DE69630734D1 - Lichtsignalempfangsvorrichtung mit verbesserter Funktion zum Beseitigen plötzlich aussteigender Lichtstösse - Google Patents
Lichtsignalempfangsvorrichtung mit verbesserter Funktion zum Beseitigen plötzlich aussteigender LichtstösseInfo
- Publication number
- DE69630734D1 DE69630734D1 DE69630734T DE69630734T DE69630734D1 DE 69630734 D1 DE69630734 D1 DE 69630734D1 DE 69630734 T DE69630734 T DE 69630734T DE 69630734 T DE69630734 T DE 69630734T DE 69630734 D1 DE69630734 D1 DE 69630734D1
- Authority
- DE
- Germany
- Prior art keywords
- eliminating
- receiving device
- signal receiving
- light
- improved function
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
- H04B10/675—Optical arrangements in the receiver for controlling the input optical signal for controlling the optical bandwidth of the input signal, e.g. spectral filtering
-
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
-
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
- H04B10/672—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal
- H04B10/673—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal using an optical preamplifier
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7137597A JPH08331048A (ja) | 1995-06-05 | 1995-06-05 | 光信号受信装置 |
JP13759795 | 1995-06-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69630734D1 true DE69630734D1 (de) | 2003-12-24 |
DE69630734T2 DE69630734T2 (de) | 2004-08-19 |
Family
ID=15202426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69630734T Expired - Lifetime DE69630734T2 (de) | 1995-06-05 | 1996-06-03 | Lichtsignalempfangsvorrichtung mit verbesserter Funktion zum Beseitigen plötzlich aussteigender Lichtstösse |
Country Status (4)
Country | Link |
---|---|
US (1) | US5701195A (de) |
EP (1) | EP0748068B1 (de) |
JP (1) | JPH08331048A (de) |
DE (1) | DE69630734T2 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3512264B2 (ja) * | 1995-05-08 | 2004-03-29 | 富士通株式会社 | 光増幅装置 |
JPH08331062A (ja) * | 1995-06-01 | 1996-12-13 | Toshiba Corp | 光受信回路 |
KR100210913B1 (ko) * | 1996-08-01 | 1999-07-15 | 윤종용 | 전송광의 파장을 자동 추적하여 필터링하는 광섬유증폭기 및 그 운용방법 |
JPH10173606A (ja) * | 1996-12-10 | 1998-06-26 | Kokusai Denshin Denwa Co Ltd <Kdd> | 光増幅中継伝送システム及び光増幅器 |
JPH10209970A (ja) * | 1997-01-21 | 1998-08-07 | Fujitsu Ltd | サージ出力を低減した光増幅器 |
JPH11112435A (ja) * | 1997-10-07 | 1999-04-23 | Fujitsu Ltd | 光増幅器 |
JPH11205238A (ja) | 1998-01-14 | 1999-07-30 | Nec Corp | 光サージ抑圧回路 |
JPH11205227A (ja) | 1998-01-14 | 1999-07-30 | Nec Corp | 光ファイバアンプサージ保護回路 |
JP3278605B2 (ja) * | 1998-01-30 | 2002-04-30 | 日本電気株式会社 | 光リミッタ |
JP3995781B2 (ja) * | 1998-02-02 | 2007-10-24 | 富士通株式会社 | 波長選択フィルタを用いた光分岐・挿入装置及び光分岐装置 |
US6222668B1 (en) * | 1998-05-08 | 2001-04-24 | Nortel Networks Limited | Fast loss of signal (LOS) detection for bidirectional optical amplifiers |
WO2001008331A1 (en) * | 1999-07-21 | 2001-02-01 | Luxn, Inc. | Automatic optical wavelength control |
US6437908B2 (en) * | 2000-02-03 | 2002-08-20 | Matsushita Electric Industrial Co., Ltd. | Optical amplifying device |
US6980747B1 (en) | 2000-11-28 | 2005-12-27 | Harris Corporation | Optically amplified receiver |
US20020131107A1 (en) * | 2001-03-16 | 2002-09-19 | Hait John N. | Hyper-dense photonic signal apparatus |
AU2002217528A1 (en) * | 2001-12-27 | 2003-07-30 | Mitsubishi Denki Kabushiki Kaisha | Optical surge suppressing circuit, and optical surge suppressing method |
US20030142984A1 (en) * | 2002-01-25 | 2003-07-31 | Yoshifumi Masuda | Optical communication circuit chip, optical/electrical common transmission apparatus, optical transmission apparatus, and electric apparatus using same |
WO2004105275A1 (ja) * | 2003-05-23 | 2004-12-02 | Fujitsu Limited | ラマン増幅による雑音光の補正機能を備えた光伝送システム |
US7711013B2 (en) * | 2004-03-31 | 2010-05-04 | Imra America, Inc. | Modular fiber-based chirped pulse amplification system |
JP4633548B2 (ja) * | 2005-06-08 | 2011-02-16 | 三菱電機株式会社 | 光受信装置 |
JP2007124472A (ja) * | 2005-10-31 | 2007-05-17 | Yokogawa Electric Corp | 光通信装置 |
JP4973559B2 (ja) * | 2008-03-24 | 2012-07-11 | 富士通株式会社 | 光増幅器および光サージ抑圧方法 |
DE102008045634A1 (de) * | 2008-09-03 | 2010-03-04 | Ludwig-Maximilians-Universität München | Wellenlängenabstimmbare Lichtquelle |
JP5811546B2 (ja) | 2011-02-23 | 2015-11-11 | 富士通株式会社 | 光受信装置および光増幅装置 |
JP5363521B2 (ja) * | 2011-03-07 | 2013-12-11 | 日本電信電話株式会社 | 光子周波数変換装置 |
JP5742329B2 (ja) * | 2011-03-16 | 2015-07-01 | 富士通株式会社 | 光増幅装置および光増幅方法 |
JP6079066B2 (ja) * | 2012-08-31 | 2017-02-15 | 富士通株式会社 | 受信装置及び受信方法 |
JP6683466B2 (ja) * | 2015-12-09 | 2020-04-22 | Necプラットフォームズ株式会社 | 光出力回路および光サージ検出方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4913507A (en) * | 1988-09-08 | 1990-04-03 | The United States Of America As Represented By The Secretary Of The Navy | Mode field conditioner |
IT1247845B (it) * | 1991-03-29 | 1995-01-02 | Pirelli Cavi Spa | Linea di telecomunicazione a fibre ottiche con dispositivo di protezione per amplificatori ottici |
IT1247844B (it) * | 1991-03-29 | 1995-01-02 | Pirelli Cavi S P A Dir Proprie | Linea di telecomunicazione a fibre ottiche con amplificatori ottici, dotata di mezzi di protezione in grado di interrompere l'emissione luminosa in tutta la linea in presenza di un'interruzione della fibra ottica e di riattivarla automaticamente al ripristino della sua continuita' |
JP3256713B2 (ja) * | 1992-06-27 | 2002-02-12 | キヤノン株式会社 | 波長可変フィルタ制御方式、制御装置及びそれを用いた光通信システム |
DE4222208A1 (de) * | 1992-07-07 | 1994-01-13 | Sel Alcatel Ag | Optisches Nachrichtenübertragungssystem mit optischem Filter zum Schutz vor Riesenimpulsen |
US5329397A (en) * | 1992-08-04 | 1994-07-12 | Chang I Cheng | Acousto-optic tunable filter |
JP2751789B2 (ja) * | 1993-07-14 | 1998-05-18 | 日本電気株式会社 | 光ファイバ増幅器 |
US5504608A (en) * | 1995-05-25 | 1996-04-02 | At&T Corp. | Adjustable filter for tuning multimode optical signals |
-
1995
- 1995-06-05 JP JP7137597A patent/JPH08331048A/ja not_active Withdrawn
-
1996
- 1996-05-31 US US08/658,944 patent/US5701195A/en not_active Expired - Lifetime
- 1996-06-03 DE DE69630734T patent/DE69630734T2/de not_active Expired - Lifetime
- 1996-06-03 EP EP96108868A patent/EP0748068B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0748068B1 (de) | 2003-11-19 |
US5701195A (en) | 1997-12-23 |
JPH08331048A (ja) | 1996-12-13 |
EP0748068A2 (de) | 1996-12-11 |
EP0748068A3 (de) | 2001-03-07 |
DE69630734T2 (de) | 2004-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |