BR9911082A - Processo para suprimir canais ópticos de uma linha óptica transportando um sinal óptico de multi-canal, dispositivo e unidade para suprimir canais ópticos em um sistema de transmissão óptico, e, sistema de transmissão óptico - Google Patents

Processo para suprimir canais ópticos de uma linha óptica transportando um sinal óptico de multi-canal, dispositivo e unidade para suprimir canais ópticos em um sistema de transmissão óptico, e, sistema de transmissão óptico

Info

Publication number
BR9911082A
BR9911082A BR9911082-2A BR9911082A BR9911082A BR 9911082 A BR9911082 A BR 9911082A BR 9911082 A BR9911082 A BR 9911082A BR 9911082 A BR9911082 A BR 9911082A
Authority
BR
Brazil
Prior art keywords
optical
signal
channels
transmission system
suppression
Prior art date
Application number
BR9911082-2A
Other languages
English (en)
Inventor
Stefano Aina
Gianpaolo Barozzi
Fausto Meli
Original Assignee
Optical Technologies Usa 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 Optical Technologies Usa Corp filed Critical Optical Technologies Usa Corp
Publication of BR9911082A publication Critical patent/BR9911082A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0224—Irregular wavelength spacing, e.g. to accommodate interference to all wavelengths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • G02B6/29382—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
    • G02B6/29383—Adding and dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0205—Select and combine arrangements, e.g. with an optical combiner at the output after adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0213—Groups of channels or wave bands arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
    • G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
    • G02B6/12021—Comprising cascaded AWG devices; AWG multipass configuration; Plural AWG devices integrated on a single chip
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/29392—Controlling dispersion
    • G02B6/29394—Compensating wavelength dispersion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0206—Express channels arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

"PROCESSO PARA SUPRIMIR CANAIS óPTICOS DE UMA LINHA óPTICA TRANSPORTANDO UM SINAL óPTICO DE MULTI-CANAL, DISPOSITIVO E UNIDADE PARA SUPRIMIR CANAIS óPTICOS EM UM SISTEMA DE TRANSMISSãO óPTICO, E, SISTEMA DE TRANSMISSãO óPTICO" A presente invenção propõe um processo e um dispositivo para adicionar e suprimir canais ópticos em um sistema de transmissão óptico (1) no qual um sinal óptico de multi-canal é transmitido em uma linha de fibra óptica (300). O dispositivo de OADM (Multiplexador de Adição/Supressão óptica) (695; 695') inclui um divisor óptico (673) recebendo um sinal de entrada que inclui pelo menos um subgrupo dos canais completos. Divisor óptico (673) tem uma relação de divisão de potência desequilibrada - na faixa de 60:40 a 90:10 - para alimentar uma fração de potência principal (60% a 90%) de dito sinal de entrada a uma primeira porta de saída e uma fração de potência secundária (40% a 10%) de dito sinal de entrada a uma segunda porta de saída. A fração de potência secundária define um sinal de supressão e é recebido por um desmultiplexador (680; 682) onde canais de supressão são extraídos. A fração de potência principal define um sinal passante que é levado do divisor óptico (673) para um acoplador óptico (674) onde o sinal passante é acoplado com um sinal de adição, vindo de um multiplexador (681). Acoplador óptico (674) tem uma relação de acoplamento desequilibrada - na faixa de 60:40 a 90:10 - de forma que ele gera um sinal de saída prevalentemente constituído pelo sinal passante. Grades de Bragg em cascata (678), posicionadas entre o divisor óptico (673) e o acoplador óptico (674), seletivamente retro-refletem os canais de supressão do sinal passante, e um isolador óptico (679), posicionado antes do divisor óptico (673), suprime os canais de supressão retro-refletidos.
BR9911082-2A 1998-06-09 1999-06-07 Processo para suprimir canais ópticos de uma linha óptica transportando um sinal óptico de multi-canal, dispositivo e unidade para suprimir canais ópticos em um sistema de transmissão óptico, e, sistema de transmissão óptico BR9911082A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98110594A EP0964275A1 (en) 1998-06-09 1998-06-09 Method and device for dropping optical channels in an optical transmission system
PCT/EP1999/003915 WO1999065174A1 (en) 1998-06-09 1999-06-07 Method and device for dropping optical channels in an optical transmission system

Publications (1)

Publication Number Publication Date
BR9911082A true BR9911082A (pt) 2001-02-20

Family

ID=8232094

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9911082-2A BR9911082A (pt) 1998-06-09 1999-06-07 Processo para suprimir canais ópticos de uma linha óptica transportando um sinal óptico de multi-canal, dispositivo e unidade para suprimir canais ópticos em um sistema de transmissão óptico, e, sistema de transmissão óptico

Country Status (6)

Country Link
EP (2) EP0964275A1 (pt)
JP (1) JP2002518696A (pt)
BR (1) BR9911082A (pt)
CA (1) CA2334542A1 (pt)
DE (1) DE69920451T2 (pt)
WO (1) WO1999065174A1 (pt)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6556346B1 (en) 1998-09-22 2003-04-29 Corning O.T.I.Spa Optical amplifying unit and optical transmission system
AU760925B2 (en) * 1999-02-18 2003-05-22 Xieon Networks S.A.R.L. Add-drop-multiplexer and optical wavelength division multiplex transmission system
US6885824B1 (en) 2000-03-03 2005-04-26 Optical Coating Laboratory, Inc. Expandable optical array
US6603598B1 (en) 1999-09-29 2003-08-05 Corning O.T.I. Inc. Optical amplifying unit and optical transmission system
FR2800949B1 (fr) * 1999-11-08 2002-04-12 Cit Alcatel Procede d'extraction de canal pour systeme de transmission optique a multiplex de longueurs d'onde et dispositifs appliquant ce procede
US6292290B1 (en) * 1999-12-20 2001-09-18 Nortel Networks Limited Methods and apparatus for adjusting power in an optical signal, for providing a seamless optical ring and for providing a bidirectional equalized amplifier
US6567578B1 (en) 2000-02-16 2003-05-20 Adc Telecommunications Fiber optic device operating at two or more wavelengths
US6532321B1 (en) 2000-02-16 2003-03-11 Adc Telecommunications, Inc. Fiber optic isolator for use with multiple-wavelength optical signals
EP1126650A3 (en) * 2000-02-18 2007-01-03 Ericsson AB Optical communication system
US6353497B1 (en) 2000-03-03 2002-03-05 Optical Coating Laboratory, Inc. Integrated modular optical amplifier
WO2001064010A2 (en) 2000-03-03 2001-09-07 Optical Technologies Italia S.P.A Optical amplifier and optical transmission system
WO2003007521A1 (en) * 2001-07-13 2003-01-23 Lumentis Ab Wdm ring network for flexible connections
KR100434454B1 (ko) * 2001-09-17 2004-06-05 삼성전자주식회사 데이지 체인 파장 분할 다중화 디바이스와 이를 사용한데이지 체인 파장 분할 다중화 시스템 및 전송 네트워크
US20030156780A1 (en) * 2001-10-24 2003-08-21 Lambda Crossing, Ltd. Tunable filter
JP4495388B2 (ja) * 2002-04-01 2010-07-07 富士通株式会社 波長多重伝送システムにおける信号伝送方法並びに波長多重伝送システムに使用される波長多重送信装置，光分岐／挿入装置及び伝送装置
EP1453234A3 (en) * 2003-02-27 2006-05-17 ECI Telecom Ltd. An optical communication system and method
GB0308655D0 (en) * 2003-04-15 2003-05-21 Marconi Comm Ltd Optical network, and method, for the transmission of data
DE10335419A1 (de) * 2003-08-02 2005-02-17 Marconi Communications Gmbh Wellenlängenselektive optische Signalverarbeitungsvorrichtung
US7831118B2 (en) 2004-03-31 2010-11-09 Fujitsu Limited Coarse wavelength division multiplexing optical transmission system, and coarse wavelength division multiplexing optical transmission method
DE102005051290A1 (de) * 2005-10-26 2007-05-03 Siemens Ag Add-Drop-Einrichtung für Wellenlängen-Multiplex-Signale
JP4669497B2 (ja) * 2007-05-01 2011-04-13 富士通株式会社 波長多重伝送システムにおける信号伝送方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720883B1 (fr) * 1994-06-07 1997-01-10 Cit Alcatel Multiplexeur spectral optique à insertion-extraction.
SE503514C2 (sv) * 1995-02-06 1996-07-01 Ericsson Telefon Ab L M Anordning och förfarande för att koppla en eller flera våglängdskanaler till och från en optisk fiber
IT1277397B1 (it) * 1995-07-31 1997-11-10 Pirelli Cavi S P A Ora Pirelli Sistema e metodo di telecomunicazione a multiplazione di lunghezza d'onda con separazione controllata dei canali in uscita
US5721796A (en) * 1996-06-21 1998-02-24 Lucent Technologies Inc. Optical fiber cross connect with active routing for wavelength multiplexing and demultiplexing
US5706375A (en) * 1996-09-10 1998-01-06 Jds Fitel Inc. Variable-attenuation tunable optical router
EP0833473B1 (de) * 1996-09-30 2004-11-17 Infineon Technologies AG Anordnung zur Durchführung eines Add/Drop-Verfahrens im Wellenlängenmultiplex übertragenen optischen Leistungen

