DE69917763D1 - System zur optischen datenspeicherung, das polarisationserhaltende optische fasern verwendet - Google Patents

System zur optischen datenspeicherung, das polarisationserhaltende optische fasern verwendet

Info

Publication number
DE69917763D1
DE69917763D1 DE69917763T DE69917763T DE69917763D1 DE 69917763 D1 DE69917763 D1 DE 69917763D1 DE 69917763 T DE69917763 T DE 69917763T DE 69917763 T DE69917763 T DE 69917763T DE 69917763 D1 DE69917763 D1 DE 69917763D1
Authority
DE
Germany
Prior art keywords
polarization
data storage
storage system
resisting
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
DE69917763T
Other languages
English (en)
Other versions
DE69917763T2 (de
Inventor
P Wilde
Alexander Tselikov
Yongwei Zhang
R Gray
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of DE69917763D1 publication Critical patent/DE69917763D1/de
Application granted granted Critical
Publication of DE69917763T2 publication Critical patent/DE69917763T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4201Packages, e.g. shape, construction, internal or external details
    • G02B6/4216Packages, e.g. shape, construction, internal or external details incorporating polarisation-maintaining fibres
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/255Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/262Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532Heads
    • G11B11/10541Heads for reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532Heads
    • G11B11/10541Heads for reproducing
    • G11B11/10543Heads for reproducing using optical beam of radiation
    • G11B11/10545Heads for reproducing using optical beam of radiation interacting directly with the magnetisation on the record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125Optical 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
    • G11B7/126Circuits, methods or arrangements for laser control or stabilisation
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125Optical 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
    • G11B7/127Lasers; Multiple laser arrays
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1384Fibre optics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25Arrangements specific to fibre transmission
    • H04B10/2507Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2572Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to forms of polarisation-dependent distortion other than PMD
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4201Packages, e.g. shape, construction, internal or external details
    • G02B6/4204Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4207Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055Disposition or mounting of transducers relative to record carriers
    • G11B11/10552Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
    • G11B11/10554Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base the transducers being disposed on the same side of the carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055Disposition or mounting of transducers relative to record carriers
    • G11B11/1058Flying heads
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • G11B2007/13727Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Head (AREA)
  • Optical Couplings Of Light Guides (AREA)
DE69917763T 1998-03-30 1999-03-30 System zur optischen datenspeicherung, das polarisationserhaltende optische fasern verwendet Expired - Fee Related DE69917763T2 (de)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US7990398P 1998-03-30 1998-03-30
US79903P 1998-03-30
US8819298P 1998-06-05 1998-06-05
US88192P 1998-06-05
US10839898P 1998-11-13 1998-11-13
US108398P 1998-11-13
US11147098P 1998-12-09 1998-12-09
US111470P 1998-12-09
US28389699A 1999-03-30 1999-03-30
PCT/US1999/007055 WO1999050844A1 (en) 1998-03-30 1999-03-30 Optical data storage system utilizing polarization maintaining optical fiber
US283896 1999-03-30

Publications (2)

Publication Number Publication Date
DE69917763D1 true DE69917763D1 (de) 2004-07-08
DE69917763T2 DE69917763T2 (de) 2005-05-25

Family

ID=27536222

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69917763T Expired - Fee Related DE69917763T2 (de) 1998-03-30 1999-03-30 System zur optischen datenspeicherung, das polarisationserhaltende optische fasern verwendet

Country Status (7)

Country Link
US (1) US6538974B2 (de)
EP (1) EP1066631B1 (de)
JP (1) JP2003522362A (de)
KR (1) KR100381936B1 (de)
CN (1) CN100383869C (de)
DE (1) DE69917763T2 (de)
WO (1) WO1999050844A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6889528B2 (en) * 2001-10-22 2005-05-10 Council Of Scientific & Industrial Research Process of making rare earth doped optical fiber
US6714354B2 (en) * 2002-08-14 2004-03-30 Corning Incorporated Grin lenses, devices and methods of manufacture
KR20040067417A (ko) * 2003-01-23 2004-07-30 삼성전자주식회사 광픽업 액츄에이터
US7345840B2 (en) * 2004-05-26 2008-03-18 Seagate Technology Llc Light delivery technique for heat assisted magnetic recording head
US7483229B2 (en) * 2004-12-08 2009-01-27 Seagate Technology Llc Optical coupling to data recording transducer
US7778503B2 (en) * 2006-03-31 2010-08-17 Nokia Corporation Electronic device having optical data connection of movable housing parts
US8248905B2 (en) * 2010-10-15 2012-08-21 General Electric Company Method of parallel bit-wise holographic data storage source using a parallel light source
JP5708009B2 (ja) 2011-02-17 2015-04-30 セイコーエプソン株式会社 光モジュールおよび電子機器
CN102967583B (zh) * 2012-11-11 2015-07-22 华中科技大学 一种用于测量液相气体折射率的测量仪及方法
KR101566587B1 (ko) * 2013-11-05 2015-11-05 포항공과대학교 산학협력단 베셀 빔 생성용 광 섬유 및 이를 사용하는 광학 이미징 장치
DE102015105446A1 (de) * 2014-04-24 2015-10-29 Gtran Inc. Wellenlängen-Multiplexvorrichtung (WDM) und De-Multiplexvorrichtung (WDDM)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1132258A (en) * 1980-05-12 1982-09-21 Herman W. Willemsen Scanning head for an optical disc system
JPS58189848A (ja) * 1982-04-30 1983-11-05 Nippon Telegr & Teleph Corp <Ntt> フアイバ形光学ヘツド
JPS6279213U (de) * 1985-11-01 1987-05-21
JPH01169746A (ja) * 1987-12-23 1989-07-05 Mitsubishi Electric Corp 光デイスク用ピツクアツプ装置
JPH07118105B2 (ja) * 1989-06-02 1995-12-18 日立電線株式会社 光フアイバ形光磁気ヘッド
US5619488A (en) * 1991-09-07 1997-04-08 Fuji Xerox Co., Ltd. Information recording device
US5164956A (en) * 1991-10-21 1992-11-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Multiperiod-grating surface-emitting lasers
JPH09293258A (ja) * 1996-04-23 1997-11-11 Sharp Corp 光学式情報再生装置
US6034938A (en) * 1996-07-30 2000-03-07 Seagate Technology, Inc. Data storage system having an optical processing flying head
WO1998009280A1 (en) * 1996-08-27 1998-03-05 Quinta Corporation Single-frequency laser source for optical data storage system
JP2762997B2 (ja) * 1997-01-24 1998-06-11 株式会社日立製作所 光学的情報処理装置

Also Published As

Publication number Publication date
US20020172134A1 (en) 2002-11-21
KR20010042354A (ko) 2001-05-25
KR100381936B1 (ko) 2003-04-26
JP2003522362A (ja) 2003-07-22
WO1999050844A1 (en) 1999-10-07
CN1295710A (zh) 2001-05-16
DE69917763T2 (de) 2005-05-25
CN100383869C (zh) 2008-04-23
EP1066631A1 (de) 2001-01-10
EP1066631B1 (de) 2004-06-02
US6538974B2 (en) 2003-03-25

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8339 Ceased/non-payment of the annual fee