DE69434078D1 - Optisches Netzwerk mit Endgerätfernabfrage und optische Netzwerkeinheit dafür, dass Wellenlängen transformiert - Google Patents

Optisches Netzwerk mit Endgerätfernabfrage und optische Netzwerkeinheit dafür, dass Wellenlängen transformiert

Info

Publication number
DE69434078D1
DE69434078D1 DE69434078T DE69434078T DE69434078D1 DE 69434078 D1 DE69434078 D1 DE 69434078D1 DE 69434078 T DE69434078 T DE 69434078T DE 69434078 T DE69434078 T DE 69434078T DE 69434078 D1 DE69434078 D1 DE 69434078D1
Authority
DE
Germany
Prior art keywords
optical network
transforming
wavelengths
remote device
device interrogation
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
DE69434078T
Other languages
English (en)
Other versions
DE69434078T2 (de
Inventor
Thomas Edward Darcie
N J Frigo
Peter D Magill
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of DE69434078D1 publication Critical patent/DE69434078D1/de
Application granted granted Critical
Publication of DE69434078T2 publication Critical patent/DE69434078T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H04B10/0771—Fault location on the transmission path
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2587—Arrangements specific to fibre transmission using a single light source for multiple stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0226—Fixed carrier allocation, e.g. according to service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0228—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
    • H04J14/023—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON]
    • H04J14/0232—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON] for downstream transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
    • H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
    • H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0282—WDM tree architectures
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J2014/0253—Allocation of downstream wavelengths for upstream transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)
DE69434078T 1993-03-11 1994-03-09 Optisches Netzwerk mit Endgerätfernabfrage und optische Netzwerkeinheit dafür, dass Wellenlängen transformiert Expired - Lifetime DE69434078T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2972493A 1993-03-11 1993-03-11
US29724 2001-12-20

Publications (2)

Publication Number Publication Date
DE69434078D1 true DE69434078D1 (de) 2004-11-25
DE69434078T2 DE69434078T2 (de) 2005-11-03

Family

ID=21850533

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69434078T Expired - Lifetime DE69434078T2 (de) 1993-03-11 1994-03-09 Optisches Netzwerk mit Endgerätfernabfrage und optische Netzwerkeinheit dafür, dass Wellenlängen transformiert

Country Status (5)

Country Link
US (1) US5559624A (de)
EP (1) EP0615358B1 (de)
JP (1) JPH06350566A (de)
CA (1) CA2118616C (de)
DE (1) DE69434078T2 (de)

