DE60125517D1 - Verfahren und vorrichtung zur verschachtelten optischen einseitenbandmodulation - Google Patents

Verfahren und vorrichtung zur verschachtelten optischen einseitenbandmodulation

Info

Publication number
DE60125517D1
DE60125517D1 DE60125517T DE60125517T DE60125517D1 DE 60125517 D1 DE60125517 D1 DE 60125517D1 DE 60125517 T DE60125517 T DE 60125517T DE 60125517 T DE60125517 T DE 60125517T DE 60125517 D1 DE60125517 D1 DE 60125517D1
Authority
DE
Germany
Prior art keywords
optical
band modulation
port
bandpass filter
sided band
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60125517T
Other languages
English (en)
Other versions
DE60125517T2 (de
Inventor
I Way
Chia Wu
Ming-Bing Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vello Systems Inc
Original Assignee
OpVista Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OpVista Inc filed Critical OpVista Inc
Application granted granted Critical
Publication of DE60125517D1 publication Critical patent/DE60125517D1/de
Publication of DE60125517T2 publication Critical patent/DE60125517T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/564—Power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
DE60125517T 2000-03-07 2001-03-05 Verfahren und vorrichtung zur verschachtelten optischen einseitenbandmodulation Expired - Lifetime DE60125517T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US18738300P 2000-03-07 2000-03-07
US187383P 2000-03-07
US09/575,811 US6525857B1 (en) 2000-03-07 2000-05-22 Method and apparatus for interleaved optical single sideband modulation
US575811 2000-05-22
PCT/US2001/007014 WO2001067648A2 (en) 2000-03-07 2001-03-05 Method and apparatus for interleaved optical single sideband modulation

Publications (2)

Publication Number Publication Date
DE60125517D1 true DE60125517D1 (de) 2007-02-08
DE60125517T2 DE60125517T2 (de) 2007-10-04

Family

ID=26882975

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60125517T Expired - Lifetime DE60125517T2 (de) 2000-03-07 2001-03-05 Verfahren und vorrichtung zur verschachtelten optischen einseitenbandmodulation

Country Status (6)

Country Link
US (3) US6525857B1 (de)
EP (1) EP1264424B1 (de)
AT (1) ATE349820T1 (de)
AU (2) AU2001241810A1 (de)
DE (1) DE60125517T2 (de)
WO (2) WO2001067647A2 (de)

