BR9807355A - Dispositivo amplificador óptico, rede de fibra óptica, e, processo para amplificar sinais luminosos viajando em um enlace de transmissão óptico - Google Patents

Dispositivo amplificador óptico, rede de fibra óptica, e, processo para amplificar sinais luminosos viajando em um enlace de transmissão óptico

Info

Publication number
BR9807355A
BR9807355A BR9807355-9A BR9807355A BR9807355A BR 9807355 A BR9807355 A BR 9807355A BR 9807355 A BR9807355 A BR 9807355A BR 9807355 A BR9807355 A BR 9807355A
Authority
BR
Brazil
Prior art keywords
amplifier
power
optical
preamplifier
gain
Prior art date
Application number
BR9807355-9A
Other languages
English (en)
Inventor
Dag Bonnedal
Johan Sandell
Magnus Sundelin
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9807355A publication Critical patent/BR9807355A/pt

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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • H01S3/06758—Tandem amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
    • 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
    • H04B10/2581—Multimode transmission
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H04B10/2941—Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/003—Devices including multiple stages, e.g., multi-stage optical amplifiers or dispersion compensators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

"DISPOSITIVO AMPLIFICADOR óPTICO, REDE DE FIBRA óPTICA, E, PROCESSO PARA AMPLIFICAR SINAIS LUMINOSOS VIAJANDO EM UM ENLACE DE TRANSMISSãO óPTICO". Um dispositivo amplificador óptico destinado a sinais luminosos WDM compreende um pré amplificador (3) e um amplificador de potência (11) do tipo amplificador de fibra óptica, que estão conectados em série e possuem curvas de ganho dependentes do comprimento de onda. Um atenuador controlável (5) é conectado entre os amplificadores (3 e 11) e é controlado por um dispositivo de controle (7). A entrada de sinal para o pré amplificador (3) possui uma potência baixa e é amplificada para prover um sinal de saída onde os sinais dos canais de entrada tenham sido amplificados com ganho diferentes. O sinal de entrada do amplificador de por (11) possui então uma potência maior resultando em uma característica de ganho diferente daquela do pré amplificador (3). Adaptando a atenuação do atenuador (5) para variações no sinal de entrada, a característica de ganho do amplificador de potência (11) pode ser ajustada de tal modo que a saída de sinal do dispositivo amplificador possua uma dependência espectral que é a mesma da dependência espectral original obtida sem variações. Também, a mesma dependência espectral pode ser mantida quando a potência luminosa de bomba do amplificador de potência é mudada e então o ganho total do amplificador é mudado, adaptando a atenuação do atenuador 5 de tal modo que o ganho do amplificador de potência não é mudado. No amplificador, o ruído mais baixo possível a partir do estágio pré amplificador é adicionado ao sinal de entrada e a potência de saída plena está sempre disponível a partir do amplificador de potência. Se o sinal de entrada é, por exemplo, aumentado, a SNR dos sinais passando através do amplificador é melhorada correspondentemente. Isto melhora o desempenho de uma rede óptica na qual o amplificador é usado.
BR9807355-9A 1997-02-14 1998-02-13 Dispositivo amplificador óptico, rede de fibra óptica, e, processo para amplificar sinais luminosos viajando em um enlace de transmissão óptico BR9807355A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700533A SE509968C2 (sv) 1997-02-14 1997-02-14 Optisk förstärkare med variabel förstärkning
PCT/SE1998/000255 WO1998036513A1 (en) 1997-02-14 1998-02-13 Optical fiber amplifier having variable gain

Publications (1)

Publication Number Publication Date
BR9807355A true BR9807355A (pt) 2000-04-18

Family

ID=20405805

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9807355-9A BR9807355A (pt) 1997-02-14 1998-02-13 Dispositivo amplificador óptico, rede de fibra óptica, e, processo para amplificar sinais luminosos viajando em um enlace de transmissão óptico

Country Status (14)

Country Link
US (1) US6421169B1 (pt)
EP (1) EP0960491B1 (pt)
JP (1) JP3992749B2 (pt)
KR (1) KR100343346B1 (pt)
CN (1) CN1135751C (pt)
AT (1) ATE295641T1 (pt)
AU (1) AU737550B2 (pt)
BR (1) BR9807355A (pt)
CA (1) CA2280962A1 (pt)
DE (1) DE69830145T2 (pt)
MY (1) MY119518A (pt)
SE (1) SE509968C2 (pt)
TW (1) TW366632B (pt)
WO (1) WO1998036513A1 (pt)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6369938B1 (en) 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
GB2314714B (en) * 1996-06-26 2000-04-05 Northern Telecom Ltd Optical amplifier modules
US6603596B2 (en) * 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
US6049413A (en) * 1998-05-22 2000-04-11 Ciena Corporation Optical amplifier having first and second stages and an attenuator controlled based on the gains of the first and second stages
EP0994583B1 (en) 1998-10-13 2001-09-12 Lucent Technologies Inc. Method and apparatus for controlling the optical power of an optical transmission signal
FR2787954A1 (fr) * 1998-12-28 2000-06-30 Cit Alcatel Amplification quasi-distribuee dans un systeme de transmission a fibre optique
FR2787953A1 (fr) * 1998-12-28 2000-06-30 Cit Alcatel Amplification quasi-distribuee dans un systeme de transmission a fibre optique
JP3844902B2 (ja) * 1999-03-02 2006-11-15 富士通株式会社 波長多重用光増幅器及び光通信システム
US6583923B1 (en) 1999-12-07 2003-06-24 Siemens Aktiengesellschaft Optical fiber amplifier
AUPQ574200A0 (en) * 2000-02-21 2000-03-16 Commonwealth Scientific And Industrial Research Organisation Starch branching enzyme
US6563628B2 (en) * 2000-02-25 2003-05-13 Fujikura Ltd. Gain tilt free optical fiber amplifier in a wide dynamic gain range
US6661946B2 (en) * 2001-07-09 2003-12-09 Lucent Technologies Inc. Method of controlling optical signal power at an add/drop node in a WDM optical communication system
US7460296B2 (en) * 2002-04-30 2008-12-02 Pivotal Decisions Llc Compensation for spectral power tilt from scattering
US6977770B2 (en) * 2002-06-14 2005-12-20 Fujitsu Limited Optical amplifier and control method therefor
EP1420491A3 (en) * 2002-11-18 2005-04-27 Fujitsu Limited Optical amplifier and optical amplifier control method
JP4359035B2 (ja) * 2002-11-21 2009-11-04 富士通株式会社 光中継器
KR100526560B1 (ko) * 2002-12-07 2005-11-03 삼성전자주식회사 자동파워조절 기능을 갖는 광섬유 증폭기 및 그 자동 파워조절 방법
US7361171B2 (en) 2003-05-20 2008-04-22 Raydiance, Inc. Man-portable optical ablation system
US20050038487A1 (en) * 2003-08-11 2005-02-17 Richard Stoltz Controlling pulse energy of an optical amplifier by controlling pump diode current
US20050065502A1 (en) * 2003-08-11 2005-03-24 Richard Stoltz Enabling or blocking the emission of an ablation beam based on color of target
US7115514B2 (en) 2003-10-02 2006-10-03 Raydiance, Inc. Semiconductor manufacturing using optical ablation
US8173929B1 (en) 2003-08-11 2012-05-08 Raydiance, Inc. Methods and systems for trimming circuits
US8921733B2 (en) 2003-08-11 2014-12-30 Raydiance, Inc. Methods and systems for trimming circuits
US9022037B2 (en) 2003-08-11 2015-05-05 Raydiance, Inc. Laser ablation method and apparatus having a feedback loop and control unit
US7143769B2 (en) * 2003-08-11 2006-12-05 Richard Stoltz Controlling pulse energy of an optical amplifier by controlling pump diode current
US7367969B2 (en) * 2003-08-11 2008-05-06 Raydiance, Inc. Ablative material removal with a preset removal rate or volume or depth
US20050068612A1 (en) * 2003-09-30 2005-03-31 Gordon Wilson Pre-programmable optical filtering / amplifying method and apparatus
US7247796B2 (en) * 2003-10-28 2007-07-24 3M Innovative Properties Company Filling materials
US20050111077A1 (en) * 2003-11-24 2005-05-26 Ching-Wen Hsiao Gain controller with selectable wavelength feedback
US7413847B2 (en) 2004-02-09 2008-08-19 Raydiance, Inc. Semiconductor-type processing for solid-state lasers
JP4451696B2 (ja) * 2004-03-30 2010-04-14 富士通株式会社 微細構造ファイバの非線形係数の波長依存性をキャンセルする装置
US7349452B2 (en) 2004-12-13 2008-03-25 Raydiance, Inc. Bragg fibers in systems for the generation of high peak power light
US8135050B1 (en) 2005-07-19 2012-03-13 Raydiance, Inc. Automated polarization correction
DE602006009587D1 (de) * 2005-08-08 2009-11-19 Univ Colorado Regents Verfahren zur Optimierung ultrakurzer Pulse in Multipass-Laserverstärkern unter selektiver Verwendung eines Spektralfilters
US7245419B2 (en) 2005-09-22 2007-07-17 Raydiance, Inc. Wavelength-stabilized pump diodes for pumping gain media in an ultrashort pulsed laser system
JP4717602B2 (ja) * 2005-11-16 2011-07-06 富士通株式会社 光増幅器
US7308171B2 (en) 2005-11-16 2007-12-11 Raydiance, Inc. Method and apparatus for optical isolation in high power fiber-optic systems
US7436866B2 (en) 2005-11-30 2008-10-14 Raydiance, Inc. Combination optical isolator and pulse compressor
US7444049B1 (en) 2006-01-23 2008-10-28 Raydiance, Inc. Pulse stretcher and compressor including a multi-pass Bragg grating
US9130344B2 (en) 2006-01-23 2015-09-08 Raydiance, Inc. Automated laser tuning
US8232687B2 (en) 2006-04-26 2012-07-31 Raydiance, Inc. Intelligent laser interlock system
US8189971B1 (en) 2006-01-23 2012-05-29 Raydiance, Inc. Dispersion compensation in a chirped pulse amplification system
US7822347B1 (en) 2006-03-28 2010-10-26 Raydiance, Inc. Active tuning of temporal dispersion in an ultrashort pulse laser system
US7715092B2 (en) * 2006-10-03 2010-05-11 Jds Uniphase Corporation Dynamic raman tilt compensation
JP5239223B2 (ja) 2007-06-21 2013-07-17 富士通株式会社 光増幅器
US7903326B2 (en) 2007-11-30 2011-03-08 Radiance, Inc. Static phase mask for high-order spectral phase control in a hybrid chirped pulse amplifier system
US7911684B1 (en) * 2008-03-07 2011-03-22 Oplink Communications, Inc. Variable gain erbium doped fiber amplifier
ATE509439T1 (de) * 2008-03-13 2011-05-15 Nokia Siemens Networks Oy Verfahren zur steuerung eines edfa-verstärkers (erbium doped fibre amplifier) und verstärkeranordnung
US8125704B2 (en) 2008-08-18 2012-02-28 Raydiance, Inc. Systems and methods for controlling a pulsed laser by combining laser signals
US9120181B2 (en) 2010-09-16 2015-09-01 Coherent, Inc. Singulation of layered materials using selectively variable laser output
US9059799B2 (en) * 2011-04-21 2015-06-16 Futurewei Technologies, Inc. Apparatus and method to calculate a noise figure of an optical amplifier for wavelength channels in a partial-fill scenario to account for channel loading
KR102455846B1 (ko) * 2016-03-14 2022-10-18 위-차지 리미티드. 광 무선 전력 공급장치용 시스템
CN111416665B (zh) * 2019-01-07 2022-04-15 中国移动通信有限公司研究院 一种光纤通信方法、装置、设备及存储介质
CN112310791B (zh) * 2020-10-23 2021-10-12 武汉光迅电子技术有限公司 一种增益调节方法和光纤放大器
CN114499673B (zh) * 2020-11-12 2024-07-26 莫列斯有限公司 光放大器模块及其增益控制方法
US12573802B2 (en) * 2022-05-03 2026-03-10 Lumentum Operations Llc Full-band, high-power optical amplifier
US12278693B2 (en) * 2022-12-06 2025-04-15 Ciena Corporation Stretched single optical span communications system and method avoiding hazardous power levels
CN119341647A (zh) * 2023-07-21 2025-01-21 中兴通讯股份有限公司 通道功率斜率的控制方法、装置、通信设备以及存储介质
KR102842404B1 (ko) * 2023-10-24 2025-08-05 주식회사엘디티 노이즈 성능이 개선된 적외선 수신 장치

