[go: up one dir, main page]

BR9811116A - Sistema de comunicação ótica, amplificador de linha ótica, e, processo para transmitir sinais óticos - Google Patents

Sistema de comunicação ótica, amplificador de linha ótica, e, processo para transmitir sinais óticos

Info

Publication number
BR9811116A
BR9811116A BR9811116-7A BR9811116A BR9811116A BR 9811116 A BR9811116 A BR 9811116A BR 9811116 A BR9811116 A BR 9811116A BR 9811116 A BR9811116 A BR 9811116A
Authority
BR
Brazil
Prior art keywords
sub
optical
bands
broadband
line amplifier
Prior art date
Application number
BR9811116-7A
Other languages
English (en)
Inventor
Fausto Meli
Gianpaolo Barozzi
Stefano Piciaccia
Stefano Aina
Silvia Turolla
Original Assignee
Pirelli Cavi E Sistemi Spa
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 Pirelli Cavi E Sistemi Spa filed Critical Pirelli Cavi E Sistemi Spa
Publication of BR9811116A publication Critical patent/BR9811116A/pt

Links

Classifications

    • 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)
  • Lasers (AREA)

Abstract

"SISTEMA DE COMUNICAçãO óTICA, AMPLIFICADOR DE LINHA óTICA, E, PROCESSO PARA TRANSMITIR SINAIS óTICOS". Um sistema de transmissão ótica foi projetado para otimizar o uso da faixa de emissão espectral de amplificadores de fibra dopada com terra rara. O sistema inclui uma banda larga de canais na faixa de emissão espectral de amplificadores de fibra dopada com érbio, que é dividida em duas sub-bandas, uma sub-banda baixa correspondendo à extremidade baixa da faixa e uma sub-banda alta correspondendo à extremidade alta da faixa. As duas sub-bandas são separadamente amplificadas e otimizadas, e então recombinadas sem significante competição entre as duas sub-bandas. Em adição, um filtro de equalização, tal como um filtro de Bragg especializado ou filtro interferencial, é aplicado à sub-banda baixa em vez da banda inteira de canais, assim grandemente reduzindo necessidade de equalização ou efeitos de não equalização. Em um amplificador de linha ótica para o sistema, a banda larga é aplificada em um primeiro estágio de um amplificador de fibra que opera em uma condição linear, a banda larga é dividida nas duas sub-bandas e uma ou as duas sub-bandas são amplificadas com o segundo estágio do amplificador de fibra que opera em uma condição de saturação.
BR9811116-7A 1997-08-01 1998-06-29 Sistema de comunicação ótica, amplificador de linha ótica, e, processo para transmitir sinais óticos BR9811116A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97113332 1997-08-01
PCT/EP1998/003967 WO1999007096A1 (en) 1997-08-01 1998-06-29 Multi-band amplification system for dense wavelength division multiplexing

Publications (1)

Publication Number Publication Date
BR9811116A true BR9811116A (pt) 2000-07-18

Family

ID=8227166

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9811116-7A BR9811116A (pt) 1997-08-01 1998-06-29 Sistema de comunicação ótica, amplificador de linha ótica, e, processo para transmitir sinais óticos

Country Status (7)

