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WO2009060522A1 - 光送受信モジュールおよびその管理制御方法，光送受信装置ならびに波長多重光送受信装置 - Google Patents

光送受信モジュールおよびその管理制御方法，光送受信装置ならびに波長多重光送受信装置 Download PDF

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Publication number
WO2009060522A1
WO2009060522A1 PCT/JP2007/071647 JP2007071647W WO2009060522A1 WO 2009060522 A1 WO2009060522 A1 WO 2009060522A1 JP 2007071647 W JP2007071647 W JP 2007071647W WO 2009060522 A1 WO2009060522 A1 WO 2009060522A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical transceiver
optical
light
attenuation control
variable attenuation
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.)
Ceased
Application number
PCT/JP2007/071647
Other languages
English (en)
French (fr)
Inventor
Yuichi Nagaki
Tsutomu Aiba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/JP2007/071647 priority Critical patent/WO2009060522A1/ja
Priority to JP2009539907A priority patent/JPWO2009060522A1/ja
Publication of WO2009060522A1 publication Critical patent/WO2009060522A1/ja
Priority to US12/771,161 priority patent/US8396362B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04B10/40—Transceivers
    • 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
    • H04J14/02216—Power control, e.g. to keep the total optical power constant by gain equalization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0297—Optical equipment protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)

Abstract

　受信信号光の入力レベルを常に適正範囲に安定化させるため、本発明の光送受信モジュールは、光を出力する光出力部（１ａ）と、入力される光を受光し前記受光した光強度に応じた強度の電気信号を出力する受光部（１ｂ′）と、光出力部（１ａ）から出力された光について可変減衰制御する第１可変減衰制御部（１２）と、受光部（１ｂ′）に入力される光について可変減衰制御する第２可変減衰制御部（１３）と、第１可変減衰制御部（１２）からの光について、光送信用方路か、又は前記光送信用方路と異なる他方路のいずれか一方を通じて選択的に切り替えて出力する第１スイッチ（３）と、外部からの光か又は第１スイッチ（３）の前記他方路からの光のいずれか一方を選択的に切り替えて第２可変減衰制御部（１３）に出力する第２スイッチ（７）と、をそなえる。
PCT/JP2007/071647 2007-11-07 2007-11-07 光送受信モジュールおよびその管理制御方法，光送受信装置ならびに波長多重光送受信装置 Ceased WO2009060522A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2007/071647 WO2009060522A1 (ja) 2007-11-07 2007-11-07 光送受信モジュールおよびその管理制御方法，光送受信装置ならびに波長多重光送受信装置
JP2009539907A JPWO2009060522A1 (ja) 2007-11-07 2007-11-07 光送受信モジュールおよびその管理制御方法，光送受信装置ならびに波長多重光送受信装置
US12/771,161 US8396362B2 (en) 2007-11-07 2010-04-30 Light transmitting and receiving module, method for managing the same, light transmitting and receiving apparatus, and wavelength-multiplexing light transmitting and receiving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/071647 WO2009060522A1 (ja) 2007-11-07 2007-11-07 光送受信モジュールおよびその管理制御方法，光送受信装置ならびに波長多重光送受信装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/771,161 Continuation US8396362B2 (en) 2007-11-07 2010-04-30 Light transmitting and receiving module, method for managing the same, light transmitting and receiving apparatus, and wavelength-multiplexing light transmitting and receiving apparatus

Publications (1)

Publication Number Publication Date
WO2009060522A1 true WO2009060522A1 (ja) 2009-05-14

Family

ID=40625437

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/071647 Ceased WO2009060522A1 (ja) 2007-11-07 2007-11-07 光送受信モジュールおよびその管理制御方法，光送受信装置ならびに波長多重光送受信装置

Country Status (3)

