WO2004068705A8 - 前置増幅回路及びクロック切替え回路及びそれを用いた光受信器 - Google Patents

前置増幅回路及びクロック切替え回路及びそれを用いた光受信器

Info

Publication number
WO2004068705A8
WO2004068705A8 PCT/JP2004/000647 JP2004000647W WO2004068705A8 WO 2004068705 A8 WO2004068705 A8 WO 2004068705A8 JP 2004000647 W JP2004000647 W JP 2004000647W WO 2004068705 A8 WO2004068705 A8 WO 2004068705A8
Authority
WO
WIPO (PCT)
Prior art keywords
control signal
signal
preamplifier
optical receiver
control
Prior art date
Application number
PCT/JP2004/000647
Other languages
English (en)
French (fr)
Other versions
WO2004068705A1 (ja
Inventor
Masaki Kunii
Hirokazu Osada
Original Assignee
Fujitsu Ltd
Masaki Kunii
Hirokazu Osada
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, Masaki Kunii, Hirokazu Osada filed Critical Fujitsu Ltd
Priority to JP2005504696A priority Critical patent/JP4137120B2/ja
Publication of WO2004068705A1 publication Critical patent/WO2004068705A1/ja
Publication of WO2004068705A8 publication Critical patent/WO2004068705A8/ja
Priority to US11/043,078 priority patent/US7389056B2/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3084—Automatic control in amplifiers having semiconductor devices in receivers or transmitters for electromagnetic waves other than radiowaves, e.g. lightwaves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Optical Communication System (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Dc Digital Transmission (AREA)

Abstract

本発明は、制御信号に応じて帰還抵抗値を可変して増幅を行う帯域幅を設定する前置増幅器と、前記前置増幅器の出力信号の帯域を検出して前記制御信号を生成する制御信号生成手段と、前記制御信号の補正信号を生成する補正信号生成手段を有し、前記制御信号を前記補正信号で補正して前記帰還抵抗値の可変調整を行うよう構成することにより、光入力信号の一定時間内の立ち上がり及び立ち下がりの数が予め決められた範囲より小さくなった場合にも、制御電圧を正しく生成でき正常な帯域制御を行うことができ、入力信号パターン依存性の影響なく帯域幅を自動的に調整した光受信器を実現することができ、コストの低減をはかることができる。
PCT/JP2004/000647 2003-01-27 2004-01-26 前置増幅回路及びクロック切替え回路及びそれを用いた光受信器 WO2004068705A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005504696A JP4137120B2 (ja) 2003-01-27 2004-01-26 前置増幅回路及びクロック切替え回路及びそれを用いた光受信器
US11/043,078 US7389056B2 (en) 2003-01-27 2005-01-27 Preamplifier circuit, clock switching circuit, and optical receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2003/000734 WO2004068702A1 (ja) 2003-01-27 2003-01-27 前置増幅回路及びそれを用いた光受信器
JPPCT/JP03/00734 2003-01-27

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/043,078 Continuation US7389056B2 (en) 2003-01-27 2005-01-27 Preamplifier circuit, clock switching circuit, and optical receiver

Publications (2)

Publication Number Publication Date
WO2004068705A1 WO2004068705A1 (ja) 2004-08-12
WO2004068705A8 true WO2004068705A8 (ja) 2005-01-20

Family

ID=32800793

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2003/000734 WO2004068702A1 (ja) 2003-01-27 2003-01-27 前置増幅回路及びそれを用いた光受信器
PCT/JP2004/000647 WO2004068705A1 (ja) 2003-01-27 2004-01-26 前置増幅回路及びクロック切替え回路及びそれを用いた光受信器

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/000734 WO2004068702A1 (ja) 2003-01-27 2003-01-27 前置増幅回路及びそれを用いた光受信器

Country Status (3)

Country Link
US (1) US7389056B2 (ja)
JP (1) JP4137120B2 (ja)
WO (2) WO2004068702A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100601048B1 (ko) * 2004-04-22 2006-07-14 한국전자통신연구원 버스트 모드 패킷의 수신기 및 그 패킷의 수신 방법
US20060087378A1 (en) * 2004-10-26 2006-04-27 Hiroshi Hayakawa Preamplifier circuit having a variable feedback resistance
US7692486B2 (en) * 2007-10-05 2010-04-06 Qualcomm, Incorporated Configurable feedback for an amplifier
US8369713B2 (en) * 2010-03-18 2013-02-05 Nippon Telegraph And Telephone Corporation Bit-rate discrimination method and its apparatus

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2685476B2 (ja) * 1988-03-07 1997-12-03 旭化成工業株式会社 受信モジュール
JPH01253305A (ja) * 1988-04-01 1989-10-09 Toshiba Corp 光受信器
JPH03195107A (ja) 1989-12-22 1991-08-26 Fujitsu Ltd 自動帰還抵抗調整機能付き前置増幅器
JPH03270308A (ja) 1990-03-19 1991-12-02 Fujitsu Ltd 自動利得制御回路
JPH03270504A (ja) * 1990-03-20 1991-12-02 Fujitsu Ltd 光受信器の等価増幅回路
JP3257033B2 (ja) 1992-06-03 2002-02-18 松下電器産業株式会社 自動利得制御増幅装置
JPH08223228A (ja) * 1994-03-17 1996-08-30 Fujitsu Ltd 等化増幅器及びこれを用いた受信機並びにプリアンプ
JP3436631B2 (ja) * 1996-02-22 2003-08-11 富士通株式会社 光送受信回路
JP2861996B1 (ja) 1998-01-30 1999-02-24 日立電線株式会社 光波長合分波器
JPH11275030A (ja) * 1998-03-19 1999-10-08 Fujitsu Ltd 光受信装置
JP2000131541A (ja) 1998-10-27 2000-05-12 Hitachi Cable Ltd 光波長合分波器
JP2001211035A (ja) * 2000-01-26 2001-08-03 Mitsubishi Electric Corp プリアンプおよび光受信器
WO2001067597A1 (fr) * 2000-03-06 2001-09-13 Fujitsu Limited Preamplificateur
JP2002135214A (ja) * 2000-10-19 2002-05-10 Mitsubishi Electric Corp 光受信器
US7072590B2 (en) * 2001-03-26 2006-07-04 Avago Technologies General Ip Pte. Ltd. Fiber optic receiver with an adjustable bandwidth post-amplifier

Also Published As

Publication number Publication date
JP4137120B2 (ja) 2008-08-20
WO2004068702A1 (ja) 2004-08-12
US20050128007A1 (en) 2005-06-16
JPWO2004068705A1 (ja) 2006-05-25
WO2004068705A1 (ja) 2004-08-12
US7389056B2 (en) 2008-06-17

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