Families Citing this family (128)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815295A (en) * 1993-03-11 1998-09-29 Lucent Technologies Inc. Optical communication system with improved maintenance capabilities
CA2185138C (en) * 1994-03-29 2001-01-23 Alan Michael Hill Optical telecommunications network
US5504606A (en) 1994-06-01 1996-04-02 At&T Corp. Low power optical network unit
US5680234A (en) * 1994-10-20 1997-10-21 Lucent Technologies Inc. Passive optical network with bi-directional optical spectral slicing and loop-back
US5521734A (en) * 1994-12-30 1996-05-28 At&T Corp. One-dimensional optical data arrays implemented within optical networks
US5710648A (en) * 1995-12-29 1998-01-20 Lucent Technologies Inc. Optical communication system and remote sensor interrogation
US5864413A (en) * 1996-02-23 1999-01-26 Lucent Technologies, Inc. Passive optical network for dense WDM downstream data transmission and upstream data transmission
US6275468B1 (en) * 1996-07-31 2001-08-14 Motorola, Inc. Automatic timing adjustment for diverse routing of HFC systems
US5708753A (en) * 1996-09-24 1998-01-13 Lucent Technologies Inc. Method of recovering from a fiber-cable cut using random splicing reconnection
DE19701888A1 (de) * 1997-01-21 1998-07-23 Alsthom Cge Alcatel System zur optischen Übertragung von Informationen
US6624916B1 (en) 1997-02-11 2003-09-23 Quantumbeam Limited Signalling system
US5912749A (en) * 1997-02-11 1999-06-15 Lucent Technologies Inc. Call admission control in cellular networks
DE19712750A1 (de) * 1997-03-26 1998-10-01 Alsthom Cge Alcatel Prüfverfahren für ein Netzelement eines optischen Nachrichtenübertragungssystems und Netzelement
FI103619B (fi) 1997-05-26 1999-07-30 Nokia Telecommunications Oy Optinen multipleksointi ja demultipleksointi
US6101011A (en) 1997-05-29 2000-08-08 Ciena Corporation Modulation format adjusting optical transponders
US6222654B1 (en) 1997-08-04 2001-04-24 Lucent Technologies, Inc. Optical node system for a ring architecture and method thereof
US6137611A (en) * 1997-09-27 2000-10-24 Lucent Technologies Inc. Suppression of coherent rayleigh noise in bidirectional communication systems
US6118565A (en) * 1997-09-30 2000-09-12 Lucent Technologies Inc. Coherent optical communication system
US6654958B1 (en) * 1997-12-16 2003-11-25 Koninklijke Philips Electronics N.V. Reference signal generator for return path aligning
JP3481442B2 (ja) 1997-12-22 2003-12-22 日本電気株式会社 光ネットワーク
US6577422B1 (en) 1998-02-18 2003-06-10 At&T Corp. Long reach delivery of broadcast services using broadband optical sources and pre-compensation dispersion
US6014237A (en) * 1998-06-01 2000-01-11 Sarnoff Corporation Multiwavelength mode-locked dense wavelength division multiplexed optical communication systems
US6388782B1 (en) 1998-06-01 2002-05-14 Sarnoff Corporation Multi-wavelength dense wavelength division multiplexed optical switching systems
US6373611B1 (en) * 1998-06-22 2002-04-16 Scientific-Atlanta, Inc. Digital optical transmitter
KR100330409B1 (ko) * 1998-07-23 2002-08-27 한국과학기술원 파장분할다중 방식 다중화/역다중화 장치와 이를 이용한 파장분할다중 방식 수동형 광 가입자망
WO2000011857A1 (en) * 1998-08-18 2000-03-02 Sbc Technology Resources, Inc. Method and apparatus for spectral containment over telephone service lines
US6192058B1 (en) 1998-09-18 2001-02-20 Sarnoff Corporation Multiwavelength actively mode-locked external cavity semiconductor laser
US6826368B1 (en) 1998-10-20 2004-11-30 Lucent Technologies Inc. Wavelength division multiplexing (WDM) with multi-frequency lasers and optical couplers
JP3696090B2 (ja) * 1998-11-17 2005-09-14 テンプレックス テクノロジイ インコーポレイテッド コードベース光ネットワーク、方法及び装置
US7065298B1 (en) 1998-11-17 2006-06-20 Intel Corporation Code-based optical networks, methods, and apparatus
