DE69018714D1 - Halbleiterlasersteuerungskreis. - Google Patents

Halbleiterlasersteuerungskreis.

Info

Publication number: DE69018714D1
Authority: DE; Germany
Prior art keywords: control circuit; semiconductor laser; laser control; semiconductor; circuit
Prior art date: 1989-06-28
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

DE69018714T

Other languages

English (en)

Other versions

DE69018714T2 (de

Inventor

Tomiyuki Numata

Kunio Kojima

Toshihisa Deguchi

Shigeo Terashima

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.)

Sharp Corp

Original Assignee

Sharp 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.)

1989-06-28

Filing date

1990-06-27

Publication date

1995-05-24

1990-06-27 Application filed by Sharp Corp filed Critical Sharp Corp

1995-05-24 Application granted granted Critical

1995-05-24 Publication of DE69018714D1 publication Critical patent/DE69018714D1/de

1995-10-05 Publication of DE69018714T2 publication Critical patent/DE69018714T2/de

2010-06-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation

Landscapes

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

DE69018714T 1989-06-28 1990-06-27 Halbleiterlasersteuerungskreis. Expired - Lifetime DE69018714T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP1165577A JPH0330130A (ja)	1989-06-28	1989-06-28	半導体レーザ駆動回路

Publications (2)

Publication Number	Publication Date
DE69018714D1 true DE69018714D1 (de)	1995-05-24
DE69018714T2 DE69018714T2 (de)	1995-10-05

Family

ID=15815001

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69018714T Expired - Lifetime DE69018714T2 (de)	1989-06-28	1990-06-27	Halbleiterlasersteuerungskreis.

Country Status (5)

Country	Link
US (1)	US5170389A (de)
EP (1)	EP0405952B1 (de)
JP (1)	JPH0330130A (de)
CA (1)	CA2019936C (de)
DE (1)	DE69018714T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0652018U (ja) *	1992-12-25	1994-07-15	太陽誘電株式会社	光情報記録再生装置
US5422900A (en) *	1994-04-28	1995-06-06	Eastman Kodak Company	Integrated laser module
JPH09509791A (ja) *	1994-12-23	1997-09-30	フィリップスエレクトロニクスネムローゼフェンノートシャップ	レーザ電力供給回路及びそのようなレーザ電力供給回路を具えた光学記録と読取との双方又はいずれか一方用装置
JPH1075163A (ja) *	1996-08-29	1998-03-17	Sony Corp	スイッチ回路
JPH11213425A (ja) *	1998-01-22	1999-08-06	Olympus Optical Co Ltd	光ディスク装置
CN1127185C (zh) *	1999-05-21	2003-11-05	北京大学	半导体激光器及电吸收调制器的高码率驱动器
JP2001216645A (ja) *	1999-11-22	2001-08-10	Sanyo Electric Co Ltd	制御装置
JP2001216647A (ja) *	1999-11-22	2001-08-10	Sanyo Electric Co Ltd	制御装置
JP3594547B2 (ja)	1999-11-22	2004-12-02	三洋電機株式会社	データ記録装置
JP2001216646A (ja)	1999-11-22	2001-08-10	Sanyo Electric Co Ltd	データ記録装置
JP3545330B2 (ja)	1999-12-27	2004-07-21	三洋電機株式会社	記録制御装置
JP2001250327A (ja) *	1999-12-27	2001-09-14	Sanyo Electric Co Ltd	データ記録システム
JP3754288B2 (ja) *	1999-12-27	2006-03-08	三洋電機株式会社	制御装置
JP2001250329A (ja) *	1999-12-27	2001-09-14	Sanyo Electric Co Ltd	データ記録装置
TW473705B (en) *	2000-01-28	2002-01-21	Via Tech Inc	Method and device to prevent overcurrent of pickup head
KR100464403B1 (ko) *	2001-07-20	2005-01-03	삼성전자주식회사	광디스크 기록/재생 장치의 이상 상태 검출 장치
KR20050085909A (ko) *	2002-12-27	2005-08-29	오스람 옵토 세미컨덕터스 게엠베하	에러 발생시 레이저 다이오드 바를 브리징하기 위한 병렬접속 다이오드를 구비한 레이저 다이오드 바

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS56144590A (en) *	1980-04-13	1981-11-10	Matsushita Electric Ind Co Ltd	Driving device for semiconductor laser
JPS5894143A (ja) *	1981-12-01	1983-06-04	Matsushita Electric Ind Co Ltd	光学的記録再生装置
JPS58118042A (ja) *	1982-01-06	1983-07-13	Hitachi Ltd	光デイスク装置
JPS58189849A (ja) *	1982-04-30	1983-11-05	Toshiba Corp	半導体レ−ザの調整装置
JPS6190539A (ja) *	1984-10-09	1986-05-08	Olympus Optical Co Ltd	光出力安定化装置
JP2563250B2 (ja) *	1985-06-17	1996-12-11	松下電器産業株式会社	半導体レ−ザ駆動回路
US4685097A (en) *	1985-07-25	1987-08-04	Laser Magnetic Storage International Company	Power control system for a semiconductor laser
JPS62102576A (ja) *	1985-10-29	1987-05-13	Toshiba Corp	レ−ザダイオ−ド駆動回路のリセツト回路
US4843604A (en) *	1985-10-16	1989-06-27	Sharp Kabushiki Kaisha	Beam controller for magneto-optical disc memory system
JP2615553B2 (ja) *	1985-11-14	1997-05-28	富士通株式会社	レーザ制御装置
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

1989
- 1989-06-28 JP JP1165577A patent/JPH0330130A/ja active Pending
1990
- 1990-06-15 US US07/538,340 patent/US5170389A/en not_active Expired - Lifetime
- 1990-06-27 EP EP90307046A patent/EP0405952B1/de not_active Expired - Lifetime
- 1990-06-27 CA CA002019936A patent/CA2019936C/en not_active Expired - Fee Related
- 1990-06-27 DE DE69018714T patent/DE69018714T2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0405952B1 (de)	1995-04-19
US5170389A (en)	1992-12-08
CA2019936A1 (en)	1990-12-28
DE69018714T2 (de)	1995-10-05
JPH0330130A (ja)	1991-02-08
EP0405952A2 (de)	1991-01-02
EP0405952A3 (en)	1992-03-04
CA2019936C (en)	1994-08-23

Publication	Publication Date	Title
DE58906492D1 (de)	1994-02-03	Halbleiterschaltung.
DE69018108D1 (de)	1995-05-04	Servo-Stromkreis.
DE68915673D1 (de)	1994-07-07	Halbleiterlaser-Vorrichtung.
DE68918884D1 (de)	1994-11-24	Halbleiterlaser-Vorrichtung.
NL191164C (nl)	1995-02-16	Aanstuurschakeling.
DE68909747D1 (de)	1993-11-11	Abstimmbarer Halbleiterlaser.
DE69023565D1 (de)	1995-12-21	Integrierte Halbleiterschaltung.
DE68908646D1 (de)	1993-09-30	Halbleiterlaser.
DE69012194D1 (de)	1994-10-13	Integrierter Halbleiterschaltkreis.
DE68921088D1 (de)	1995-03-23	Integrierte Halbleiterschaltung.
DE69018714D1 (de)	1995-05-24	Halbleiterlasersteuerungskreis.
DE68912512D1 (de)	1994-03-03	Halbleiterlaser-Vorrichtung.
DE68912852D1 (de)	1994-03-17	Halbleiterlaser.
DE69017601D1 (de)	1995-04-13	Schaltungsanordnung.
DE69008464D1 (de)	1994-06-01	Schaltungsanordnung.
DE68912739D1 (de)	1994-03-10	Befehlschaltung.
DE69018732D1 (de)	1995-05-24	Halbleiterlaser.
DE69011038D1 (de)	1994-09-01	Integrierte Halbleiterschaltung.
DE68910492D1 (de)	1993-12-09	Halbleiterlaservorrichtung.
DE68916093D1 (de)	1994-07-21	Integrierte Schaltung.
DE69005132D1 (de)	1994-01-27	Halbleiterlaser.
DE69009266D1 (de)	1994-07-07	Halbleiterlaser-Vorrichtung.
DE58904573D1 (de)	1993-07-08	Abstimmbarer halbleiterlaser.
DE69018587D1 (de)	1995-05-18	Steuerschaltung.
DE69021151D1 (de)	1995-08-31	Halbleiterlaser-Vorrichtung.

Legal Events

Date	Code	Title	Description
1996-05-15	8364	No opposition during term of opposition
1997-03-20	8328	Change in the person/name/address of the agent	Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN