JPH0549173B2 - - Google Patents

Info

Publication number
JPH0549173B2
JPH0549173B2 JP63148435A JP14843588A JPH0549173B2 JP H0549173 B2 JPH0549173 B2 JP H0549173B2 JP 63148435 A JP63148435 A JP 63148435A JP 14843588 A JP14843588 A JP 14843588A JP H0549173 B2 JPH0549173 B2 JP H0549173B2
Authority
JP
Japan
Prior art keywords
photodetector
circuit
electrical
photodiodes
anode
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
Application number
JP63148435A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6469924A (en
Inventor
Aachii Madoritsudo Benii
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS6469924A publication Critical patent/JPS6469924A/ja
Publication of JPH0549173B2 publication Critical patent/JPH0549173B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • 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
    • H03F3/087—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light with IC amplifier blocks

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optical Head (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Amplifiers (AREA)
JP63148435A 1987-08-26 1988-06-17 Photo detector Granted JPS6469924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/090,198 US4785167A (en) 1987-08-26 1987-08-26 Photodetector having cascaded photoelements

Publications (2)

Publication Number Publication Date
JPS6469924A JPS6469924A (en) 1989-03-15
JPH0549173B2 true JPH0549173B2 (en, 2012) 1993-07-23

Family

ID=22221738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63148435A Granted JPS6469924A (en) 1987-08-26 1988-06-17 Photo detector

Country Status (5)

Country Link
US (1) US4785167A (en, 2012)
EP (1) EP0304560B1 (en, 2012)
JP (1) JPS6469924A (en, 2012)
CA (1) CA1289217C (en, 2012)
DE (1) DE3883666T2 (en, 2012)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2576579B2 (ja) * 1988-04-11 1997-01-29 日本電気株式会社 情報信号検出器
US5050144A (en) * 1989-12-11 1991-09-17 International Business Machines Corporation Recording intensity modulated signals and polarization-modulated optical signals in the same area of a storage member
US5272692A (en) * 1989-12-11 1993-12-21 International Business Machines Corporation Data storage member having areas in which intensity-modulated signals are overlaid with magneto-optically recorded signals
US5105415A (en) * 1989-12-11 1992-04-14 International Business Machines Corporation Detecting magnetooptic and intensity-modulated optical signals with the same detector
JP2705326B2 (ja) * 1991-02-19 1998-01-28 日本電気株式会社 光磁気ヘッド装置
JP2988795B2 (ja) * 1992-05-29 1999-12-13 シャープ株式会社 受光増幅装置
US5265085A (en) * 1992-06-15 1993-11-23 International Business Machines Simultaneous MO and ROM optical disk signal detection
KR100406477B1 (ko) * 1995-01-31 2004-03-24 소니 가부시끼 가이샤 광신호검출회로
US7283695B2 (en) * 2004-08-31 2007-10-16 Georgia Tech Research Corporation Optical interconnects in microelectronics based on azimuthally asymmetric long-period fiber grating couplers
US9621279B2 (en) 2013-03-27 2017-04-11 Nec Corporation Optical receiver circuit

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877279A (en) * 1930-05-20 1932-09-13 Westinghouse Electric & Mfg Co Photosensitive device
DE1264513C2 (de) * 1963-11-29 1973-01-25 Texas Instruments Inc Bezugspotentialfreier gleichstromdifferenzverstaerker
US4066973A (en) * 1976-09-15 1978-01-03 Contraves-Goerz Corporation Analog signal isolator
JPS6042886B2 (ja) * 1978-07-13 1985-09-25 双葉電子工業株式会社 測長装置
US4536866A (en) * 1978-11-30 1985-08-20 Videonics Of Hawaii, Inc. Information retrieval system and apparatus
FR2497378B1 (fr) * 1980-12-29 1985-06-28 Thomson Csf Dispositif compensateur de desequilibre d'un miroir de renvoi appartenant a un systeme optique d'eclairement d'un support d'information
JPS5841447A (ja) * 1981-09-04 1983-03-10 Hitachi Ltd 光スポット制御信号検出方法
NL8200208A (nl) * 1982-01-21 1983-08-16 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
DE3367134D1 (en) * 1982-05-31 1986-11-27 Hitachi Ltd Servo circuit for a signal reproducing apparatus
JPS58220252A (ja) * 1982-06-16 1983-12-21 Hitachi Ltd 光学式ピツクアツプのトラツキング誤差信号検出回路
JPS5940378A (ja) * 1982-08-31 1984-03-06 Toshiba Corp デイスク装置
JPS5968844A (ja) * 1982-10-14 1984-04-18 Matsushita Electric Ind Co Ltd 光学的可逆記録再生装置
JPS6112208A (ja) * 1984-06-28 1986-01-20 井関農機株式会社 播種機
US4578786A (en) * 1984-07-06 1986-03-25 Storage Technology Partners Ii Track pitch calibration system for use in optical storage devices
JPS6159223A (ja) * 1984-08-30 1986-03-26 Canon Inc 測光回路
EP0207517B1 (en) * 1985-07-05 1991-02-27 Mitsubishi Denki Kabushiki Kaisha Optical pickup apparatus
JPS6259821A (ja) * 1985-09-10 1987-03-16 Mitsubishi Electric Corp 光検出回路
JPS6290967A (ja) * 1985-10-17 1987-04-25 Nissan Motor Co Ltd 受光用半導体集積回路
EP0228620B1 (en) * 1985-12-10 1991-06-05 Nec Corporation Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors
US4659930A (en) * 1985-12-27 1987-04-21 Honeywell Inc. Radiation hard visible light readout circuit

Also Published As

Publication number Publication date
JPS6469924A (en) 1989-03-15
DE3883666T2 (de) 1994-04-21
EP0304560A2 (en) 1989-03-01
EP0304560A3 (en) 1990-07-25
EP0304560B1 (en) 1993-09-01
CA1289217C (en) 1991-09-17
US4785167A (en) 1988-11-15
DE3883666D1 (de) 1993-10-07

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