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05241209A (ja) * 1992-03-02 1993-09-21 Fujitsu Ltd 光増幅器制御システム
DE4208857A1 (de) * 1992-03-19 1993-09-23 Sel Alcatel Ag Optisches nachrichtenuebertragungssystem mit faseroptischen verstaerkern und regelung der sender-wellenlaenge
GB9305977D0 (en) * 1993-03-23 1993-05-12 Northern Telecom Ltd Transmission system incorporating optical amplifiers
GB2280561B (en) * 1993-07-31 1997-03-26 Northern Telecom Ltd Optical transmission system
JPH07212315A (ja) * 1994-01-18 1995-08-11 Fujitsu Ltd 光増幅器
JPH08248455A (ja) * 1995-03-09 1996-09-27 Fujitsu Ltd 波長多重用光増幅器
JP3422398B2 (ja) * 1995-12-07 2003-06-30 富士通株式会社 重心波長モニタ方法及び装置、光増幅器並びに光通信システム
JP3730299B2 (ja) * 1996-02-07 2005-12-21 富士通株式会社 光等化増幅器および光等化増幅方法
GB2314714B (en) * 1996-06-26 2000-04-05 Northern Telecom Ltd Optical amplifier modules
US5900969A (en) * 1997-02-14 1999-05-04 Lucent Technologies Inc. Broadband flat gain optical amplifier

