KR900702516A - 레이저 다이오드 구동장치 - Google Patents

레이저 다이오드 구동장치

Info

Publication number
KR900702516A
KR900702516A KR1019900700553A KR900700553A KR900702516A KR 900702516 A KR900702516 A KR 900702516A KR 1019900700553 A KR1019900700553 A KR 1019900700553A KR 900700553 A KR900700553 A KR 900700553A KR 900702516 A KR900702516 A KR 900702516A
Authority
KR
South Korea
Prior art keywords
laser diode
drive
modulator
comparator
output
Prior art date
Application number
KR1019900700553A
Other languages
English (en)
Other versions
KR0140695B1 (en
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 filed Critical
Publication of KR900702516A publication Critical patent/KR900702516A/ko
Application granted granted Critical
Publication of KR0140695B1 publication Critical patent/KR0140695B1/ko

Links

Classifications

    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Head (AREA)
  • Led Devices (AREA)
KR90700553A 1988-07-18 1990-03-15 Laser diode driving apparatus KR0140695B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63177084A JPH0227533A (ja) 1988-07-18 1988-07-18 レーザダイオード駆動装置
PCT/JP1989/000703 WO1990001206A1 (en) 1988-07-18 1989-07-12 Laser diode driving apparatus

Publications (2)

Publication Number Publication Date
KR900702516A true KR900702516A (ko) 1990-12-07
KR0140695B1 KR0140695B1 (en) 1998-06-01

Family

ID=16024848

Family Applications (1)

Application Number Title Priority Date Filing Date
KR90700553A KR0140695B1 (en) 1988-07-18 1990-03-15 Laser diode driving apparatus

Country Status (7)

Country Link
US (1) US5835476A (ko)
EP (1) EP0381768B1 (ko)
JP (1) JPH0227533A (ko)
KR (1) KR0140695B1 (ko)
AT (1) ATE111628T1 (ko)
DE (1) DE68918262T2 (ko)
WO (1) WO1990001206A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100520038B1 (ko) * 1999-01-14 2005-10-10 엘지전자 주식회사 광 픽업의 레이저 다이오드 제어장치
KR101351118B1 (ko) * 2006-07-18 2014-01-14 록히드 마틴 코포레이션 초음파 레이저 테스트용 광섬유 레이저

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136569A (en) * 1990-09-28 1992-08-04 International Business Machines Corporation Optical disk recorder for diverse media types and having a predetermined initialization or start-up procedure
JP3368908B2 (ja) * 1991-07-24 2003-01-20 松下電器産業株式会社 光磁気ディスク記録再生装置
JPH10247329A (ja) * 1997-03-04 1998-09-14 Toshiba Corp 半導体装置及びこれを含む光ピックアップ光学系ユニット及びこれを含む光ピックアップ装置
KR100494309B1 (ko) * 1997-06-10 2005-08-17 디지털 비디오 시스템스 인코퍼레이션 레이저다이오드자동이상유무확인장치
JPH11144255A (ja) * 1997-11-04 1999-05-28 Sony Corp 光情報再生装置及び光情報再生方法
JP2002100044A (ja) * 2000-09-25 2002-04-05 Sony Corp 光記録装置およびそれにおけるレーザパワー制御方法
US7346086B2 (en) * 2004-04-02 2008-03-18 Videojet Technologies, Inc. Apparatus for monitoring the operating status of a laser

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687239A (en) * 1979-12-18 1981-07-15 Matsushita Electric Ind Co Ltd Optical recording and reproducing device
JPS60247836A (ja) * 1984-05-22 1985-12-07 Nippon Gakki Seizo Kk 光学式情報再生装置
JPH0821173B2 (ja) * 1984-07-27 1996-03-04 松下電器産業株式会社 半導体レ−ザ駆動回路
JPS6190539A (ja) * 1984-10-09 1986-05-08 Olympus Optical Co Ltd 光出力安定化装置
JPH0743841B2 (ja) * 1985-06-25 1995-05-15 シャープ株式会社 半導体レ−ザ駆動方法
US4843604A (en) * 1985-10-16 1989-06-27 Sharp Kabushiki Kaisha Beam controller for magneto-optical disc memory system
JP2557830B2 (ja) * 1985-10-16 1996-11-27 シャープ株式会社 光学的記録再生装置における光量制御装置
JPS62286292A (ja) * 1986-06-04 1987-12-12 Matsushita Electric Ind Co Ltd レ−ザダイオ−ド駆動回路
US4811329A (en) * 1986-06-06 1989-03-07 Mitsubishi Denki Kabushiki Kaisha Optical head with laser having particular source of driving current
JPH07111782B2 (ja) * 1986-08-13 1995-11-29 ソニー株式会社 光デイスクの記録再生装置
NL8602303A (nl) * 1986-09-12 1988-04-05 Philips Nv Werkwijze voor het in pulsmode aansturen van een halfgeleiderlaser, aanstuurinrichting voor een halfgeleiderlaser en laserschrijfapparaat voorzien van een dergelijke aanstuurinrichting.
JPS63205819A (ja) * 1987-02-20 1988-08-25 Pioneer Electronic Corp 光学式情報記録装置
JPS643818A (en) * 1987-06-25 1989-01-09 Teac Corp Optical recording and reproducing device
JPH06289248A (ja) * 1993-03-31 1994-10-18 Sumitomo Cement Co Ltd 光素子用光ファイバ固定補助具、および固定方法
JP3007242B2 (ja) * 1993-06-04 2000-02-07 有限会社アスプ 雪庇発生防止装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100520038B1 (ko) * 1999-01-14 2005-10-10 엘지전자 주식회사 광 픽업의 레이저 다이오드 제어장치
KR101351118B1 (ko) * 2006-07-18 2014-01-14 록히드 마틴 코포레이션 초음파 레이저 테스트용 광섬유 레이저

Also Published As

Publication number Publication date
WO1990001206A1 (en) 1990-02-08
KR0140695B1 (en) 1998-06-01
JPH0227533A (ja) 1990-01-30
EP0381768A1 (en) 1990-08-16
DE68918262D1 (de) 1994-10-20
EP0381768B1 (en) 1994-09-14
US5835476A (en) 1998-11-10
ATE111628T1 (de) 1994-09-15
DE68918262T2 (de) 1995-05-18
EP0381768A4 (en) 1992-01-02

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030221

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee