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HK1077394A1 - Semiconductor laser unit and optical head device - Google Patents

Semiconductor laser unit and optical head device

Info

Publication number
HK1077394A1
HK1077394A1 HK05109204A HK05109204A HK1077394A1 HK 1077394 A1 HK1077394 A1 HK 1077394A1 HK 05109204 A HK05109204 A HK 05109204A HK 05109204 A HK05109204 A HK 05109204A HK 1077394 A1 HK1077394 A1 HK 1077394A1
Authority
HK
Hong Kong
Prior art keywords
semiconductor laser
optical head
head device
laser unit
unit
Prior art date
Application number
HK05109204A
Other languages
English (en)
Inventor
Masahisa Shinoda
Kenya Nakai
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of HK1077394A1 publication Critical patent/HK1077394A1/xx

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
    • G11B7/12—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
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • G11B7/082—Aligning the head or the light source relative to the record carrier otherwise than during transducing, e.g. adjusting tilt set screw during assembly of head
    • 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
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
    • 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
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/022—Mountings; Housings
    • H01S5/02208—Mountings; Housings characterised by the shape of the housings
    • H01S5/02212—Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis
    • 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
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/022—Mountings; Housings
    • H01S5/0225—Out-coupling of light
    • H01S5/02257—Out-coupling of light using windows, e.g. specially adapted for back-reflecting light to a detector inside the housing
    • 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
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/022—Mountings; Housings
    • H01S5/0235—Method for mounting laser chips
    • H01S5/02375—Positioning of the laser chips
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • H01S5/4031—Edge-emitting structures
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
HK05109204A 2002-05-28 2004-03-05 Semiconductor laser unit and optical head device HK1077394A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002153799A JP3546877B2 (ja) 2002-05-28 2002-05-28 半導体レーザ装置及び光ヘッド装置
HK04101660A HK1059009A1 (en) 2002-05-28 2004-03-05 Semiconductor laser unit and optical head device

Publications (1)

Publication Number Publication Date
HK1077394A1 true HK1077394A1 (en) 2006-02-10

Family

ID=29417169

Family Applications (2)

Application Number Title Priority Date Filing Date
HK04101660A HK1059009A1 (en) 2002-05-28 2004-03-05 Semiconductor laser unit and optical head device
HK05109204A HK1077394A1 (en) 2002-05-28 2004-03-05 Semiconductor laser unit and optical head device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK04101660A HK1059009A1 (en) 2002-05-28 2004-03-05 Semiconductor laser unit and optical head device

Country Status (6)

Country Link
US (2) US6912192B2 (zh)
EP (1) EP1367575B1 (zh)
JP (1) JP3546877B2 (zh)
CN (2) CN1203599C (zh)
DE (1) DE60216896T2 (zh)
HK (2) HK1059009A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003152260A (ja) * 2001-11-09 2003-05-23 Sharp Corp 半導体レーザ装置およびそれを用いた光ピックアップ装置、ならびに半導体レーザ装置の製造装置および製造方法
JP3546877B2 (ja) * 2002-05-28 2004-07-28 三菱電機株式会社 半導体レーザ装置及び光ヘッド装置
JP4706481B2 (ja) * 2003-12-25 2011-06-22 コニカミノルタオプト株式会社 光ピックアップ装置
US10088298B2 (en) 2015-09-04 2018-10-02 Kla-Tencor Corporation Method of improving lateral resolution for height sensor using differential detection technology for semiconductor inspection and metrology
CN111007484B (zh) * 2019-12-27 2023-08-25 联合微电子中心有限责任公司 一种单线激光雷达
CN112025088B (zh) * 2020-08-06 2022-04-15 武汉华工激光工程有限责任公司 一种激光光束像散补偿方法及激光加工系统
CN114400500B (zh) * 2021-12-28 2023-12-22 中国科学院光电技术研究所 一种激光外调制横模发生装置