Also Published As

Publication number Publication date
CN1135751C (zh) 2004-01-21
TW366632B (en) 1999-08-11
WO1998036513A1 (en) 1998-08-20
EP0960491A1 (en) 1999-12-01
AU6234698A (en) 1998-09-08
KR20000070817A (ko) 2000-11-25
CA2280962A1 (en) 1998-08-20
DE69830145D1 (de) 2005-06-16
SE509968C2 (sv) 1999-03-29
DE69830145T2 (de) 2006-03-02
AU737550B2 (en) 2001-08-23
EP0960491B1 (en) 2005-05-11
JP2001511975A (ja) 2001-08-14
KR100343346B1 (ko) 2002-07-24
SE9700533D0 (sv) 1997-02-14
JP3992749B2 (ja) 2007-10-17
CN1247655A (zh) 2000-03-15
ATE295641T1 (de) 2005-05-15
MY119518A (en) 2005-06-30
US6421169B1 (en) 2002-07-16
SE9700533L (sv) 1998-09-01

Similar Documents

Publication Publication Date Title
BR9807355A (pt) Dispositivo amplificador óptico, rede de fibra óptica, e, processo para amplificar sinais luminosos viajando em um enlace de transmissão óptico
US5745283A (en) Method and apparatus for controlling optical amplifier used for optically amplifying wavelength-division multiplexed signal
RU2085043C1 (ru) Оптический усилитель для приема сигналов передачи в волоконно-оптической линии связи
KR950013083A (ko) 효율적인 펌프 파워 특성을 갖는 광섬유 증폭기
WO2000003460A3 (en) Fiber optic amplifier
EP1411655A3 (en) Self-seeded Fabry-Perot laser device for wavelength division multiplexing system
US20010019449A1 (en) Low-noise bidirectional optical amplifier
BR0008876A (pt) Sistema de comunicação óptico, e, processo para otimização do desempenho de um sistema de comunicação óptico wdm
EP0112076A3 (en) Light source for optic communication system
ES2117098T3 (es) Amplificador optico con espectro de ganancia autoajustable automaticamente.
EP0829979A3 (en) Multi-wavelength light source and discrete-wavelength-variable light source
SE9803348D0 (sv) WDM-channel equalizer
EP1376904B1 (en) Optical amplifier and control method therefor
US6204958B1 (en) Optical amplifier having a substantially flat gain spectrum
CA2173662A1 (en) Rare earth element-doped optical fiber amplifier
MY106104A (en) Active fibre optical amplifier, with double-core portions, having a wide signal wavelength band.
FR2803114B1 (fr) Amplificateur optique en bandes c et l plus systemes de transmission sous-marins
US20020159138A1 (en) Access device for pump source in cascade erbium-doped fiber amplification
US20020159132A1 (en) Enabler of large raman gain on small effective area fibers
JP3500262B2 (ja) 光信号分配システム
JP2934500B2 (ja) 光増幅器出力安定化方法及びそれを用いた光増幅器
US6650467B2 (en) Erbium-doped optical fiber amplifier using input optical signal filtering
US6097534A (en) Optical amplifier system generating high optical output level
JPH1174595A (ja) 光ファイバ増幅器
CN116318408B (zh) 一种自适应拉曼增益补偿系统及方法

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 12A ANUIDADE.

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 2073 DE 28/09/2010.

B15K Others concerning applications: alteration of classification

Ipc: H04B 10/291 (2013.01), H01S 3/067 (2006.0