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 ópticoInfo
- 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
- gain
- preamplifier
- power amplifier
- Prior art date
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.
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 (49)
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 |
FR2787953A1 (fr) * | 1998-12-28 | 2000-06-30 | Cit Alcatel | Amplification quasi-distribuee dans un systeme de transmission a fibre optique |
FR2787954A1 (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 |
US7202997B2 (en) * | 2002-11-18 | 2007-04-10 | 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 |
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 |
US7367969B2 (en) * | 2003-08-11 | 2008-05-06 | Raydiance, Inc. | Ablative material removal with a preset removal rate or volume or depth |
US20050065502A1 (en) * | 2003-08-11 | 2005-03-24 | Richard Stoltz | Enabling or blocking the emission of an ablation beam based on color of target |
US20050038487A1 (en) * | 2003-08-11 | 2005-02-17 | Richard Stoltz | Controlling pulse energy of an optical amplifier by controlling pump diode current |
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 |
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 |
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 |
JP4717602B2 (ja) | 2005-11-16 | 2011-07-06 | 富士通株式会社 | 光増幅器 |
US8232687B2 (en) | 2006-04-26 | 2012-07-31 | Raydiance, Inc. | Intelligent laser interlock system |
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 |
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 |
EP2101426B1 (en) * | 2008-03-13 | 2011-05-11 | Nokia Siemens Networks Oy | Method for controlling an erbium doped fibre amplifier (EDFA) and amplifier arrangement |
US8125704B2 (en) | 2008-08-18 | 2012-02-28 | Raydiance, Inc. | Systems and methods for controlling a pulsed laser by combining laser signals |
US9114482B2 (en) | 2010-09-16 | 2015-08-25 | Raydiance, Inc. | Laser based processing of layered materials |
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 |
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 |
Family Cites Families (10)
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 |
-
1997
- 1997-02-14 SE SE9700533A patent/SE509968C2/sv not_active IP Right Cessation
-
1998
- 1998-02-13 BR BR9807355-9A patent/BR9807355A/pt not_active IP Right Cessation
- 1998-02-13 CA CA002280962A patent/CA2280962A1/en not_active Abandoned
- 1998-02-13 JP JP53566598A patent/JP3992749B2/ja not_active Expired - Lifetime
- 1998-02-13 AT AT98904494T patent/ATE295641T1/de not_active IP Right Cessation
- 1998-02-13 KR KR1019997007080A patent/KR100343346B1/ko not_active IP Right Cessation
- 1998-02-13 CN CNB988025205A patent/CN1135751C/zh not_active Expired - Lifetime
- 1998-02-13 DE DE69830145T patent/DE69830145T2/de not_active Expired - Lifetime
- 1998-02-13 TW TW087102048A patent/TW366632B/zh not_active IP Right Cessation
- 1998-02-13 AU AU62346/98A patent/AU737550B2/en not_active Ceased
- 1998-02-13 EP EP98904494A patent/EP0960491B1/en not_active Expired - Lifetime
- 1998-02-13 WO PCT/SE1998/000255 patent/WO1998036513A1/en active IP Right Grant
- 1998-02-14 MY MYPI98000633A patent/MY119518A/en unknown
-
1999
- 1999-08-02 US US09/368,468 patent/US6421169B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1247655A (zh) | 2000-03-15 |
SE9700533D0 (sv) | 1997-02-14 |
SE9700533L (sv) | 1998-09-01 |
EP0960491A1 (en) | 1999-12-01 |
DE69830145D1 (de) | 2005-06-16 |
KR100343346B1 (ko) | 2002-07-24 |
ATE295641T1 (de) | 2005-05-15 |
WO1998036513A1 (en) | 1998-08-20 |
KR20000070817A (ko) | 2000-11-25 |
CA2280962A1 (en) | 1998-08-20 |
JP2001511975A (ja) | 2001-08-14 |
MY119518A (en) | 2005-06-30 |
US6421169B1 (en) | 2002-07-16 |
TW366632B (en) | 1999-08-11 |
EP0960491B1 (en) | 2005-05-11 |
AU737550B2 (en) | 2001-08-23 |
JP3992749B2 (ja) | 2007-10-17 |
CN1135751C (zh) | 2004-01-21 |
DE69830145T2 (de) | 2006-03-02 |
SE509968C2 (sv) | 1999-03-29 |
AU6234698A (en) | 1998-09-08 |
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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 |