US6614781B1 (en) 1998-11-20 2003-09-02 Level 3 Communications, Inc. Voice over data telecommunications network architecture
US6523177B1 (en) * 1999-04-01 2003-02-18 Scientific-Atlanta, Inc. Cable television system with digital reverse path architecture
US6592272B1 (en) * 1999-10-22 2003-07-15 Quantum Bridge Communications, Inc. Burst mode transmission over multiple optical wavelengths
JP2002026874A (ja) * 2000-07-07 2002-01-25 Matsushita Electric Ind Co Ltd 光通信装置
US7065302B1 (en) * 2000-09-15 2006-06-20 Lockheed Martin Corporation High efficiency optical feedback modulator and method of operation
US6603592B1 (en) 2000-09-26 2003-08-05 Lucent Technologies Inc. Optical wavelength converter
US7301968B2 (en) * 2001-03-02 2007-11-27 Pmc-Sierra Israel Ltd. Communication protocol for passive optical network topologies
US6751372B2 (en) * 2001-03-19 2004-06-15 At&T Corp Four-port wavelength-selective crossbar switches (4WCS) using reciprocal WDM MUX-DEMUX and optical circulator combination
US7027733B2 (en) * 2001-03-19 2006-04-11 At&T Corp. Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switch
US6961521B1 (en) * 2001-03-27 2005-11-01 Turin Networks Method and apparatus for transmitting a bit interleaved optical data stream on an optical network
US7292528B2 (en) * 2001-06-04 2007-11-06 Turin Networks Method and apparatus to facilitate independent protection switching in a distributed network
US7433598B2 (en) * 2001-06-29 2008-10-07 Broadband Royalty Corp. Uncooled laser generation of narrowcast CATV signal
US20030007211A1 (en) * 2001-07-05 2003-01-09 Broadcom Corporation System for communications in ethernet-based fiber optic TDMA networks
US7228072B2 (en) * 2001-10-16 2007-06-05 Telefonaktiebolaget Lm Ericsson (Publ) System and method for integrating a fiber optic fixed access network and a fiber optic radio access network
FI20012570A0 (fi) * 2001-12-21 2001-12-21 Nokia Corp Optinen siirtoverkko
KR100651364B1 (ko) * 2002-03-11 2006-11-28 삼성전자주식회사 기가 비트 이더넷 수동 광 가입자망에서의 전송대역폭할당 방법
KR100480540B1 (ko) * 2002-04-30 2005-04-06 주식회사 코어세스 광가입자단의 파장제어가 가능한 파장분할다중방식 수동형광가입자망 시스템
JP3782407B2 (ja) * 2002-08-06 2006-06-07 ズン−クック，チェ 波長分割多重方式手動型光加入者網システム（ｗａｖｅｌｅｎｇｔｈｄｉｖｉｓｉｏｎｍｕｌｔｉｐｌｅｘｉｎｇ−ｐａｓｓｉｖｅｏｐｔｉｃａｌｎｅｔｗｏｒｋ）
KR100489922B1 (ko) * 2002-10-01 2005-05-17 최준국 페브리-페롯 레이저 다이오드의 셀프 인젝션 락킹을이용한 고밀도 파장분할 다중방식 수동형 광가입자망 시스템
DE10246612A1 (de) * 2002-10-07 2004-04-15 Marconi Communications Gmbh Optisches Nachrichten verarbeitendes System, Komponenten und Betriebsverfahren dafür
GB0224055D0 (en) * 2002-10-16 2002-11-27 Bookham Technology Plc Optical modulation devices
KR100480246B1 (ko) * 2002-11-07 2005-04-07 삼성전자주식회사 중앙 기지국에서 생성된 다파장 광의 루프백을 이용하는수동형 광통신망
GB0311563D0 (en) * 2003-05-20 2003-06-25 Nokia Corp Optical data transmission system
WO2004114555A1 (ja) 2003-06-18 2004-12-29 Nippon Telegraph And Telephone Corporation 光波長多重アクセスシステムおよび光ネットワークユニット
KR100547797B1 (ko) * 2003-07-28 2006-01-31 삼성전자주식회사 다파장 레이징 광원 및 반사형 광 증폭수단을 이용한파장분할다중방식 수동형 광가입자망
US7477845B2 (en) * 2003-08-18 2009-01-13 Teknovus, Inc. Method and apparatus for reducing data burst overhead in an ethernet passive optical network
KR100575983B1 (ko) * 2003-08-23 2006-05-02 삼성전자주식회사 다파장 광송신기와 이를 이용한 양방향 파장 분할 다중시스템
ES2245581B1 (es) * 2004-01-09 2007-03-16 Telefonica, S.A. Sistema de medida de redes pasivas de sensores de fibra optica.
US20050175344A1 (en) * 2004-02-06 2005-08-11 Utstarcom, Inc. System and apparatus for a carrier class WDM PON accommodating multiple services or protocols
US7848644B2 (en) 2004-02-23 2010-12-07 Dynamic Method Enterprises Limited Method and an apparatus to provide optical equipment protection
US7720382B2 (en) * 2004-04-16 2010-05-18 Alcatel-Lucent Usa Inc. Time-domain wavelength interleaved network with communications via hub node
JP4247834B2 (ja) * 2004-05-19 2009-04-02 三菱電機株式会社 観測装置及び観測システム