Families Citing this family (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6559994B1 (en) * 1999-08-18 2003-05-06 New Elite Technologies, Inc. Optical fiber transmitter for long distance subcarrier multiplexed lightwave systems
US6525857B1 (en) * 2000-03-07 2003-02-25 Opvista, Inc. Method and apparatus for interleaved optical single sideband modulation
US7499647B2 (en) * 2000-05-22 2009-03-03 Opvista Incorporated Fully protected broadcast and select all optical network
US7120359B2 (en) * 2000-05-22 2006-10-10 Opvista Incorporated Broadcast and select all optical network
US20020012495A1 (en) * 2000-06-29 2002-01-31 Hiroyuki Sasai Optical transmission system for radio access and high frequency optical transmitter
US6788899B2 (en) 2000-09-11 2004-09-07 Winston I. Way Dynamic wavelength add/drop multiplexer for UDWDM optical communication system
JP3532866B2 (ja) * 2001-02-15 2004-05-31 東京通信機工業株式会社 片側側波帯抑圧光被変調波生成装置
JP4646048B2 (ja) * 2001-03-02 2011-03-09 日本電気株式会社 単一側波帯信号光の生成方法および単一側波帯信号光の生成回路
US20020130251A1 (en) * 2001-03-16 2002-09-19 Myers Michael H. Photonic wavelength error detector
US20020131112A1 (en) * 2001-03-16 2002-09-19 Hait John N. Frequency-shifted, hyper-dense signal method
US20020131107A1 (en) * 2001-03-16 2002-09-19 Hait John N. Hyper-dense photonic signal apparatus
US7027505B2 (en) * 2001-05-04 2006-04-11 Al-Eidan Abdullah A System and method for bandwidth compression of frequency and phase modulated signals and suppression of the upper and lower sidebands from the transmission medium
US7599627B2 (en) 2001-05-31 2009-10-06 Teradvance Communications, Llc Method and system for a polarization mode dispersion tolerant optical homodyne detection system with optimized transmission modulation
GB0122623D0 (en) * 2001-09-19 2001-11-07 Marconi Comm Ltd Improvements in or relating to signal transmission
US20030077032A1 (en) * 2001-10-10 2003-04-24 Duling Irl N. Long distance optical transmission system for high dynamic range signals
US6775424B2 (en) * 2001-11-12 2004-08-10 Fujitsu Network Communications, Inc. Modulation and filtration of optical signals
US6999688B1 (en) * 2001-12-20 2006-02-14 Sprint Communications Company L.P. Optical systems with diversity detection
US20040208646A1 (en) * 2002-01-18 2004-10-21 Seemant Choudhary System and method for multi-level phase modulated communication
JP2003244102A (ja) * 2002-02-20 2003-08-29 Hitachi Ltd 光帯域狭窄化送信装置および光残留サイドバンド送信装置
US7277645B2 (en) * 2002-03-14 2007-10-02 Lucent Technologies Inc. High-bit-rate long-haul fiber optic communication system techniques and arrangements
US7277647B2 (en) * 2002-03-14 2007-10-02 Lucent Technologies Inc. System and method of optical transmission
JP2003338805A (ja) * 2002-03-15 2003-11-28 Kddi Submarine Cable Systems Inc 光伝送システム、光送信装置及びこれらの方法
US7142788B2 (en) * 2002-04-16 2006-11-28 Corvis Corporation Optical communications systems, devices, and methods
US7146109B2 (en) * 2002-04-26 2006-12-05 Lucent Technologies Inc. Analog modulation of optical signals
US20040208583A1 (en) * 2002-06-10 2004-10-21 Kameran Azadet Single sideband dense wavelength division multiplexed optical transmission scheme
US20050231783A1 (en) * 2002-06-10 2005-10-20 Carluccio Panzeri Methods for transmitting and receiving laser signals, as well as transmitter and receiver which carry out said methods
US7471903B1 (en) * 2002-06-26 2008-12-30 Nortel Networks Limited Optical communication system
ITMI20021632A1 (it) * 2002-07-24 2004-01-26 S I C E S R L Sistema di telecominicazioni per trasmissioni ottiche in particolare trasmissioni ottiche in aria
US20040057734A1 (en) * 2002-09-25 2004-03-25 Lucent Technologies, Inc. Method and system for reducing transmission penalties associated with ghost pulses
US7269354B1 (en) * 2002-10-23 2007-09-11 Lockheed Martin Corporation Superheterodyne photonic receiver using non-serial frequency translation
DE10251889A1 (de) * 2002-11-07 2004-05-27 Siemens Ag Empfänger für winkelmodulierte optische Signale
FR2855883B1 (fr) * 2003-06-03 2005-08-26 Cit Alcatel Dispositif optoelectronique integre comportant un modulateur a electroabsorption et un element electronique de commande du modulateur
US20050074037A1 (en) * 2003-10-06 2005-04-07 Robin Rickard Optical sub-carrier multiplexed transmission
US7580630B2 (en) * 2004-06-07 2009-08-25 Nortel Networks Limited Spectral shaping for optical OFDM transmission
DE102004028806B3 (de) * 2004-06-15 2005-12-29 Infineon Technologies Ag Empfänger für ein drahtloses Kommunikationssystem
US7577367B2 (en) * 2004-06-15 2009-08-18 Op Vista Incorporated Optical communication using duobinary modulation
US7421204B2 (en) * 2004-09-02 2008-09-02 Lucent Technologies Inc. Method and system for increasing the spectral efficiency of binary coded digital signals
KR100659805B1 (ko) * 2004-09-16 2006-12-19 엘에스전선 주식회사 Ｏｓｓｂ 변조를 이용한 광 송수신 시스템 및 그 신호전송방법
US7095925B2 (en) * 2004-11-03 2006-08-22 Intel Corporation Optical phased array transmitter/receiver
EP1684448A1 (de) * 2005-01-20 2006-07-26 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Erzeugung eines optischen Einseitenband-Signales