Country Link
US (1) US6259555B1 (pt)
EP (1) EP1000477A1 (pt)
JP (1) JP2001512922A (pt)
AU (1) AU8802498A (pt)
BR (1) BR9811116A (pt)
CA (1) CA2299441A1 (pt)
WO (1) WO1999007096A1 (pt)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6731875B1 (en) 1998-09-22 2004-05-04 Lucent Technologies Inc. Wavelength bus architecture for ultra-high speed dense wavelength division multiplexed systems
US6580538B1 (en) 1998-09-22 2003-06-17 Lucent Technologies Inc. Reduction of optical impairments in wavelength division multiplexed systems employing a wavelength bus architecture
US6493118B1 (en) * 1998-09-22 2002-12-10 Lucent Technologies Inc. Add/drop capability for ultra-high speed dense wavelength division multiplexed systems using a wavelength bus architecture
JP2001024586A (ja) * 1999-07-05 2001-01-26 Nec Corp 光分岐装置
US6885824B1 (en) 2000-03-03 2005-04-26 Optical Coating Laboratory, Inc. Expandable optical array
JP3803000B2 (ja) * 1999-09-28 2006-08-02 富士通株式会社 波長間光パワー偏差のモニタ方法、並びに、それを用いた光等化器および光増幅器
JP4013425B2 (ja) * 1999-10-18 2007-11-28 富士通株式会社 複数波長帯域光増幅器
EP1224493A1 (en) * 1999-10-21 2002-07-24 Corning O.T.I., Inc. Optical wavelength multiplexing device and wdm optical telecommunication system
US6735394B1 (en) * 1999-12-15 2004-05-11 Tellabs Operations, Inc. Per-channel optical amplification using saturation mode
JP3651876B2 (ja) 2000-02-07 2005-05-25 エヌティティエレクトロニクス株式会社 波長多重光信号の合分波方式
US6421167B1 (en) * 2000-03-03 2002-07-16 General Dynamics Advanced Technology Systems, Inc. Multiple function bandwidth management systems
JP2002158636A (ja) * 2000-03-29 2002-05-31 Hitachi Ltd 光伝送装置およびその監視システム
AU2001280919A1 (en) * 2000-11-02 2002-05-15 Luxcore Networks, Inc. Wavelength-selective demultiplexer
US6646795B1 (en) 2000-11-20 2003-11-11 Nortel Networks Limited Optical amplifier
US6437906B1 (en) 2000-11-22 2002-08-20 Cisco Technology, Inc. All-optical gain controlled L-band EDFA structure with reduced four-wave mixing cross-talk
US6961522B1 (en) 2000-11-22 2005-11-01 Cisco Technology, Inc. Automatic raman gain and tilt control for ultra-long-distance dense WDM optical communication system
US6525869B1 (en) * 2001-04-30 2003-02-25 Nortel Networks Limited Raman amplifier
US6941079B1 (en) 2001-05-24 2005-09-06 Cisco Technology, Inc. Optical demultiplexer with multi-channel power control and tilt compensation
US6697193B1 (en) 2001-06-06 2004-02-24 Cisco Technology, Inc. Shared variable gain amplifier for WDM channel equalization
US6728028B1 (en) 2001-07-30 2004-04-27 Cisco Technology, Inc. Low noise figure optical amplifier for DWDM systems with per sub-band power control
US6927898B2 (en) * 2001-08-15 2005-08-09 Photon-X, Llc Ultra-wide bandwidth optical amplifier
JP2003087205A (ja) * 2001-09-13 2003-03-20 Hitachi Ltd 光伝送システム
US6775424B2 (en) 2001-11-12 2004-08-10 Fujitsu Network Communications, Inc. Modulation and filtration of optical signals
US7196840B2 (en) * 2001-11-29 2007-03-27 Broadband Royalty Corporation Amplitude balancing for multilevel signal transmission
US6621626B1 (en) 2001-12-05 2003-09-16 Cisco Technology, Inc. Modular optical amplifier structure for highly dense interleaved WDM systems
US7155124B2 (en) * 2002-05-31 2006-12-26 Fujitsu Limited Loss-less architecture and method for wavelength division multiplexing (WDM) optical networks
US6922529B2 (en) * 2002-08-09 2005-07-26 Corvis Corporation Optical communications systems, devices, and methods
US7054059B1 (en) 2003-05-14 2006-05-30 Cisco Technoloy, Inc. Lumped Raman amplification structure for very wideband applications
JP4643645B2 (ja) * 2004-08-11 2011-03-02 タイコ エレクトロニクス サブシー コミュニケーションズ エルエルシー 光伝送システムにスペクトル負荷を与えるシステム及び方法
US7681333B2 (en) * 2004-10-29 2010-03-23 The Timberland Company Shoe footbed system with interchangeable cartridges
US7461470B2 (en) * 2004-10-29 2008-12-09 The Timberland Company Shoe footbed system and method with interchangeable cartridges
US7762008B1 (en) 2005-09-07 2010-07-27 The Timberland Company Extreme service footwear
DE102008003089A1 (de) * 2007-08-06 2009-02-26 Siemens Ag Datenübertragungssystem und Verfahren zum Übertragen von Daten in einem Datenübertragungssystem
US10498460B2 (en) * 2018-03-02 2019-12-03 Juniper Networks, Inc. Amplified multistage demultiplexer
JP7135783B2 (ja) * 2018-11-27 2022-09-13 富士通株式会社 伝送システム、伝送装置、及び伝送方法
US11522629B2 (en) * 2021-01-21 2022-12-06 Ciena Corporation Channelized optical amplifiers and amplifier arrays
JP7690759B2 (ja) * 2021-03-22 2025-06-11 日本電気株式会社 光ネットワーク管理装置、光ネットワークシステム、光ネットワーク管理方法および光ネットワーク管理プログラム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4007097A1 (de) * 1990-03-07 1991-09-19 Daimler Benz Ag Optisches kommunikationssystem
US5260823A (en) 1990-05-21 1993-11-09 University Of Southampton Erbium-doped fibre amplifier with shaped spectral gain
GB9305977D0 (en) * 1993-03-23 1993-05-12 Northern Telecom Ltd Transmission system incorporating optical amplifiers
US5392154A (en) * 1994-03-30 1995-02-21 Bell Communications Research, Inc. Self-regulating multiwavelength optical amplifier module for scalable lightwave communications systems
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
IT1273676B (it) 1994-07-25 1997-07-09 Pirelli Cavi Spa Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata
US5563733A (en) * 1994-08-25 1996-10-08 Matsushita Electric Industrial Co., Ltd. Optical fiber amplifier and optical fiber transmission system
GB9420132D0 (en) 1994-10-05 1994-11-16 Norhern Telecom Limited Optical amplifiers
IT1275554B (it) * 1995-07-14 1997-08-07 Pirelli Cavi Spa Dispositivo per la riduzione del rumore ottico dovuto ad interazione a quattro onde
US5801858A (en) * 1996-06-25 1998-09-01 Northern Telecom Limited Optical transmission systems using optical amplifiers and wavelength division multiplexing
US6049417A (en) * 1997-06-02 2000-04-11 Lucent Technologies Inc. Wide band optical amplifier

Also Published As

Publication number Publication date
AU8802498A (en) 1999-02-22
WO1999007096A1 (en) 1999-02-11
CA2299441A1 (en) 1999-02-11
US6259555B1 (en) 2001-07-10
EP1000477A1 (en) 2000-05-17
JP2001512922A (ja) 2001-08-28

Similar Documents

Publication Publication Date Title
BR9811116A (pt) Sistema de comunicação ótica, amplificador de linha ótica, e, processo para transmitir sinais óticos
EP1187276A3 (en) Optical amplifier for wide band raman amplification of wavelength division multiplexed (WDM) signal lights
PE26096A1 (es) Sistema de telecomunicacion amplificada para transmisiones multiplexadas por division de longitud de onda
US6151160A (en) Broadband Raman pre-amplifier for wavelength division multiplexed optical communication systems
US6122298A (en) Multi-wavelength optical pump
CA2387645A1 (en) Multiple wavelength optical sources
AU2003285158A1 (en) Fiber amplifier having a non-doped inner core and at least one doped gain region
ITRM970096A1 (it) Amplificatore a fibra ottica drogata con er.
EP1083446A4 (en) OPTICAL TRANSMISSION LINE, OPTICAL FIBER WITH NEGATIVE DISPERSION FOR THE OPTICAL TRANSMISSION LINE, AND OPTICAL TRANSMISSION SYSTEM CONTAINING AN OPTICAL TRANSMISSION LINE
EP1263096A3 (en) Improved wide band erbium-doped fiber amplfier (EDFA)
CA2021801A1 (en) Double active-fiber optical amplifier having a wide-band signal wavelength
ATE274712T1 (de) Optisches nachrichtenkabel
EP0887954A3 (en) Noise figure measurement of optical amplifiers by power substitution
GB0327661D0 (en) Optical Amplifier
JPH0864895A (ja) 多段ファイバ増幅器
EP1130820A3 (en) Optical amplification method for two wavelength subbands
CA2173662A1 (en) Rare earth element-doped optical fiber amplifier
JP4411696B2 (ja) 光カプラ、光増幅装置および光通信システム
WO2002061987A3 (en) S+ band nonlinear polarization amplifiers
CA2254487A1 (en) Optical fiber amplifier
US20020027472A1 (en) Multi-stage bidirectional optical amplifier
MX9203865A (es) Amplificador de fibra optica.
KR100474721B1 (ko) 어븀 첨가 광섬유를 이용한 광대역 증폭기
FR2803114B1 (fr) Amplificateur optique en bandes c et l plus systemes de transmission sous-marins
KR100349007B1 (en) Low noise optical amplifying device and optical communication system using the same

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A, 6A, 7A, 8A E 9A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1909 DE 07/08/2007.