JP4543210B2 (ja) * 2004-05-20 2010-09-15 三菱電機株式会社 海底観測装置および海底観測システム
JP4553236B2 (ja) * 2004-06-07 2010-09-29 日本電信電話株式会社 光通信方法および光伝送装置
JP4553238B2 (ja) * 2004-06-09 2010-09-29 日本電信電話株式会社 光通信方法、光伝送装置、プログラム、および記録媒体。
EP1612974B1 (de) * 2004-06-28 2012-04-18 Alcatel Lucent Protokoll- und Leitungsgeschwindingkeits-transparentes WDM passives optisches Netzwerk
GB2418088A (en) * 2004-09-10 2006-03-15 Marconi Comm Ltd Upgrading optical telecommunications networks
KR100675834B1 (ko) * 2004-10-28 2007-01-29 한국전자통신연구원 루프백 형 파장분할다중방식의 수동형 광 네트워크
KR100641414B1 (ko) * 2004-11-01 2006-11-02 한국전자통신연구원 루프백 형 파장분할다중방식의 수동형 광 네트워크의 장애관리 장치 및 방법
KR100584418B1 (ko) * 2004-12-01 2006-05-26 삼성전자주식회사 파장 분할 다중 방식 수동형 광 가입자 망
US20060140641A1 (en) * 2004-12-29 2006-06-29 Brolin Stephen J Avoiding ONU laser by optical modulation and remodulation
US20060140642A1 (en) * 2004-12-29 2006-06-29 Brolin Stephen J Eliminating ONU laser for WDM PON by burst mode
US7630638B2 (en) * 2004-12-29 2009-12-08 Fujitsu Limited Shared multi-lambda source for WDM PON
WO2006129894A1 (en) * 2005-06-03 2006-12-07 Kt Corporation Wavelength division multiplexing-passive optical network system
JP3936721B2 (ja) 2005-07-29 2007-06-27 株式会社日立コミュニケーションテクノロジー 光アクセスシステム、光加入者装置及び光集線装置
EP1763165B1 (de) * 2005-09-13 2008-01-09 Alcatel Lucent Verfahren zum Betrieb eines passiven optischen Netzwerks, optischer Leitungsabschluss und Übertragungsrahmen
US7831146B2 (en) * 2005-09-15 2010-11-09 Mazed Mohammad A Time and wavelength-shifted dynamic bidirectional system
CN101305554A (zh) * 2005-10-12 2008-11-12 汤姆逊许可公司 频率选择电缆反射器
BRPI0617307A2 (pt) * 2005-10-12 2011-07-19 Thomson Licensing derivações comutáveis de banda e amplificador para uso em um sistema a cabo
FR2893469B1 (fr) * 2005-11-17 2007-12-14 Alcatel Sa Dispositifs perfectionnes de transmission de donnees pour des equipements de communication d'un reseau optique passif
US7738167B2 (en) * 2005-12-09 2010-06-15 Electronics And Telecommunications Research Institute Reflective semiconductor optical amplifier (RSOA), RSOA module having the same, and passive optical network using the same
US8208811B2 (en) * 2005-12-12 2012-06-26 Verizon Business Global Llc Network with sourceless clients
KR20070108422A (ko) * 2006-01-09 2007-11-12 한국전자통신연구원 동적 전류 주입에 의한 하향 광신호를 재활용하는 반도체광 증폭기 및 그 구동장치
US8014672B2 (en) * 2006-01-27 2011-09-06 Nippon Telegraph And Telephone Corporation Optical wavelength multiplexing access system
DE102006004597A1 (de) * 2006-02-01 2007-07-05 Siemens Ag Anordnung und Verfahren zur Bereitstellung konstanten Lichts sowie Netzabschluss mit der Anordnung
WO2007140033A2 (en) * 2006-03-07 2007-12-06 The Regents Of The University Of California Optical injection locking of vcsels for wavelength division multiplexed passive optical networks (wdm-pons)
KR100842248B1 (ko) * 2006-03-21 2008-06-30 한국전자통신연구원 맨체스터 코드화 신호의 재변조 방식을 갖는 광 통신시스템 및 방법
KR100819034B1 (ko) * 2006-05-11 2008-04-03 한국전자통신연구원 반사형 반도체 광증폭기 기반 수동형 광가입자망
EP2025098A1 (de) * 2006-05-31 2009-02-18 Thomson Licensing Ortsdigitalvideo-verteilungssystem für kabel
GB0611483D0 (en) * 2006-06-10 2006-07-19 Ct For Integrated Photonics Th Optical fibre network for RF and microwave signal distribution
US8280253B2 (en) 2006-06-30 2012-10-02 France Telecom Optical telecommunications network terminal, an installation including the terminal, and a method of detecting a break in optical transmission means
US20080131125A1 (en) * 2006-12-01 2008-06-05 Kim Byoung Whi Loopback-type wavelength division multiplexing passive optical network system
KR100842290B1 (ko) * 2006-12-08 2008-06-30 한국전자통신연구원 Ｗｄｍ 기반의 ｔｄｍ-ｐｏｎ 시스템에서의 파장 변환장치와 이를 이용한 광전송 장치 및 방법
KR100975882B1 (ko) * 2007-08-17 2010-08-13 한국전자통신연구원 시간분할 다중화 수동형 광전송 방식에 파장분할 다중화기술을 적용한 광가입자망 시스템 및 서비스 제공 방법
