ITMI961638A0 - - Google Patents

Info

Publication number
ITMI961638A0
ITMI961638A0 ITMI961638A ITMI961638A ITMI961638A0 IT MI961638 A0 ITMI961638 A0 IT MI961638A0 IT MI961638 A ITMI961638 A IT MI961638A IT MI961638 A ITMI961638 A IT MI961638A IT MI961638 A0 ITMI961638 A0 IT MI961638A0
Authority
IT
Italy
Application number
ITMI961638A
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 filed Critical
Publication of ITMI961638A0 publication Critical patent/ITMI961638A0/it
Priority to IT96MI001638A priority Critical patent/IT1283372B1/it
Priority to NZ333360A priority patent/NZ333360A/en
Priority to AU39414/97A priority patent/AU731543B2/en
Priority to EP97936666A priority patent/EP1008239B1/en
Priority to CA002261918A priority patent/CA2261918A1/en
Priority to BR9710612A priority patent/BR9710612A/pt
Priority to PCT/EP1997/004091 priority patent/WO1998005133A1/en
Priority to US09/202,270 priority patent/US6288810B1/en
Priority to ARP970103467A priority patent/AR008129A1/es
Publication of ITMI961638A1 publication Critical patent/ITMI961638A1/it
Application granted granted Critical
Publication of IT1283372B1 publication Critical patent/IT1283372B1/it
Priority to US09/900,185 priority patent/US6437888B1/en
Priority to US10/224,199 priority patent/US20020196495A1/en

Links

Classifications

    • 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
    • H04J14/0206—Express channels arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
    • 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
    • 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
    • H04J14/0215—Architecture aspects
    • H04J14/0216—Bidirectional architectures
    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
IT96MI001638A 1996-07-31 1996-07-31 Dispositivo per l'inserimento e l'estrazione di segnali ottici IT1283372B1 (it)

Priority Applications (11)

Application Number Priority Date Filing Date Title
IT96MI001638A IT1283372B1 (it) 1996-07-31 1996-07-31 Dispositivo per l'inserimento e l'estrazione di segnali ottici
PCT/EP1997/004091 WO1998005133A1 (en) 1996-07-31 1997-07-28 Device for adding and dropping optical signals
AU39414/97A AU731543B2 (en) 1996-07-31 1997-07-28 Device for adding and dropping optical signals
EP97936666A EP1008239B1 (en) 1996-07-31 1997-07-28 Device for adding and dropping optical signals
CA002261918A CA2261918A1 (en) 1996-07-31 1997-07-28 Device for adding and dropping optical signals
BR9710612A BR9710612A (pt) 1996-07-31 1997-07-28 Dispositivo para adi-Æo e retirada de sinais Äticos para e desde uma via de pecurso de transmissÆo Ätica sistema de telecomunica-Æo Ätica de mÚltiplos canais para transmissÆo de sinais Äticos e processo para adi-ao/retirada de s¡nais Äticos
NZ333360A NZ333360A (en) 1996-07-31 1997-07-28 Adding/dropping wdm optical signals from optical fibre, using spectral selectors that divide signal into two series with mutually staggered wavelengths
US09/202,270 US6288810B1 (en) 1996-07-31 1997-07-28 Device for adding and dropping optical signals
ARP970103467A AR008129A1 (es) 1996-07-31 1997-07-31 Dispositivo y metodo para agregar y eliminar senales opticas a y de una via de transmision optica y una disposion de telecomunicaciones opticas multicanalpara transmitir senales opticas que comprende dicho dispositivo
US09/900,185 US6437888B1 (en) 1996-07-31 2001-07-09 Device for adding and dropping optical signals
US10/224,199 US20020196495A1 (en) 1996-07-31 2002-08-20 Device for adding and dropping optical signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96MI001638A IT1283372B1 (it) 1996-07-31 1996-07-31 Dispositivo per l'inserimento e l'estrazione di segnali ottici

Publications (3)

Publication Number Publication Date
ITMI961638A0 true ITMI961638A0 (it) 1996-07-31
ITMI961638A1 ITMI961638A1 (it) 1998-01-31
IT1283372B1 IT1283372B1 (it) 1998-04-17

Family

ID=11374719

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96MI001638A IT1283372B1 (it) 1996-07-31 1996-07-31 Dispositivo per l'inserimento e l'estrazione di segnali ottici

Country Status (9)

Country Link
US (3) US6288810B1 (it)
EP (1) EP1008239B1 (it)
AR (1) AR008129A1 (it)
AU (1) AU731543B2 (it)
BR (1) BR9710612A (it)
CA (1) CA2261918A1 (it)
IT (1) IT1283372B1 (it)
NZ (1) NZ333360A (it)
WO (1) WO1998005133A1 (it)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1283373B1 (it) * 1996-07-31 1998-04-17 Pirelli Cavi S P A Ora Pirelli Sistema di telecomunicazione ottica multicanale bidirezionale
IT1283372B1 (it) * 1996-07-31 1998-04-17 Pirelli Cavi S P A Ora Pirelli Dispositivo per l'inserimento e l'estrazione di segnali ottici
JP3639109B2 (ja) * 1998-04-02 2005-04-20 富士通株式会社 光伝送装置、光伝送システム及び光端局
JP2000004213A (ja) * 1998-06-12 2000-01-07 Nec Corp 波長分割多重信号光におけるｏａｄｍ
KR100400362B1 (ko) * 1998-08-04 2003-11-14 삼성전자주식회사 광결합및분리장치,그리고 이를구비한파장분할다중화광링크
FR2782588B1 (fr) 1998-08-24 2002-12-20 Alsthom Cge Alkatel Dispositif d'insertion/extraction de signaux optiques multiplexes en longueur d'onde
CA2357017A1 (en) * 1998-12-24 2000-07-06 Optical Technologies Italia S.P.A. Acousto-optical device
FR2790160B1 (fr) * 1999-02-19 2001-05-04 Cit Alcatel Systeme de transmission regenere wdm
US6597481B1 (en) * 1999-02-19 2003-07-22 Lucent Technologies Inc. Controllable wavelength-selective optical cross-connect
GB2348557B (en) 1999-04-01 2002-03-13 Marconi Comm Ltd Communications system
JP4044253B2 (ja) * 1999-04-05 2008-02-06 株式会社東芝 光分岐挿入ノード装置
FR2795247B1 (fr) * 1999-06-21 2001-09-14 Cit Alcatel Amplificateur raman a bandes multiples
GB9915233D0 (en) * 1999-06-30 1999-09-01 Marconi Comm Ltd Optical system
US6417962B1 (en) * 1999-07-07 2002-07-09 Corning Incorporated Optical waveguide amplifier optical service channel accessor device and method of making
US6614568B1 (en) * 1999-07-14 2003-09-02 At&T Corp. Wavelength-cyclic communication network and wavelength-cyclic modules
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
JP2001223641A (ja) * 2000-02-14 2001-08-17 Sumitomo Electric Ind Ltd 光伝送システム及び光伝送方法
KR100351672B1 (ko) * 2000-06-12 2002-09-11 한국과학기술원 전광자동이득조절 기능을 갖는 양방향 애드/드롭 광증폭기
US6898351B2 (en) * 2000-11-07 2005-05-24 Photon-X, Llc Optical fiber transmission systems with suppressed light scattering
WO2002058285A2 (en) * 2001-01-22 2002-07-25 Essex Corporation Optical cdma communications system using otdl device
US7062174B2 (en) * 2001-01-22 2006-06-13 Essex Corporation Wavelength division multiplexing add-drop multiplexer using an optical tapped delay line
KR100387072B1 (ko) * 2001-02-23 2003-06-12 삼성전자주식회사 양방향 광증폭 모듈
US20040247239A1 (en) * 2001-03-12 2004-12-09 Louay Eldada Hitless errorless trimmable dynamic optical add/drop multiplexer devices
US7620323B2 (en) * 2001-03-16 2009-11-17 Meriton Networks Us Inc. Method and apparatus for interconnecting a plurality of optical transducers with a wavelength division multiplexed optical switch
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
EP1378084A1 (en) * 2001-04-11 2004-01-07 Lumentis AB Low loss wdm add drop node
IL143368A (en) * 2001-05-24 2006-07-05 Shlomo Orbach Multiply up and down optical signals
GB0200177D0 (en) * 2002-01-04 2002-02-20 Marconi Comm Ltd Noise reduction in optical communications networks
US7577366B2 (en) * 2002-01-07 2009-08-18 Fujitsu Limited Selectable dispersion enhancement
US6636661B1 (en) * 2002-02-26 2003-10-21 Wavesplitter Technologies, Inc. Optical signal interleaving comb filter with reduced chromatic dispersion and applications therefor
US6738133B1 (en) * 2002-04-04 2004-05-18 Yy Labs, Inc. Method and device for measuring single-shot transient signals
SE0202160D0 (sv) * 2002-07-10 2002-07-10 Proximion Fiber Optics Ab Wavelength selective switch
US7142745B1 (en) * 2002-09-24 2006-11-28 Cisco Technology, Inc. WDM ring interconnection
IL152193A (en) * 2002-10-09 2008-03-20 Eci Telecom Ltd Two stage optical amplifier
US6826326B1 (en) * 2002-11-01 2004-11-30 Alliance Fiber Optic Products, Inc. Quasi-hitless tunable add-drop filters
KR100474695B1 (ko) * 2003-05-12 2005-03-10 삼성전자주식회사 파장분할다중 광통신망을 위한 양방향 광 분기/결합다중화기
KR20040099921A (ko) * 2003-05-20 2004-12-02 삼성전자주식회사 재구성 가능한 애드/드롭 모듈
KR100566244B1 (ko) * 2003-08-09 2006-03-29 삼성전자주식회사 양방향 광 애드-드롭 다중화기
US20070297800A1 (en) * 2004-04-08 2007-12-27 Jun-Kook Choi Wavelength Division Multiplexing Passive Optical Network System
CN100412588C (zh) * 2004-08-16 2008-08-20 富士通株式会社 光学插分复用器
GB2433662B (en) * 2004-09-29 2009-04-08 Fujitsu Ltd Optical add/drop multiplexer and optical network system
US7508577B2 (en) * 2005-03-29 2009-03-24 Alcatel-Lucent Usa Inc. Method and system for suppressing ASE noise
US20070003283A1 (en) * 2005-06-29 2007-01-04 At&T Corp. Dynamic allocation of bandwidth in a bidirectional optical transmission system
US8131150B2 (en) * 2006-06-07 2012-03-06 At&T Intellectual Property Ii, L.P. Tunable bidirectional multiplexer/demultiplexer for optical transmission system
US8280257B2 (en) * 2007-03-23 2012-10-02 Ciena Corporation Systems and methods for side-lobe compensation in reconfigurable optical add-drop multiplexers
JP5397445B2 (ja) * 2011-09-29 2014-01-22 沖電気工業株式会社 光中継装置
JP6258683B2 (ja) * 2013-12-03 2018-01-10 株式会社日立製作所 光伝送システム
US9654209B2 (en) * 2015-04-08 2017-05-16 Nec Corporation Low cost secure ROADM branching unit with redundancy protection
PL428292A1 (pl) * 2018-12-20 2020-06-29 Dawis It Spółka Z Ograniczoną Odpowiedzialnością Sposób oraz system transmisyjny do ulepszonej jednokierunkowej lub dwukierunkowej transmisji danych w sieci telekomunikacyjnej, układ atraktora polaryzacji, program komputerowy oraz produkt w postaci programu komputerowego