US7324761B2 (en) 2005-01-20 2008-01-29 Massachusetts Institute Of Technology Single sideband optical transmitter
US7577369B1 (en) 2005-04-04 2009-08-18 Avanex Corporation Systems for deploying an optical network
US20060222373A1 (en) * 2005-04-04 2006-10-05 Giovanni Barbarossa Methods for upgrading and deploying an optical network
US20060275035A1 (en) * 2005-05-02 2006-12-07 Way Winston I Multiple interconnected broadcast and select optical ring networks with revertible protection switch
CN101310458B (zh) * 2005-10-12 2014-01-22 奥菲迪乌姆有限公司 用于数字信号的光传输的方法和设备
WO2007044939A2 (en) * 2005-10-13 2007-04-19 Opvista Incorporated Optical ring networks using circulating optical probe in protection switching with automatic reversion
JP4549980B2 (ja) * 2006-01-23 2010-09-22 住友大阪セメント株式会社 光変調器
KR100759944B1 (ko) * 2006-03-10 2007-09-18 한국전자통신연구원 밀리미터파 생성장치 및 그 생성방법
GB0610029D0 (en) * 2006-05-19 2006-06-28 Univ Cambridge Tech A method of and apparatus for combining electrical signals
WO2008040053A1 (en) * 2006-10-03 2008-04-10 National Ict Australia Limited Single sideband orthogonal frequency division multiplexed optical fibre transmission
US20080169878A1 (en) * 2007-01-12 2008-07-17 Giuseppe Resnati Low loss combiner for narrowband and wideband rf signals
JP4818142B2 (ja) * 2007-02-06 2011-11-16 富士通株式会社 光受信装置およびその制御方法、並びに、光伝送システム
EP1962438A1 (de) * 2007-02-22 2008-08-27 Sony Deutschland GmbH Datenübertragungsverfahren und Modem
US7773883B1 (en) 2007-05-04 2010-08-10 Vello Systems, Inc. Single-fiber optical ring networks based on optical double sideband modulation
US20090067843A1 (en) * 2007-07-17 2009-03-12 Way Winston I Optical Wavelength-Division-Multiplexed (WDM) Comb Generator Using a Single Laser
WO2009012409A2 (en) 2007-07-17 2009-01-22 Opvista Incorporated Optical ring networks having node-to-node optical communication channels for carrying data traffic
US20090028270A1 (en) * 2007-07-27 2009-01-29 Gemtek Technology Co., Ltd. Mimo broadband channel emulator
EP2186236A1 (de) * 2007-08-30 2010-05-19 Telefonaktiebolaget LM Ericsson (PUBL) Verbesserung bezüglich mehrträgerkommunikation
US7860406B2 (en) * 2007-09-14 2010-12-28 Alcatel-Lucent Usa Inc. PMD insensitive direct-detection optical OFDM systems using self-polarization diversity
US8443024B2 (en) * 2007-10-29 2013-05-14 The Aerospace Corporation Time-domain gated filter for RF communication systems
WO2009056365A1 (en) * 2007-10-29 2009-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Improvements in or relating to optical networks
CN101459913B (zh) * 2007-12-12 2010-10-27 华为技术有限公司 无线通信系统、中心站、接入设备及通信方法
US8135287B2 (en) * 2008-02-21 2012-03-13 Nec Laboratories America, Inc. 100 Gbit/s OFDM optical signal generation
US20100021166A1 (en) * 2008-02-22 2010-01-28 Way Winston I Spectrally Efficient Parallel Optical WDM Channels for Long-Haul MAN and WAN Optical Networks
US20090290877A1 (en) * 2008-05-21 2009-11-26 Nec Laboratories America, Inc. Monitoring for High Speed OFDM Signal Transmission
US20090290878A1 (en) * 2008-05-22 2009-11-26 Nec Laboratories America, Inc. Generating an Optical OFDM Signal with Reduced OSNR Requirement
US7714760B2 (en) * 2008-06-27 2010-05-11 Entropic Communications, Inc. Apparatus and methods for direct quadrature sampling
US8175113B2 (en) * 2008-06-30 2012-05-08 Infinera Corporation Communication network with node bypassed co-routed multi-channel traffic
EP2313997B1 (de) * 2008-07-31 2018-01-17 Xieon Networks S.à r.l. Verfahren zur datenverarbeitung in einem optischen netzwerk, optische netzwerkkomponente und kommunikationssystem
CN101729149A (zh) * 2008-10-22 2010-06-09 华为技术有限公司 一种光解偏振复用光载波的方法、装置和系统
JP5189528B2 (ja) * 2009-03-09 2013-04-24 Ｋｄｄｉ株式会社 光送信装置及び光通信システム
US8374514B2 (en) * 2009-04-15 2013-02-12 Nec Laboratories America, Inc. Parallel digital coherent detection using symmetrical optical interleaver and direct optical down conversion
KR101382619B1 (ko) * 2009-07-24 2014-04-07 한국전자통신연구원 광 송신 장치 및 방법과 광 수신 장치 및 방법
WO2011032571A1 (en) * 2009-09-17 2011-03-24 Universität Duisburg-Essen Transmitter and receiver for transceiving optical signals
US9485050B2 (en) 2009-12-08 2016-11-01 Treq Labs, Inc. Subchannel photonic routing, switching and protection with simplified upgrades of WDM optical networks
TWI406513B (zh) * 2010-01-08 2013-08-21 Ind Tech Res Inst 訊號傳送系統及方法
US8705741B2 (en) * 2010-02-22 2014-04-22 Vello Systems, Inc. Subchannel security at the optical layer
US20140193154A1 (en) * 2010-02-22 2014-07-10 Vello Systems, Inc. Subchannel security at the optical layer
JP5621530B2 (ja) * 2010-11-12 2014-11-12 富士通株式会社 受信機、光スペクトル整形方法、及び光通信システム
US8542999B2 (en) 2011-02-01 2013-09-24 Vello Systems, Inc. Minimizing bandwidth narrowing penalties in a wavelength selective switch optical network
WO2011107055A2 (zh) * 2011-04-20 2011-09-09 华为技术有限公司 基于微波光子技术的信号接收装置和信号接收方法
US9258061B2 (en) 2011-06-29 2016-02-09 Telefonaktiebolaget L M Ericsson (Publ) Individual information in lower and upper optical sidebands
US8848831B2 (en) * 2012-09-20 2014-09-30 Lsi Corporation Direct digital synthesis of quadrature modulated signals
US10014975B2 (en) * 2012-09-28 2018-07-03 Infinera Corporation Channel carrying multiple digital subcarriers
DE102012023448A1 (de) * 2012-11-30 2014-06-05 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Verfahren zum Orten von fehlerhaften Stellen in einem HF-Signalübertragspfad
US9461751B2 (en) * 2012-12-18 2016-10-04 Ciena Corporation Frequency domain multiplex optical transmission
US20140270783A1 (en) * 2013-03-14 2014-09-18 Phase Sensitive Innovations, Inc Radio-frequency signal repetition and amplification using phase-modulation injection-locked lasers
WO2014201519A1 (en) * 2013-06-19 2014-12-24 The University Of Sydney A device and a method for generating an electrical signal with a suppressed frequency band
EP3001628A4 (de) * 2013-07-01 2016-05-18 Huawei Tech Co Ltd Verfahren zur signalmodulation und -demodulation, vorrichtungen zur signalmodulation und -demodulation sowie signalübertragungssystem
KR20150095065A (ko) * 2014-02-12 2015-08-20 한국전자통신연구원 기지국의 신호 처리 장치 및 방법
US9240842B2 (en) * 2014-03-24 2016-01-19 The United States Of America As Represented By The Secretary Of The Air Force Isolation of RF signals using optical single side band modulation combined with optical filtering
US9602217B2 (en) * 2014-04-17 2017-03-21 Nec Corporation Ultra-wide band signal generation using digitally jointed dual sidebands and RF up-conversion for single optical carrier transmission
TW201626746A (zh) * 2015-01-13 2016-07-16 Transystem Inc 光纖通訊裝置及光纖通訊系統
DE102015221283B4 (de) * 2015-10-30 2017-09-14 Deutsches Zentrum für Luft- und Raumfahrt e.V. Sender für ein optisches Freistrahl-Kommunikations-System und zugehöriges Empfängerterminal
US9838137B2 (en) * 2015-12-18 2017-12-05 Fujitsu Limited Device and method for transmitting optical signal in which a plurality of signals are multiplexed
EP3408951B1 (de) * 2016-01-25 2021-06-30 Telefonaktiebolaget LM Ericsson (publ) Verfahren und vorrichtung zum multiplexing von signalen
WO2018045088A1 (en) * 2016-08-30 2018-03-08 Finisar Corporation Bi-directional transceiver with time synchronization
US10256934B2 (en) * 2016-10-11 2019-04-09 Zte Corporation Chirp managed laser generation for next generation passive optical networks
KR102478167B1 (ko) * 2016-11-29 2022-12-16 한국전자통신연구원 주파수 할당 방법 및 그 방법을 수행하는 전송 장치
US10601520B2 (en) 2018-02-07 2020-03-24 Infinera Corporation Clock recovery for digital subcarriers for optical networks
FR3078598B1 (fr) * 2018-03-01 2020-02-07 Thales Dispositif et procede photonique de conversion de frequence a double bande
US11368228B2 (en) 2018-04-13 2022-06-21 Infinera Corporation Apparatuses and methods for digital subcarrier parameter modifications for optical communication networks
US11095389B2 (en) 2018-07-12 2021-08-17 Infiriera Corporation Subcarrier based data center network architecture
US10892827B2 (en) 2018-09-20 2021-01-12 Neophotonics Corporation Apparatus and method for analog electronic fiber dispersion and bandwidth pre-compensation (EDPC) for use in 50 Gbps and greater PAMn optical transceivers
US11258528B2 (en) 2019-09-22 2022-02-22 Infinera Corporation Frequency division multiple access optical subcarriers
US11075694B2 (en) 2019-03-04 2021-07-27 Infinera Corporation Frequency division multiple access optical subcarriers
GB201902951D0 (en) 2019-03-05 2019-04-17 Univ Southampton Method and system for electro-optic modulation
US11336369B2 (en) 2019-03-22 2022-05-17 Infinera Corporation Framework for handling signal integrity using ASE in optical networks
US11418312B2 (en) 2019-04-19 2022-08-16 Infinera Corporation Synchronization for subcarrier communication
US10972184B2 (en) 2019-05-07 2021-04-06 Infinera Corporation Bidirectional optical communications
US11296812B2 (en) 2019-05-14 2022-04-05 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11190291B2 (en) 2019-05-14 2021-11-30 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11489613B2 (en) 2019-05-14 2022-11-01 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11239935B2 (en) 2019-05-14 2022-02-01 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11476966B2 (en) 2019-05-14 2022-10-18 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11177889B2 (en) 2019-05-14 2021-11-16 Infinera Corporation Out-of-band communication channel for sub-carrier-based optical communication systems
US11297005B2 (en) 2019-09-05 2022-04-05 Infiriera Corporation Dynamically switching queueing schemes for network switches
CA3157060A1 (en) 2019-10-10 2021-04-15 Infinera Corporation Optical subcarrier dual-path protection and restoration for optical communications networks
US11743621B2 (en) 2019-10-10 2023-08-29 Infinera Corporation Network switches systems for optical communications networks
US20210111802A1 (en) 2019-10-10 2021-04-15 Infinera Corporation Hub-leaf laser synchronization
US11799552B2 (en) * 2020-08-06 2023-10-24 Electronics And Telecommunications Research Institute Optical network using optical amplifier in gain saturation region

