WO2009031218A1 - 光伝送装置 - Google Patents

光伝送装置 Download PDF

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Publication number
WO2009031218A1
WO2009031218A1 PCT/JP2007/067368 JP2007067368W WO2009031218A1 WO 2009031218 A1 WO2009031218 A1 WO 2009031218A1 JP 2007067368 W JP2007067368 W JP 2007067368W WO 2009031218 A1 WO2009031218 A1 WO 2009031218A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
disconnection
signal
electric
section
Prior art date
Application number
PCT/JP2007/067368
Other languages
English (en)
French (fr)
Inventor
Togo Fukushi
Kiyotoshi Noheji
Original Assignee
Fujitsu Limited
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 Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/067368 priority Critical patent/WO2009031218A1/ja
Publication of WO2009031218A1 publication Critical patent/WO2009031218A1/ja

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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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems

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

Abstract

　光サージを抑圧し、光伝送品質の向上を図る。 　断検出部（１１ａ）は、電気信号の断を検出した場合には断検出信号を出力し、断の復旧を検出した場合には断検出信号の出力を停止する。ダミー信号生成部（１１ｂ）は、断検出時に、ダミー信号を生成する。電気／光変換部（１２）は、電気信号処理部（１１）からの出力の電気／光変換を行って、光信号を出力する。ダミー信号生成部（１１ｂ）は、断発生時の無入力期間の間、ダミー信号を出力し、光増幅媒体（１３ａ）には、電気／光変換された光ダミー信号が挿入される。励起光発出制御部（１３ｂ）は、断検出信号の受信を認識した場合は、励起光のパワーを低減して、光ダミー信号の出力光電力を低下させ、断検出信号の未受信を認識した場合は、励起光のパワーを増加して、断が生じる前の光増幅媒体（１３ａ）で増幅されていた光信号の出力光電力に戻すように、励起光の発出制御を行う。
PCT/JP2007/067368 2007-09-06 2007-09-06 光伝送装置 WO2009031218A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/067368 WO2009031218A1 (ja) 2007-09-06 2007-09-06 光伝送装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/067368 WO2009031218A1 (ja) 2007-09-06 2007-09-06 光伝送装置

Publications (1)

Publication Number Publication Date
WO2009031218A1 true WO2009031218A1 (ja) 2009-03-12

Family

ID=40428541

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/067368 WO2009031218A1 (ja) 2007-09-06 2007-09-06 光伝送装置

Country Status (1)

Country Link
WO (1) WO2009031218A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011222582A (ja) * 2010-04-05 2011-11-04 Hamamatsu Photonics Kk 光増幅装置
TWI451071B (zh) * 2011-06-23 2014-09-01 Asia Optical Co Inc Optical power detector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07240551A (ja) * 1994-03-02 1995-09-12 Fujitsu Ltd 光増幅伝送装置におけるサージ光発生防止方式
JPH08256111A (ja) * 1995-03-16 1996-10-01 Fujitsu Ltd 光送信装置及び光受信装置
JPH09200145A (ja) * 1996-01-18 1997-07-31 Nec Corp 光送信回路および光直接増幅回路
JPH11313349A (ja) * 1998-04-30 1999-11-09 Fujitsu Ltd 光クロスコネクト制御方式
JP2005192077A (ja) * 2003-12-26 2005-07-14 Mitsubishi Electric Corp 光伝送装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07240551A (ja) * 1994-03-02 1995-09-12 Fujitsu Ltd 光増幅伝送装置におけるサージ光発生防止方式
JPH08256111A (ja) * 1995-03-16 1996-10-01 Fujitsu Ltd 光送信装置及び光受信装置
JPH09200145A (ja) * 1996-01-18 1997-07-31 Nec Corp 光送信回路および光直接増幅回路
JPH11313349A (ja) * 1998-04-30 1999-11-09 Fujitsu Ltd 光クロスコネクト制御方式
JP2005192077A (ja) * 2003-12-26 2005-07-14 Mitsubishi Electric Corp 光伝送装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011222582A (ja) * 2010-04-05 2011-11-04 Hamamatsu Photonics Kk 光増幅装置
TWI451071B (zh) * 2011-06-23 2014-09-01 Asia Optical Co Inc Optical power detector

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