IT1296852B1 - Amplificatore ottico e procedimento e apparecchiatura di controllo di guadagno di amplificatore ottico - Google Patents
Amplificatore ottico e procedimento e apparecchiatura di controllo di guadagno di amplificatore otticoInfo
- Publication number
- IT1296852B1 IT1296852B1 IT97MI002727A ITMI972727A IT1296852B1 IT 1296852 B1 IT1296852 B1 IT 1296852B1 IT 97MI002727 A IT97MI002727 A IT 97MI002727A IT MI972727 A ITMI972727 A IT MI972727A IT 1296852 B1 IT1296852 B1 IT 1296852B1
- Authority
- IT
- Italy
Links
Classifications
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
- H01S5/06832—Stabilising during amplitude modulation
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32980296 | 1996-12-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
ITMI972727A1 ITMI972727A1 (it) | 1999-06-09 |
IT1296852B1 true IT1296852B1 (it) | 1999-08-02 |
Family
ID=18225419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT97MI002727A IT1296852B1 (it) | 1996-12-10 | 1997-12-09 | Amplificatore ottico e procedimento e apparecchiatura di controllo di guadagno di amplificatore ottico |
Country Status (3)
Country | Link |
---|---|
US (1) | US6008935A (it) |
FR (1) | FR2756983B1 (it) |
IT (1) | IT1296852B1 (it) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1168205A (ja) * | 1997-08-18 | 1999-03-09 | Nec Corp | 波長多重伝送用の光増幅器 |
AU4653699A (en) * | 1998-11-06 | 2000-05-29 | Sumitomo Electric Industries, Ltd. | Method and apparatus for optical communication monitoring, optical amplifier system, method of controlling optical amplifier system, and optical communication system |
US6163399A (en) * | 1998-12-08 | 2000-12-19 | Nortel Networks Limited | Method and apparatus for suppressing transients in optical amplifiers |
JP3851007B2 (ja) * | 1998-12-18 | 2006-11-29 | 富士通株式会社 | 波長多重光検出装置 |
US6690884B1 (en) * | 1999-02-19 | 2004-02-10 | Corvis Corporation | Optical transmission systems including error correction and protection apparatuses and methods |
WO2001011392A2 (en) * | 1999-08-10 | 2001-02-15 | Coretek, Inc. | Optical fiber wavelength reference device |
JP2001168799A (ja) * | 1999-12-08 | 2001-06-22 | Nec Corp | 光通信システム及びそれに用いる光中継器 |
JP2001196670A (ja) * | 2000-01-12 | 2001-07-19 | Oki Electric Ind Co Ltd | 光増幅器 |
US6519081B2 (en) * | 2000-04-13 | 2003-02-11 | Corning Incorporated | Method of operating a noise-compensating gain controller for an optical amplifier |
US7130537B1 (en) * | 2000-08-25 | 2006-10-31 | Alcatel | Safety shutdown system for a WDM fiber optic communications network |
WO2002021204A1 (en) * | 2000-09-07 | 2002-03-14 | Fujitsu Limited | Optical amplifier using raman amplification |
EP1868030B1 (en) * | 2000-09-07 | 2012-12-19 | Fujitsu Ltd. | Optical amplification apparatus using Raman amplification |
US6498677B1 (en) * | 2000-10-23 | 2002-12-24 | Onetta, Inc. | Optical amplifier systems with transient control |
US6590700B1 (en) * | 2002-02-11 | 2003-07-08 | Nortel Networks Limited | Adaptive optical amplifier control |
US7042634B2 (en) * | 2002-03-14 | 2006-05-09 | Nippon Telegraph And Telephone Corporation | Optical amplifier |
US20040017603A1 (en) * | 2002-07-29 | 2004-01-29 | Paul Jay | Optical amplifier controller |
JP4084144B2 (ja) * | 2002-09-10 | 2008-04-30 | 富士通株式会社 | 光増幅装置 |
GB0413017D0 (en) * | 2004-06-10 | 2004-07-14 | Bookham Technology Plc | Optical amplifiers |
JP4929664B2 (ja) * | 2005-03-14 | 2012-05-09 | 富士通株式会社 | 光増幅器の制御装置、光増幅器の制御方法、光伝送装置、光増幅器、帯域単位利得等化器を用いた光増幅器及び帯域単位利得等化器を用いた波長多重伝送システム |
JP4866625B2 (ja) * | 2006-02-15 | 2012-02-01 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
US8937762B2 (en) | 2010-04-20 | 2015-01-20 | Fujitsu Limited | Level control circuit, level control method, and level control system |
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 |
US11362755B2 (en) * | 2018-08-31 | 2022-06-14 | Nokia Solutions And Networks Oy | Adaptive capacity optimization in optical transmission systems |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2734778B2 (ja) * | 1991-01-16 | 1998-04-02 | 日本電気株式会社 | 光増幅装置 |
JPH0575198A (ja) * | 1991-09-18 | 1993-03-26 | Toshiba Corp | 光増幅装置 |
JP2550898B2 (ja) * | 1993-11-30 | 1996-11-06 | 日本電気株式会社 | 光増幅装置 |
JP2778438B2 (ja) * | 1993-12-27 | 1998-07-23 | 日本電気株式会社 | 光増幅装置と光増幅器設計方法と光中継伝送システム |
JPH08265258A (ja) * | 1995-03-20 | 1996-10-11 | Fujitsu Ltd | 光増幅中継器 |
JP2871547B2 (ja) * | 1995-09-08 | 1999-03-17 | 日本電気株式会社 | 光スペクトルアナライザ装置および光増幅器の制御方法 |
JP2947136B2 (ja) * | 1995-09-14 | 1999-09-13 | 日本電気株式会社 | 光増幅器 |
JP3363003B2 (ja) * | 1995-10-03 | 2003-01-07 | 株式会社日立製作所 | 光増幅装置及び光増幅装置を用いた光伝送システム |
JPH1051388A (ja) * | 1996-08-01 | 1998-02-20 | Nec Corp | 光増幅装置 |
JP3006500B2 (ja) * | 1996-08-01 | 2000-02-07 | 日本電気株式会社 | 波長多重光伝送用光増幅装置 |
JP3808580B2 (ja) * | 1997-03-17 | 2006-08-16 | 富士通株式会社 | 光パワーモニタ及び該光パワーモニタを有する光増幅器 |
-
1997
- 1997-12-09 IT IT97MI002727A patent/IT1296852B1/it active IP Right Grant
- 1997-12-09 US US08/987,840 patent/US6008935A/en not_active Expired - Lifetime
- 1997-12-10 FR FR9715621A patent/FR2756983B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2756983B1 (fr) | 1999-07-16 |
ITMI972727A1 (it) | 1999-06-09 |
FR2756983A1 (fr) | 1998-06-12 |
US6008935A (en) | 1999-12-28 |
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Legal Events
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0001 | Granted |