KR910003872A - 반도체 레이저 구동장치 - Google Patents

반도체 레이저 구동장치 Download PDF

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Publication number
KR910003872A
KR910003872A KR1019890010428A KR890010428A KR910003872A KR 910003872 A KR910003872 A KR 910003872A KR 1019890010428 A KR1019890010428 A KR 1019890010428A KR 890010428 A KR890010428 A KR 890010428A KR 910003872 A KR910003872 A KR 910003872A
Authority
KR
South Korea
Prior art keywords
semiconductor laser
laser device
current
supply means
recording
Prior art date
Application number
KR1019890010428A
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English (en)
Other versions
KR920010019B1 (ko
Inventor
누마다 도미유기
미와기 다가시
고지마 구니오
데구찌 도시히사
Original Assignee
쓰지 하루오
샤프 가부시끼가이샤
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 쓰지 하루오, 샤프 가부시끼가이샤 filed Critical 쓰지 하루오
Publication of KR910003872A publication Critical patent/KR910003872A/ko
Application granted granted Critical
Publication of KR920010019B1 publication Critical patent/KR920010019B1/ko

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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
    • G11B7/12—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0617—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium using memorised or pre-programmed laser characteristics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)

Abstract

내용 없음.

Description

반도체 레이저 구동장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 반도체 레이저 구동장치의 블록도.
제3도는 디지탈 데이터의 자동셋팅 첫째예시 흐름도.
제5도는 디지탈데이터의 자동셋팅 둘째예시의 흐름도.

Claims (5)

  1. 광디스크 기록 및 재생시스템의 반도체 레이저 장치에 구동 전류를 공급하기 위한 반도체 레이저 구동장치에 있어서 준위는 상기 레이저 장치로부터 방사되는 레이저빔에 의하여 방사되는 광디스크의 위치에 대응한 복수 준위의 하나에 반도체 레이저장치를 조절하도록 변경되며 상기 장치는 : 상기 레이저 장치에 상이한 준위를 가진 복수 기준 구동전류를 순차적으로 공급하는 전류 공급수단 : 상기 레이저 장치에 공급될 때 상기 레이저장치의 광출력준위를 검출하기 위한 모니터링 수단 : 검출된 광출력 준위에 의하여 여러 개의 최적 값을 셋팅하는 셋팅수단 : 레이저 빔에 의하여 방사되고 있는 광디스크의 위치에 따라서 상기 여러개의 최적 값의 하나를 선택하기위한 선택수단을 포함하는 반도체 레이저 구동장치.
  2. 제1항에 있어서 상기 전류 공급수단은 기록 및 소거 정보용 구동전류를 공급하는 반도체 레이저 장치.
  3. 제1항에 있어서 상기 전류 공급수단은 기록 정보용 상기 구동전류를 공급하기전에 세개 또는그 이상의 기준 구동전류를 공급하는 반도체 레이저 구동장치.
  4. 제3항에 있어서 상기 세개 또는 그 이상의 기준 구동전류를 각 준위가 점진적으로 증가되는 반도체 레이저장치.
  5. 제1항에 있어서 상기 전류 공급수단은 정보 기록용 상기 구동전류를 공급하기전에 두종류의 기준 구동전류를 공급하는 반도체 레이저장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890010428A 1988-07-22 1989-07-22 반도체 레이저 구동장치 KR920010019B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP?63-184088 1988-07-22
JP63184088A JP2624788B2 (ja) 1988-07-22 1988-07-22 半導体レーザ駆動装置
JP63-184088 1988-07-22

Publications (2)

Publication Number Publication Date
KR910003872A true KR910003872A (ko) 1991-02-28
KR920010019B1 KR920010019B1 (ko) 1992-11-10

Family

ID=16147190

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890010428A KR920010019B1 (ko) 1988-07-22 1989-07-22 반도체 레이저 구동장치

Country Status (5)

Country Link
US (1) US5008888A (ko)
EP (1) EP0352125B1 (ko)
JP (1) JP2624788B2 (ko)
KR (1) KR920010019B1 (ko)
DE (1) DE68924622T2 (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070495A (en) * 1989-04-12 1991-12-03 International Business Machines Corporation Write calibration for magnetooptic disk recorders
JP2905229B2 (ja) * 1989-09-26 1999-06-14 キヤノン株式会社 光ビーム駆動装置
US5185734A (en) * 1990-07-20 1993-02-09 International Business Machines Corporation Calibrating and power-protecting laser drive circuits
JPH04134737A (ja) * 1990-09-27 1992-05-08 Internatl Business Mach Corp <Ibm> 光ディスク駆動装置及び光量調整装置
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
JP2550447B2 (ja) * 1991-05-16 1996-11-06 富士通株式会社 レーザダイオードの制御方式
US5216659A (en) * 1991-09-11 1993-06-01 International Business Machines Laser power calibration by measuring laser drive current at out of focus and in focus conditions
US7286153B1 (en) 1991-10-11 2007-10-23 Hitachi, Ltd. Three-dimensional recording and reproducing apparatus
JP2835250B2 (ja) * 1992-08-10 1998-12-14 シャープ株式会社 光ディスク記録再生装置における光量制御装置
JPH09148630A (ja) * 1995-11-21 1997-06-06 Rohm Co Ltd 光量調整回路及びこれを用いた光応用装置
DE10064775A1 (de) 2000-12-22 2002-06-27 Thomson Brandt Gmbh Verfahren und Anordnung zum Regeln der Lichtleistung eines Abtaststrahls in einem Gerät zum Lesen oder zum Beschreiben optischer Aufzeichnungsträger
US6891866B2 (en) * 2003-01-10 2005-05-10 Agilent Technologies, Inc. Calibration of laser systems
US7304928B2 (en) * 2003-05-16 2007-12-04 Ricoh Company, Ltd. Laser power control technique and apparatus for recording and reproducing data in and from optical disk under laser power control
US7400662B2 (en) 2005-01-26 2008-07-15 Avago Technologies Fiber Ip Pte Ltd Calibration of laser systems
TW201027522A (en) * 2009-01-09 2010-07-16 Sunplus Technology Co Ltd Methods for on-line calibrating output power of optical pick-up

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685097A (en) * 1985-07-25 1987-08-04 Laser Magnetic Storage International Company Power control system for a semiconductor laser
US4747091A (en) * 1985-07-25 1988-05-24 Olympus Optical Co., Ltd. Semiconductor laser drive device
JP2531942B2 (ja) * 1986-04-14 1996-09-04 ティアツク株式会社 光学式デイスク記録装置
JPS62257640A (ja) * 1986-05-02 1987-11-10 Hitachi Ltd レ−ザ駆動装置

Also Published As

Publication number Publication date
EP0352125B1 (en) 1995-10-25
EP0352125A3 (en) 1991-04-24
KR920010019B1 (ko) 1992-11-10
EP0352125A2 (en) 1990-01-24
JPH0233737A (ja) 1990-02-02
JP2624788B2 (ja) 1997-06-25
DE68924622D1 (de) 1995-11-30
DE68924622T2 (de) 1996-06-20
US5008888A (en) 1991-04-16

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