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5301058A (en) 1990-12-31 1994-04-05 Gte Laboratories Incorporated Single sideband optical modulator for lightwave systems
US5239401A (en) * 1990-12-31 1993-08-24 Gte Laboratories Incorporated Optical modulator for cancellation of second-order intermodulation products in lightwave systems
US5333000A (en) 1992-04-03 1994-07-26 The United States Of America As Represented By The United States Department Of Energy Coherent optical monolithic phased-array antenna steering system
IT1265018B1 (it) * 1993-08-10 1996-10-17 Cselt Centro Studi Lab Telecom Dispositivo per l'estrazione e il reinserimento di una portante ottica in reti di comunicazione ottica.
CA2139957C (en) * 1994-02-18 1999-02-09 Andrew R. Chraplyvy Multi-channel optical fiber communication system
DE19514386A1 (de) 1995-04-19 1996-10-24 Hertz Inst Heinrich Optischer Frequenzgenerator
JPH08322106A (ja) * 1995-05-24 1996-12-03 Matsushita Electric Ind Co Ltd モータの制御方法
US5596436A (en) 1995-07-14 1997-01-21 The Regents Of The University Of California Subcarrier multiplexing with dispersion reduction and direct detection
US5608825A (en) * 1996-02-01 1997-03-04 Jds Fitel Inc. Multi-wavelength filtering device using optical fiber Bragg grating
DE19628131C2 (de) 1996-07-12 2003-07-17 Semikron Elektronik Gmbh Gatespannungsbegrenzung für eine Schaltungsanordnung
US5781327A (en) * 1996-08-19 1998-07-14 Trw Inc. Optically efficient high dynamic range electro-optic modulator
CA2188358A1 (en) * 1996-10-21 1998-04-21 Michael J. Sieben optical modulation system
US5745273A (en) 1996-11-27 1998-04-28 Lucent Technologies Inc. Device for single sideband modulation of an optical signal
DE19730830A1 (de) 1997-07-18 1999-01-21 Alsthom Cge Alcatel Laser zur Erzeugung eines Wellenkamms
DE19731494C2 (de) * 1997-07-22 1999-05-27 Siemens Ag Verfahren und Anordnung zur Datenübertragung im Wellenlängenmultiplexverfahren in einem optischen Ringnetz
US5982963A (en) 1997-12-15 1999-11-09 University Of Southern California Tunable nonlinearly chirped grating
US6118566A (en) 1998-11-04 2000-09-12 Corvis Corporation Optical upconverter apparatuses, methods, and systems
US6130766A (en) 1999-01-07 2000-10-10 Qtera Corporation Polarization mode dispersion compensation via an automatic tracking of a principal state of polarization
US6525857B1 (en) * 2000-03-07 2003-02-25 Opvista, Inc. Method and apparatus for interleaved optical single sideband modulation
US6414765B1 (en) * 2000-03-07 2002-07-02 Corning, Inc. Protection switch in a two-fiber optical channel shared protection ring
US6556744B1 (en) * 2001-10-12 2003-04-29 Nortel Networks Limited Reduction of dispersion effects in optical transmission fibre systems
US7116905B2 (en) * 2002-03-27 2006-10-03 Fujitsu Limited Method and system for control signaling in an open ring optical network

