA2429778A1 Optical module
11/27/2003WO2003098846A1 Device for optically transmitting signals between two units moving relative to one another
11/27/2003WO2003098845A2 Infrared connection device
11/27/2003WO2003098844A1 Digital performance monitoring for an optical communications system
11/27/2003WO2003098843A1 Optical transmission system with low power consumption
11/27/2003WO2003098297A1 Multiphase optical pulse generator
11/27/2003WO2003058858A3 Method for higher-order dispersion compensation
11/27/2003WO2003040776A3 Highly negative-slope dispersion compensating optical fiber and transmission system including the same
11/27/2003WO2003021835A3 Technique for channel count and power control in optical networks
11/27/2003WO2003017538A9 Fiber optic sensor signal amplifier
11/27/2003US20030219259 Phase modulation for an optical transmission system
11/27/2003US20030219256 Optical signal transmission system and transmitter
11/27/2003US20030219255 Distributed terminal optical transmission system
11/27/2003US20030219253 Proactive techniques for sustenance of high-speed fixed wireless links
11/27/2003US20030219251 Wireless optical system and method for point-to-point high bandwidth communications
11/27/2003US20030219250 Optical signal-to-noise monitor having increased coherence
11/27/2003US20030219195 Optical top hat pulse generator
11/27/2003US20030218796 Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, and optical transmission system, using same
11/27/2003US20030218790 Chirp control in a high speed optical transmission system
11/27/2003US20030218759 Wavelength monitoring device and method of tunable laser sources
11/27/2003US20030218738 Optical flow monitor
11/27/2003US20030218124 Passive, temperature compensated techniques for tunable filter calibration in Bragg-grating interrogation systems
11/26/2003EP1365529A2 Main signal controlling apparatus and method in a wdm optical communications system
11/26/2003EP1365528A1 Optical transmission system incorporating optical filters
11/26/2003EP1365527A1 Optical CDMA receiver
11/26/2003EP1365526A1 Method and apparatus for receiving/transmitting an optical signal through the air with a variable fading margin
11/26/2003EP1365525A2 Test structure for simultaneously characterizing two ports of an optical component using interferometer-based optical network analysis
11/26/2003EP1364478A2 Method and system for handling optical signals
11/26/2003EP0931392B1 Apparatus and method for restoring fiber optic communications network connections
11/26/2003CN2588713Y Digital infraved ray surround stereo earphone
11/26/2003CN2588675Y Flat WDM device
11/26/2003CN2588672Y Light receiver
11/26/2003CN2588671Y Optical transmission submodule for optical fibre communication system
11/26/2003CN2588670Y Transmitter for optical fibre communciation
11/26/2003CN2588669Y DVD superoptical fibre transmitter
11/26/2003CN1459160A Apparatus and method for optical communication protection
11/26/2003CN1459158A System and method for wavelength modulated free space optical communication
11/26/2003CN1459157A Nonlinear device comprising aspectrally broadening fiber
11/26/2003CN1458798A Method for realizing business roote configuration in three stage CLOS matrix
11/26/2003CN1458759A Light signal modulation method, transmission method and system in wavelnth division mulplexing light transmission system
11/26/2003CN1458753A Up-stream optical transmission system for cabled TV
11/26/2003CN1458752A Light carrier frequence division multiplex transmission system
11/26/2003CN1458751A Multiple business two-way transmission optical terminal machine
11/26/2003CN1458750A Business time-slot distribution method based on synchronous digital series multiplex section protective ring
11/26/2003CN1458749A Safe quantum communication method
11/26/2003CN1129029C Long-wave long-fibre-optical amplifier
11/25/2003US6654958 Reference signal generator for return path aligning
11/25/2003US6654565 System and method for increasing upstream communication efficiency in an optical network
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