Country Link
US (1) US8396362B2 (ja)
JP (1) JPWO2009060522A1 (ja)
WO (1) WO2009060522A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102882607A (zh) * 2012-09-10 2013-01-16 青岛海信宽带多媒体技术有限公司 光模块及调节光模块接收光功率的方法
JP2013070280A (ja) * 2011-09-22 2013-04-18 Nec Corp 光通信装置、光通信システム、および経路制御方法
JP2017092763A (ja) * 2015-11-12 2017-05-25 日本電気株式会社 光送受信機およびループバック方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465693B (zh) * 2008-12-17 2011-11-30 华为技术有限公司 一种在微波系统中发射/接收信号的方法及装置
US8625997B2 (en) * 2010-12-30 2014-01-07 Infinera Corporation Method and apparatus for local optimization of an optical transmitter
JP5703949B2 (ja) * 2011-05-12 2015-04-22 富士通株式会社 Ｗｄｍ光伝送システムおよび波長分散補償方法
JP5970943B2 (ja) * 2012-05-01 2016-08-17 富士通株式会社 光伝送装置、及び光伝送方法
US9178610B1 (en) * 2013-03-14 2015-11-03 Google Inc. Optical loopback in a wavelength division multiplexing system
JP6103097B1 (ja) * 2016-03-18 2017-03-29 日本電気株式会社 光伝送装置及びその制御方法
US10897314B2 (en) * 2017-03-03 2021-01-19 Nec Corporation Optical transceiver and optical transmission/reception method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0548534A (ja) * 1991-07-09 1993-02-26 Toshiba Corp 光通信方式
JP2000307519A (ja) * 1999-04-20 2000-11-02 N Ii C Cable Media Kk 双方向光通信システム及びその光送受信レベル設定方法
JP2001168843A (ja) * 1999-12-08 2001-06-22 Nec Eng Ltd 光バースト送受信回路
JP2002190775A (ja) * 2000-12-20 2002-07-05 Nec Corp 冗長システム、予備系試験システム、及びその方法。

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6031647A (en) * 1996-10-23 2000-02-29 Nortel Networks Corporation Stable power control for optical transmission systems
JP2000332655A (ja) 1999-05-20 2000-11-30 Mitsubishi Electric Corp 光波長多重システムの光冗長切り替え方法
JP2004023295A (ja) 2002-06-13 2004-01-22 Mitsubishi Electric Corp 波長多重光送信装置
EP1380828B1 (en) * 2002-07-11 2011-06-22 Avago Technologies Fiber IP (Singapore) Pte. Ltd. Optoelectronic module with integrated loop-back capability
WO2004008833A2 (en) * 2002-07-24 2004-01-29 Ciena Corporation Method and system for providing protection in an optical communication network
JP2005269194A (ja) * 2004-03-18 2005-09-29 Mitsubishi Electric Corp 光受信器
JP4571054B2 (ja) * 2005-09-30 2010-10-27 富士通株式会社 光波長制御方法及びそのシステム
JP4679411B2 (ja) * 2006-03-31 2011-04-27 富士通株式会社 光通信装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0548534A (ja) * 1991-07-09 1993-02-26 Toshiba Corp 光通信方式
JP2000307519A (ja) * 1999-04-20 2000-11-02 N Ii C Cable Media Kk 双方向光通信システム及びその光送受信レベル設定方法
JP2001168843A (ja) * 1999-12-08 2001-06-22 Nec Eng Ltd 光バースト送受信回路
JP2002190775A (ja) * 2000-12-20 2002-07-05 Nec Corp 冗長システム、予備系試験システム、及びその方法。

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013070280A (ja) * 2011-09-22 2013-04-18 Nec Corp 光通信装置、光通信システム、および経路制御方法
US9473262B2 (en) 2011-09-22 2016-10-18 Nec Corporation Optical communication apparatus, optical communication system, and path control method
CN102882607A (zh) * 2012-09-10 2013-01-16 青岛海信宽带多媒体技术有限公司 光模块及调节光模块接收光功率的方法
JP2017092763A (ja) * 2015-11-12 2017-05-25 日本電気株式会社 光送受信機およびループバック方法

Also Published As

Publication number Publication date
JPWO2009060522A1 (ja) 2011-03-17
US8396362B2 (en) 2013-03-12
US20100209113A1 (en) 2010-08-19

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