Also Published As

Publication number Publication date
JP2002518696A (ja) 2002-06-25
WO1999065174A1 (en) 1999-12-16
CA2334542A1 (en) 1999-12-16
DE69920451T2 (de) 2005-11-10
EP1088417A1 (en) 2001-04-04
EP0964275A1 (en) 1999-12-15
EP1088417B1 (en) 2004-09-22
DE69920451D1 (de) 2004-10-28

Similar Documents

Publication Publication Date Title
BR9911082A (pt) Processo para suprimir canais ópticos de uma linha óptica transportando um sinal óptico de multi-canal, dispositivo e unidade para suprimir canais ópticos em um sistema de transmissão óptico, e, sistema de transmissão óptico
KR100283952B1 (ko) 광도파로 소자와 광섬유 블럭의 정렬 장치 및 그 결합방법
BR9802289A (pt) Dispositivos de multiplexação óptica em cascata.
KR960027596A (ko) 광 장치 및 그를 이용한 광 통신 시스템
EP3612882B1 (en) Integrated optical circulators enabling polarization diversity
ES2090053T3 (es) Sistema optico de transmision de comunicaciones para transmision diplex o duplex.
KR970009005A (ko) 4개의 웨이브(wave) 혼합으로 인한 광 노이즈 감소 장치
EP0945750A3 (en) Polarizing beam splitter/combiner
US6466344B2 (en) Optical switch, optical amplifier and optical power controller as well as optical add-drop multiplexer
KR20150070045A (ko) 단일섬유결합의 멀티파장광 송수신모듈
GB2373939B (en) Protection in mixed optical WDM systems
SE9701834L (sv) Anordning vid add/drop-nod i ett väglängds- multiplexerat optiskt kommunikationssystem.
ITMI972259A1 (it) Contatore di canale di segnale ottico e dispositivo di amplificazione ottica utilizzante lo stesso
JP2004515153A (ja) 光シャッター
SE9701668D0 (sv) Low loss, optical add/drop WDM node
BR9800624A (pt) Dispositivo de filtragem sintonizável para comunicações óticas.
US20060140627A1 (en) Supervising system, supervising apparatus and supervising method of supervising optical transmission line
DE602004000672D1 (de) Optisches WDM Ringnetzwerk zur durch lokale Zustandsschaltung gesicherten Signalübertragung bei Erfassung einer lokalen Unterbrechung
EP0917312B1 (en) Wavelength division multiplex optical transmission apparatus
JPH0252316A (ja) 監視機能付波長多重伝送モジュール
DE3374349D1 (en) Integrated optics wavelength multiplexer or demultiplexer
JP2635188B2 (ja) 光アクティブモジュール
JP2004354077A (ja) 光ファイバの損失測定方法
Spencer Tutorial on multimode fiber optic wavelength division multiplexing
JPS56103552A (en) Transmitting system of monitor signal

Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]