Also Published As

Publication number Publication date
ATE349820T1 (de) 2007-01-15
DE60125517T2 (de) 2007-10-04
WO2001067648A3 (en) 2002-03-21
WO2001067647A2 (en) 2001-09-13
WO2001067647A3 (en) 2002-05-02
AU2001241989A1 (en) 2001-09-17
US7003231B2 (en) 2006-02-21
US20020030877A1 (en) 2002-03-14
EP1264424B1 (de) 2006-12-27
WO2001067648A2 (en) 2001-09-13
US6525857B1 (en) 2003-02-25
AU2001241810A1 (en) 2001-09-17
US7206520B2 (en) 2007-04-17
US20060140643A1 (en) 2006-06-29
EP1264424A2 (de) 2002-12-11

Similar Documents

Publication Publication Date Title
DE60125517D1 (de) Verfahren und vorrichtung zur verschachtelten optischen einseitenbandmodulation
DE502006008506D1 (de) Verfahren zur optischen übertragung von polarisations-multiplexsignalen
DE50111554D1 (de) Verfahren und vorrichtung zur filterung eines signals
WO2005089516A3 (en) Flat-topped chirp induced by optical filter edge
WO2001089120A3 (en) Asymmetric wavelength slicing based dense wavelength division multiplexing
DE10192555D2 (de) Vorrichtung zur Übertragung optischer Signale
EP1102114A4 (de) Ramanverstärkungssystem und optische signalübertragung unter verwendung desselben
GB2207827B (en) Fault monitoring system for optical fiber communication systems
ATE370562T1 (de) Einrichtung und verfahren zur demodulation von dpsk signalen
WO2005036215A3 (en) Differential optical technique for chiral analysis
DE59813478D1 (de) Einrichtung zur übertragung von optischen signalen unterschiedlicher frequenzen
DE60121512D1 (de) Sende-Empfänger und Verfahren zur Implementierung
WO2006067786A3 (en) System, device and method of expanding the operational bandwidth of a communication infrastructure
DE60038373D1 (de) Verfahren und vorrichtung zur filterung optischer wellenlängen
WO2007092092A3 (en) Optical discriminators and systems and methods
WO2008045103A3 (en) Method and apparatus for optically filtering a communication signal
ATE322762T1 (de) Vereinfachter digitaler fir filter für direkt- sequenzspreizspektrumübertragungssysteme
JPS6459203A (en) Nxn single mode light waveguide coupler and coupling method
DE60206182D1 (de) Optischer sender zur übertragung einer mehrzahl von ausgangssignalen
WO2003063365A3 (en) Filtering noise in optical signal transmission
DE60321903D1 (de) Vorrichtung zur messung und zur kompensation der farbenzerstreuung
ATE267487T1 (de) Verfahren zur anpassung von zeitverzögerungen und vorrichtung zur synchronisierung von kanälen in einem wdm system
DE60237642D1 (de) Optisches freiausbreitungsübertragungssystem
DE58906842D1 (de) Schnittstellenbaustein zur Ankopplung modulierter Signale.
DE50001744D1 (de) Einrichtung und verfahren zur spektralen formung eines sendesignals in einem funksender

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: VELLO SYSTEMS, INC. (N. D. GES.D.STAATES DELAW, US