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161612B (en) 1984-07-11 1988-02-03 Stc Plc Optical fibre transmission systems
IT1237656B (it) 1989-10-30 1993-06-15 Pirelli Cavi Spa Adattatore per linee ottiche amplificate.
US5267073A (en) 1989-10-30 1993-11-30 Pirelli Cavi S.P.A. Amplifier adapter for optical lines
GB2266620B (en) 1992-04-27 1996-08-28 Univ Southampton Optical power limited amplifier
DE69530803D1 (de) * 1994-02-17 2003-06-26 Toshiba Kawasaki Kk Optisches Wellenlängenmultiplex Netzwerk
IT1270032B (it) 1994-04-14 1997-04-28 Pirelli Cavi Spa Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda
PE41196A1 (es) 1994-07-25 1996-12-17 Pirelli Cavi Spa Sistema de telecomunicacion amplificado para transmisiones en multiplex por division de longitud de onda, capaz de limitar las variaciones en la potencia de salida
SE514658C2 (sv) * 1994-12-21 2001-03-26 Ericsson Telefon Ab L M Nodarkitektur för tillämpning av optisk optimering (OADM)
US5566014A (en) * 1994-12-28 1996-10-15 At&T Corp. Tunable add/drop optical filter providing arbitrary channel arrangements
US5633741A (en) 1995-02-23 1997-05-27 Lucent Technologies Inc. Multichannel optical fiber communications
US5680490A (en) * 1995-09-08 1997-10-21 Lucent Technologies Inc. Comb splitting system and method for a multichannel optical fiber communication network
JP3977430B2 (ja) * 1996-03-29 2007-09-19 ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー 色分散補償用ノード
IT1283372B1 (it) * 1996-07-31 1998-04-17 Pirelli Cavi S P A Ora Pirelli Dispositivo per l'inserimento e l'estrazione di segnali ottici
US5959749A (en) * 1998-05-20 1999-09-28 Nortel Networks Corporation Optical add/drop multiplexer/demultiplexer

Also Published As

Publication number Publication date
WO1998005133A1 (en) 1998-02-05
AR008129A1 (es) 1999-12-09
EP1008239A1 (en) 2000-06-14
AU3941497A (en) 1998-02-20
EP1008239B1 (en) 2003-09-10
US6288810B1 (en) 2001-09-11
AU731543B2 (en) 2001-04-05
US20020196495A1 (en) 2002-12-26
CA2261918A1 (en) 1998-02-05
IT1283372B1 (it) 1998-04-17
BR9710612A (pt) 1999-08-17
NZ333360A (en) 1999-04-29
ITMI961638A1 (it) 1998-01-31
US6437888B1 (en) 2002-08-20

Similar Documents

Publication Publication Date Title
FR04C0028I2 (it)
AR026662A2 (it)
IN188456B (it)
IN190399B (it)
IN191996B (it)
ITMI960201A0 (it)
ITMI960654V0 (it)
ITAR960007A0 (it)
ITMI960034A0 (it)
IN186955B (it)
IN184428B (it)
BR7600721U (it)
BR7601346U (it)
ITMI960618A0 (it)
CN3047200S (it)
CN3043305S (it)
CN3046753S (it)
CN3047076S (it)
CN3044349S (it)
CN3045530S (it)
CN3047496S (it)
CN3046504S (it)
CN3044348S (it)
CN3044347S (it)
CN3047249S (it)

Legal Events

Date Code Title Description
0001 Granted