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* Cited by examiner, † Cited by third party
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US6657931B1 (en) * 1959-02-02 2003-12-02 Sony Corporation Optical disc drive for performing read/write operations on optical disks
JP4126799B2 (ja) * 1999-03-03 2008-07-30 ソニー株式会社 光ディスク装置
CA1204199A (en) * 1982-02-19 1986-05-06 Shigeo Kubota Optical apparatus
JPS61184735A (ja) 1985-02-12 1986-08-18 Nec Corp マルチビ−ム型光ピツクアツプ装置
US4942584A (en) * 1988-06-22 1990-07-17 Morihiro Karaki Semiconductor laser apparatus driving system
JP2585761B2 (ja) 1988-11-15 1997-02-26 キヤノン株式会社 光ヘッド
JPH06274931A (ja) * 1993-01-22 1994-09-30 Ricoh Co Ltd 光ピックアップおよび光ピックアップにおけるビーム整形機能を有するカップリングレンズ
JP3778316B2 (ja) * 1997-05-22 2006-05-24 パイオニア株式会社 光ピックアップ装置
KR20000009844A (ko) * 1998-07-29 2000-02-15 사까이 히로시 광픽업
JP2000348369A (ja) * 1999-04-02 2000-12-15 Ricoh Co Ltd 光ピックアップ
JP2002025103A (ja) * 2000-07-07 2002-01-25 Toshiba Corp 光学ヘッド装置
JP2001176110A (ja) * 1999-12-13 2001-06-29 Alps Electric Co Ltd 光ピックアップ装置
JP2001184698A (ja) * 1999-12-22 2001-07-06 Pioneer Electronic Corp 光ピックアップ装置
JP3689296B2 (ja) * 2000-01-24 2005-08-31 パイオニア株式会社 光ピックアップ装置
JP2001237501A (ja) 2000-02-23 2001-08-31 Rohm Co Ltd 半導体レーザ装置の光軸アラインメント方法および半導体レーザ装置
JP3859416B2 (ja) * 2000-02-29 2006-12-20 株式会社日立製作所 対物レンズ、これを用いた光ヘッドおよび光ディスク装置
JP2001298238A (ja) 2000-04-14 2001-10-26 Toshiba Corp 光集積ユニット及び光ピックアップ装置
JP2001331955A (ja) * 2000-05-22 2001-11-30 Matsushita Electric Ind Co Ltd 光学ヘッド制御装置
JP2001338432A (ja) * 2000-05-25 2001-12-07 Pioneer Electronic Corp 光ピックアップ装置
JP2002008258A (ja) * 2000-06-21 2002-01-11 Pioneer Electronic Corp 光ピックアップ装置
JP2002025096A (ja) * 2000-07-07 2002-01-25 Matsushita Electric Ind Co Ltd 半導体光源、光ピックアップヘッド装置及び情報記録再生装置
CN1287185C (zh) * 2000-10-06 2006-11-29 宾得株式会社 用于光学头的物镜、光学头以及光盘驱动器
JP2002163837A (ja) * 2000-11-27 2002-06-07 Pioneer Electronic Corp 光ピックアップ装置及びレーザダイオードチップ
JP2003163405A (ja) * 2001-11-26 2003-06-06 Sony Corp ２波長半導体レーザ素子およびそれに用いられる非点補正板ならびにその配置方法
JP4205886B2 (ja) * 2002-04-02 2009-01-07 Ｈｏｙａ株式会社 光ヘッド用対物レンズ、これを用いた光ヘッドおよび光ディスク装置
JP3546877B2 (ja) * 2002-05-28 2004-07-28 三菱電機株式会社 半導体レーザ装置及び光ヘッド装置

Also Published As

Publication number Publication date
US6912192B2 (en) 2005-06-28
DE60216896D1 (de) 2007-02-01
EP1367575A2 (en) 2003-12-03
CN100375173C (zh) 2008-03-12
JP3546877B2 (ja) 2004-07-28
CN1463060A (zh) 2003-12-24
DE60216896T2 (de) 2007-07-05
US7266072B2 (en) 2007-09-04
US20050094693A1 (en) 2005-05-05
CN1624783A (zh) 2005-06-08
EP1367575A3 (en) 2004-12-22
EP1367575B1 (en) 2006-12-20
JP2003347682A (ja) 2003-12-05
US20030231670A1 (en) 2003-12-18
CN1203599C (zh) 2005-05-25
HK1059009A1 (en) 2004-06-11

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Legal Events

Date Code Title Description
PE Patent expired

Effective date: 20221124