WO2008111186A1 - 光検出回路、光伝送装置および光検出方法 - Google Patents

光検出回路、光伝送装置および光検出方法 Download PDF

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Publication number
WO2008111186A1
WO2008111186A1 PCT/JP2007/055043 JP2007055043W WO2008111186A1 WO 2008111186 A1 WO2008111186 A1 WO 2008111186A1 JP 2007055043 W JP2007055043 W JP 2007055043W WO 2008111186 A1 WO2008111186 A1 WO 2008111186A1
Authority
WO
WIPO (PCT)
Prior art keywords
light detecting
voltage
range amplifier
digitizing
selector
Prior art date
Application number
PCT/JP2007/055043
Other languages
English (en)
French (fr)
Inventor
Kazukiyo Ogawa
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 JP2009503827A priority Critical patent/JPWO2008111186A1/ja
Priority to PCT/JP2007/055043 priority patent/WO2008111186A1/ja
Publication of WO2008111186A1 publication Critical patent/WO2008111186A1/ja
Priority to US12/585,351 priority patent/US20100166437A1/en

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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J2001/4406—Plural ranges in circuit, e.g. switchable ranges; Adjusting sensitivity selecting gain values
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/08—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Communication System (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Amplifiers (AREA)

Abstract

　光検出回路６０は、入力された光の光レベルに応じた電圧を発生させるＰＤ受信部６１０と、ＰＤ受信部６１０によって生成された電圧を増幅させるＨｉｇｈレンジ増幅部６３１と、ＰＤ受信部６１０によって生成された電圧をさらに高い増幅率で増幅させるＬｏｗレンジ増幅部６３２と、Ｈｉｇｈレンジ増幅部６３１およびＬｏｗレンジ増幅部６３２の出力電圧の電圧レベルをデジタル値化するＡＤ変換部６４０と、ＡＤ変換部６４０の変換結果を閾値と比較して、Ｈｉｇｈレンジ増幅部６３１の出力電圧の電圧レベルがデジタル値化された値と、Ｌｏｗレンジ増幅部６３２の出力電圧の電圧レベルがデジタル値化された値のいずれを出力するかを選択する選択部６５１と、選択部６５１の選択結果に応じた補正値を補正テーブル６５５ｂから取得し、選択部６５１によって選択された値に加算する出力補正部６５３とを備える。
PCT/JP2007/055043 2007-03-14 2007-03-14 光検出回路、光伝送装置および光検出方法 WO2008111186A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009503827A JPWO2008111186A1 (ja) 2007-03-14 2007-03-14 光検出回路、光伝送装置および光検出方法
PCT/JP2007/055043 WO2008111186A1 (ja) 2007-03-14 2007-03-14 光検出回路、光伝送装置および光検出方法
US12/585,351 US20100166437A1 (en) 2007-03-14 2009-09-11 Optical detecting circuit, optical transmitting apparatus, and optical detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/055043 WO2008111186A1 (ja) 2007-03-14 2007-03-14 光検出回路、光伝送装置および光検出方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/585,351 Continuation US20100166437A1 (en) 2007-03-14 2009-09-11 Optical detecting circuit, optical transmitting apparatus, and optical detecting method

Publications (1)

Publication Number Publication Date
WO2008111186A1 true WO2008111186A1 (ja) 2008-09-18

Family

ID=39759137

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/055043 WO2008111186A1 (ja) 2007-03-14 2007-03-14 光検出回路、光伝送装置および光検出方法

Country Status (3)

Country Link
US (1) US20100166437A1 (ja)
JP (1) JPWO2008111186A1 (ja)
WO (1) WO2008111186A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103281121A (zh) * 2013-06-24 2013-09-04 青岛海信宽带多媒体技术有限公司 监控光模块接收光功率的方法及系统
JP2016014535A (ja) * 2014-06-30 2016-01-28 日本信号株式会社 測距装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI541490B (zh) * 2014-06-20 2016-07-11 國立清華大學 高動態範圍感測裝置及其感測方法
CN105095877B (zh) * 2015-08-12 2018-09-04 京东方科技集团股份有限公司 有机发光二极管显示基板及其光反射表面结构识别方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53147884U (ja) * 1977-04-27 1978-11-21
JPH04223229A (ja) * 1990-12-25 1992-08-13 Fujikura Ltd 光パワーメーター及びそれを用いた光カプラ製造装置
JPH0563572A (ja) * 1991-09-04 1993-03-12 Hitachi Ltd 自動ゲイン切替機能付信号処理装置
JPH06140993A (ja) * 1992-10-23 1994-05-20 Fujitsu Ltd 光受信器
JPH08102651A (ja) * 1994-10-03 1996-04-16 Hitachi Ltd バースト光受信回路
JPH08298337A (ja) * 1995-04-27 1996-11-12 Fujitsu Ltd 光出力モニタ回路
JPH11211565A (ja) * 1998-01-20 1999-08-06 Honda Motor Co Ltd 信号処理機能付き光センサ
JP2003249895A (ja) * 2002-02-22 2003-09-05 Sumitomo Electric Ind Ltd 対数変換回路、光検出回路および光増幅器
JP2006322888A (ja) * 2005-05-20 2006-11-30 Denso Corp 検出装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53147884U (ja) * 1977-04-27 1978-11-21
JPH04223229A (ja) * 1990-12-25 1992-08-13 Fujikura Ltd 光パワーメーター及びそれを用いた光カプラ製造装置
JPH0563572A (ja) * 1991-09-04 1993-03-12 Hitachi Ltd 自動ゲイン切替機能付信号処理装置
JPH06140993A (ja) * 1992-10-23 1994-05-20 Fujitsu Ltd 光受信器
JPH08102651A (ja) * 1994-10-03 1996-04-16 Hitachi Ltd バースト光受信回路
JPH08298337A (ja) * 1995-04-27 1996-11-12 Fujitsu Ltd 光出力モニタ回路
JPH11211565A (ja) * 1998-01-20 1999-08-06 Honda Motor Co Ltd 信号処理機能付き光センサ
JP2003249895A (ja) * 2002-02-22 2003-09-05 Sumitomo Electric Ind Ltd 対数変換回路、光検出回路および光増幅器
JP2006322888A (ja) * 2005-05-20 2006-11-30 Denso Corp 検出装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103281121A (zh) * 2013-06-24 2013-09-04 青岛海信宽带多媒体技术有限公司 监控光模块接收光功率的方法及系统
JP2016014535A (ja) * 2014-06-30 2016-01-28 日本信号株式会社 測距装置

Also Published As

Publication number Publication date
JPWO2008111186A1 (ja) 2010-06-24
US20100166437A1 (en) 2010-07-01

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