WO2009026962A1 (en) * 2007-08-30 2009-03-05 Telefonaktiebolaget Lm Ericsson (Publ) Improvements in or relating to multicarrier communication
CN101399618B (zh) * 2007-09-26 2011-06-15 华为技术有限公司 光线路终端、无源光网络和射频信号传输方法
JP4410818B2 (ja) * 2007-10-11 2010-02-03 株式会社日立コミュニケーションテクノロジー 受動光網システムおよび局側光伝送路終端装置
GB0722204D0 (en) * 2007-11-13 2007-12-19 Ct For Integrated Photonics Th Real-time data transfer system using a wavelength division multiplexed passive optical network
WO2009124588A1 (en) * 2008-04-09 2009-10-15 Telefonaktiebolaget Lm Ericsson (Publ) Improvements in or relating to optical networks
US20090263122A1 (en) * 2008-04-22 2009-10-22 Roger Jonathan Helkey Method and apparatus for network diagnostics in a passive optical network
WO2010000296A1 (en) 2008-06-30 2010-01-07 Telefonaktiebolaget Lm Ericsson (Publ) Optical apparatus
CN102187604B (zh) * 2008-08-19 2015-05-27 爱立信电话股份有限公司 光网络中的调制的改进或者与光网络中的调制相关的改进
WO2010035333A1 (ja) * 2008-09-26 2010-04-01 富士通オプティカルコンポーネンツ株式会社 位相変調信号受信装置
US20140376912A1 (en) * 2011-07-08 2014-12-25 Telefonaktiebolaget L M Ericsson (Publ) Optical access network
JP6127434B2 (ja) * 2012-10-05 2017-05-17 富士通株式会社 Ｐｏｎシステム及びサブキャリア割当方法
DE102013109308A1 (de) 2013-03-19 2014-09-25 Karlsruher Institut für Technologie Strukturierte Beschichtung aus Siliciumoxicarbid, Verfahren zu ihrer Herstellung und ihre Verwendung
US9344195B2 (en) * 2013-04-30 2016-05-17 Broadcom Corporation Multiple level signaling for passive optical networks
US9806817B2 (en) * 2013-05-31 2017-10-31 Telekom Malaysia Berhad Wavelength division multiplexing passive optical network system
US9124368B2 (en) * 2013-06-04 2015-09-01 Telefonaktiebolaget L M Ericsson (Publ) Transceiver for use in fibre network
KR101502146B1 (ko) * 2013-09-24 2015-03-13 주식회사 케이티 엑세스 네트워크에서의 홈 네트워크 신호 중계 장치 및 이를 이용한 엑세스 네트워크에서의 홈 네트워크 신호 중계 방법
US20150132008A1 (en) * 2013-11-11 2015-05-14 Taiwan Semiconductor Manufacturing Company, Ltd. Via-less multi-layer integrated circuit with inter-layer interconnection
US10928659B2 (en) 2014-02-24 2021-02-23 Rockley Photonics Limited Optoelectronic device
US10231038B2 (en) 2014-02-24 2019-03-12 Rockley Photonics Limited Detector remodulator and optoelectronic switch
CA2946535C (en) * 2014-04-21 2020-02-25 Arris Enterprises Llc Apparatus and system for managing wavelengths in optical networks
JP2016039570A (ja) * 2014-08-08 2016-03-22 キヤノン株式会社 通信装置およびその制御方法、通信システム
JP6418958B2 (ja) * 2015-01-19 2018-11-07 三菱電機株式会社 子局装置、通信システム、及び故障特定方法
US10921616B2 (en) 2016-11-23 2021-02-16 Rockley Photonics Limited Optoelectronic device
US11150494B2 (en) 2015-03-05 2021-10-19 Rockley Photonics Limited Waveguide modulator structures
WO2016198728A1 (en) 2015-06-11 2016-12-15 Nokia Technologies Oy Fibre-optic communication based on encoded frequency-shifted light
US10003133B2 (en) * 2016-01-22 2018-06-19 Telekom Malaysia Berhad Reusable carrier based polarization diversity for uplink of full-duplex radio-over-fiber system
US10630413B2 (en) * 2016-05-25 2020-04-21 Huawei Technologies Co., Ltd. Optical communications system with centralized wavelength source
US11101256B2 (en) 2016-11-23 2021-08-24 Rockley Photonics Limited Optical modulators
EP3548963B1 (de) 2016-12-02 2022-08-03 Rockley Photonics Limited Wellenleitervorrichtung und verfahren zur dotierung einer wellenleitervorrichtung
US11105975B2 (en) 2016-12-02 2021-08-31 Rockley Photonics Limited Waveguide optoelectronic device
US10862582B1 (en) * 2018-08-01 2020-12-08 Exfo Inc. OTDR receive device with connectivity feedback
US11218222B1 (en) * 2020-07-31 2022-01-04 At&T Intellectual Property I, L.P. Method and an apparatus for transitioning between optical networks
CN114858410A (zh) * 2021-01-20 2022-08-05 珠海保税区光联通讯技术有限公司 识别和监测光学系统中的连接
CN113872699B (zh) * 2021-11-08 2023-04-07 中国电信股份有限公司 光发射装置、方法及光模块

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584220A (en) * 1966-04-09 1971-06-08 Hitachi Ltd Optical communication system
US3752908A (en) * 1972-06-28 1973-08-14 Kms Ind Inc Catv audio interaction system
US3890461A (en) * 1973-03-27 1975-06-17 Theatrevision Inc Ticket operated subscription television receiver
DE3067247D1 (en) * 1979-05-23 1984-05-03 Michael Millett Distance measuring system employing secondary radar
ZA82860B (en) * 1981-02-18 1982-12-29 Int Computers Ltd Data transmitting systems
JPS60121833A (ja) * 1983-12-06 1985-06-29 Nec Corp 双方向光伝送方式
US4946244A (en) * 1984-08-24 1990-08-07 Pacific Bell Fiber optic distribution system and method of using same
US5107490A (en) * 1985-04-24 1992-04-21 Artel Communications Corporation Ring-type communication network
US4642804A (en) * 1985-05-10 1987-02-10 Bell Communications Research, Inc. Shared laser lightwave transmission systems
US4922481A (en) * 1985-08-01 1990-05-01 Hicks John W Optical communication systems enabling minimal subscriber components
JPS6253033A (ja) * 1985-09-02 1987-03-07 Nippon Telegr & Teleph Corp <Ntt> 光フアイバ双方向伝送方式
JPS6253032A (ja) * 1985-09-02 1987-03-07 Nippon Telegr & Teleph Corp <Ntt> 光フアイバ双方向伝送方式
US4712859A (en) * 1985-09-19 1987-12-15 Bell Communications Research, Inc. Distributed star network
GB8525413D0 (en) * 1985-10-15 1985-11-20 Plessey Co Plc Optical communications system
US4730301A (en) * 1985-12-20 1988-03-08 Polaroid Corporation Wavelength multiplexed optical communications system and method
US4879763A (en) * 1986-02-21 1989-11-07 AT&T Bell Laboratories American Telephone and Telegraph Company Optical fiber bidirectional transmission system
GB8713794D0 (en) * 1987-06-12 1987-07-15 British Telecomm Optical multiplexing
US4787693A (en) * 1987-11-02 1988-11-29 American Telephone And Telegraph Company, At&T Bell Laboratories Passive star coupler
US5109286A (en) * 1988-03-10 1992-04-28 Scientific-Atlanta, Inc. CATV reverse path manifold system
US5058101A (en) * 1988-12-15 1991-10-15 Bell Communications Research, Inc. Coherent detection loop distribution system
US5221983A (en) * 1989-01-19 1993-06-22 Bell Communications Research, Inc. Passive photonic loop architecture employing wavelength multiplexing
US5212577A (en) * 1990-01-19 1993-05-18 Canon Kabushiki Kaisha Optical communication equipment and optical communication method
US5225902A (en) * 1990-03-20 1993-07-06 Scientific-Atlanta, Inc. Automatic frequency selection in a bi-directional cable television system
GB2245116A (en) * 1990-06-13 1991-12-18 Gen Electric Co Plc Telecommunications reflective optical links
EP0474914B1 (de) * 1990-09-14 1995-04-12 Siemens Aktiengesellschaft Bidirektionales Telekommunikationssystem
US5343240A (en) * 1991-11-04 1994-08-30 At&T Bell Laboratories Bidirectional video telephony using shared channels on coaxial cable networks
US5285305A (en) * 1991-12-12 1994-02-08 At & T Bell Laboratories Optical communication network with passive monitoring

Also Published As

Publication number Publication date
US5559624A (en) 1996-09-24
JPH06350566A (ja) 1994-12-22
CA2118616A1 (en) 1994-09-12
EP0615358B1 (de) 2004-10-20
EP0615358A1 (de) 1994-09-14
CA2118616C (en) 1999-09-14
DE69434078T2 (de) 2005-11-03

Similar Documents

Publication Publication Date Title
DE69434078D1 (de) Optisches Netzwerk mit Endgerätfernabfrage und optische Netzwerkeinheit dafür, dass Wellenlängen transformiert
DE69618046T2 (de) Optisches System, Bildbeobachtungsvorrichtung und Bildaufnahmevorrichtung mit Verwendung derselben
DE69634441D1 (de) Optische zwischenstelle mit sicherheitsabschaltung
FR2709694B1 (fr) Appareil de blocage de lentilles.
DE69428861T2 (de) Optische vorrichtung
DE69519076T2 (de) Optische Vorrichtung mit Resonator
DE69714378D1 (de) Vorrichtung mit Lichtwellenleiter-Abzweiger
DE69831041D1 (de) Diffraktives optisches Element und optisches System unter Verwendung desselben
BR9303492A (pt) Aparelho de exibicao transrefletido nao-emissivo
DE69429466D1 (de) Optische Vorrichtung
DE69834462D1 (de) Optische Übertragungseinrichtung und optisches Übertragungssystem
DE69715359D1 (de) Polarisationsumwandlungselement, polarisationsbeleuchtungsvorrichtung, anzeige mit einer solchen vorrichtung und projektionsanzeige
DE69419370T2 (de) Optische Vorrichtung
NL1003198A1 (nl) Polarisatie-onafhankelijke optische inrichting.
DE69109852D1 (de) Ausrichtungskontrollvorrichtung und ihre verwendung.
DE69222617T2 (de) Nicht-lineare optische Vorrichtung
DE69308067T2 (de) Elektrophotographisches lichtempfindliches Element, elektrophotographisches Gerät und Vorrichtungseinheit unter Verwendung desselben
DE69424471T2 (de) Optische Modulationsvorrichtung
DE69735839D1 (de) Optische Übertragungseinrichtung und optisches Übertragungssystem
DE69603744T2 (de) Flache optische vorrichtung mit mehreren montagekonfigurationen
DE69331426T2 (de) Optischer Empfänger, optische Halbleitervorrichtung und dieselbigen verwendendes optisches Kommunikationssystem
DE69409844D1 (de) Lichtventilvorrichtung und Anzeigesystem, die diese benutzt
DE69522174T2 (de) Optische Steuervorrichtung
DE19781041T1 (de) Optische Vorrichtung
DE69425050T2 (de) Optische vorrichtung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition