DE69024959D1 - Integrierte optische Kopfstruktur - Google Patents

Integrierte optische Kopfstruktur

Info

Publication number
DE69024959D1
DE69024959D1 DE69024959T DE69024959T DE69024959D1 DE 69024959 D1 DE69024959 D1 DE 69024959D1 DE 69024959 T DE69024959 T DE 69024959T DE 69024959 T DE69024959 T DE 69024959T DE 69024959 D1 DE69024959 D1 DE 69024959D1
Authority
DE
Germany
Prior art keywords
optical head
integrated optical
head structure
integrated
optical
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 - Fee Related
Application number
DE69024959T
Other languages
English (en)
Other versions
DE69024959T2 (de
Inventor
Fritz Dr Gfeller
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 DE69024959D1 publication Critical patent/DE69024959D1/de
Application granted granted Critical
Publication of DE69024959T2 publication Critical patent/DE69024959T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G11B7/0908—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 for focusing only
    • 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
    • G11B7/0908—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 for focusing only
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1384—Fibre optics
    • 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
    • G11B7/0908—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 for focusing only
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • G11B2007/0924—Skewed beams methods (using an angled beam, i.e. a beam which is reflected from the disc at an angle different from 90°)

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69024959T 1990-10-30 1990-10-30 Integrierte optische Kopfstruktur Expired - Fee Related DE69024959T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90810827A EP0483438B1 (de) 1990-10-30 1990-10-30 Integrierte optische Kopfstruktur

Publications (2)

Publication Number Publication Date
DE69024959D1 true DE69024959D1 (de) 1996-02-29
DE69024959T2 DE69024959T2 (de) 1996-11-14

Family

ID=8205963

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69024959T Expired - Fee Related DE69024959T2 (de) 1990-10-30 1990-10-30 Integrierte optische Kopfstruktur

Country Status (5)

Country Link
US (1) US5218584A (de)
EP (1) EP0483438B1 (de)
JP (1) JPH0743838B2 (de)
CA (1) CA2051601A1 (de)
DE (1) DE69024959T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05259584A (ja) * 1992-01-14 1993-10-08 Internatl Business Mach Corp <Ibm> 集積光デフレクタおよびその製造方法
CA2088701C (en) * 1992-02-05 1998-01-27 Yoshio Yoshida Optical information reproducing apparatus
JPH05290403A (ja) * 1992-04-08 1993-11-05 Matsushita Electric Ind Co Ltd 光ピックアップヘッド装置
US5390157A (en) * 1992-07-15 1995-02-14 Eastman Kodak Company Waveguide optical pick-up head using mach-zehnder interferometer wavefront sensor apparatus and method
JPH0738205A (ja) * 1993-07-20 1995-02-07 Mitsubishi Electric Corp 面発光レーザダイオードアレイ及びその駆動方法，光検出素子，光検出素子アレイ，空間光接続システム，並びに波長多重光通信システム
US5835458A (en) * 1994-09-09 1998-11-10 Gemfire Corporation Solid state optical data reader using an electric field for routing control
US5754520A (en) * 1994-12-22 1998-05-19 Landis & Gyr Technology Innovation Ag Optical data carriers and reading devices therefor
JP2699914B2 (ja) * 1995-03-09 1998-01-19 日本電気株式会社 記録再生方法および装置
JPH08249677A (ja) * 1995-03-09 1996-09-27 Nec Corp 光ディスクのトラックキック方法および装置
KR100243134B1 (ko) * 1997-08-30 2000-02-01 윤종용 기록 재생용 광픽업 장치
US6028835A (en) * 1998-11-03 2000-02-22 Thomas; Michael E. Integrated read/write head for ferroelectric optical storage
WO2005048174A1 (en) * 2003-11-10 2005-05-26 Technology Innovations, Llc Digital imaging assembly and methods thereof
US7031572B2 (en) * 2004-03-19 2006-04-18 Gruhlke Russell W Optical coupler
US7596072B2 (en) * 2004-12-22 2009-09-29 Seagate Technology Llc Optical recording using a waveguide structure and a phase change medium
US8515217B2 (en) * 2009-09-02 2013-08-20 Alcatel Lucent Vertical optically emitting photonic devices with electronic steering capability
US8024748B1 (en) 2009-09-09 2011-09-20 Western Digital Technologies, Inc. Method and system for coupling a laser with a slider in an energy assisted magnetic recording disk drive
US8582618B2 (en) * 2011-01-18 2013-11-12 Avago Technologies General Ip (Singapore) Pte. Ltd. Surface-emitting semiconductor laser device in which an edge-emitting laser is integrated with a diffractive or refractive lens on the semiconductor laser device
KR20150037863A (ko) * 2012-07-30 2015-04-08 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 소형 포토닉 플랫폼
US10209445B2 (en) 2012-07-30 2019-02-19 Hewlett Packard Enterprise Development Lp Method of fabricating a compact photonics platform
US9753219B2 (en) * 2015-02-13 2017-09-05 Clarkson University Optical coupler with forked grating structure
US10527786B2 (en) * 2017-08-31 2020-01-07 Lightwave Logic Inc. Polymer modulator and laser integrated on a common platform and method
US11262605B2 (en) * 2017-08-31 2022-03-01 Lightwave Logic Inc. Active region-less polymer modulator integrated on a common PIC platform and method
US10511146B2 (en) * 2017-11-14 2019-12-17 Lightwave Logic Inc. Guide transition device with digital grating deflectors and method
CN108231803B (zh) * 2017-12-26 2020-08-11 中国电子科技集团公司第五十五研究所 氮化硅光波导器件和石墨烯探测器集成芯片及其制作方法
US11194087B1 (en) * 2019-03-28 2021-12-07 Facebook Technologies, Llc Integrated waveguide coupler and light source

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61236037A (ja) * 1985-04-10 1986-10-21 Mitsubishi Electric Corp 光ヘッドの焦点誤差検出装置
JPH0622060B2 (ja) * 1985-05-24 1994-03-23 オムロン株式会社 光情報処理装置
JP2539406B2 (ja) * 1987-02-04 1996-10-02 株式会社日立製作所 固体光ピツクアツプ
EP0345232A3 (de) * 1988-05-31 1991-07-31 Nikon Corporation Integriertes optisches Gerät für magneto-optischen Aufnahme- und Wiedergabekopf
EP0360209A3 (de) * 1988-09-19 1992-08-19 Hitachi, Ltd. Optischer Kopf und optisches Datenverarbeitungsgerät
JP2753337B2 (ja) * 1989-07-26 1998-05-20 パイオニア株式会社 光学式情報読取り装置

Also Published As

Publication number Publication date
EP0483438B1 (de) 1996-01-17
DE69024959T2 (de) 1996-11-14
JPH04232623A (ja) 1992-08-20
JPH0743838B2 (ja) 1995-05-15
US5218584A (en) 1993-06-08
EP0483438A1 (de) 1992-05-06
CA2051601A1 (en) 1992-05-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee