DE69907891D1 - Optisches speichersystem mit niedrigem rauschen mit einer polarisationsoptischen verzögerungsleitung - Google Patents

Optisches speichersystem mit niedrigem rauschen mit einer polarisationsoptischen verzögerungsleitung

Info

Publication number
DE69907891D1
DE69907891D1 DE69907891T DE69907891T DE69907891D1 DE 69907891 D1 DE69907891 D1 DE 69907891D1 DE 69907891 T DE69907891 T DE 69907891T DE 69907891 T DE69907891 T DE 69907891T DE 69907891 D1 DE69907891 D1 DE 69907891D1
Authority
DE
Germany
Prior art keywords
storage system
low noise
delay line
polarization
optical storage
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
DE69907891T
Other languages
English (en)
Other versions
DE69907891T2 (de
Inventor
P Wilde
Alexander Tselikov
Yongwei Zhang
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 DE69907891D1 publication Critical patent/DE69907891D1/de
Application granted granted Critical
Publication of DE69907891T2 publication Critical patent/DE69907891T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4216—Packages, e.g. shape, construction, internal or external details incorporating polarisation-maintaining fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording 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
    • G11B11/10—Recording 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
    • G11B11/105—Recording 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
    • G11B11/10532—Heads
    • G11B11/10541—Heads for reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording 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
    • G11B11/10—Recording 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
    • G11B11/105—Recording 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
    • G11B11/10532—Heads
    • G11B11/10541—Heads for reproducing
    • G11B11/10543—Heads for reproducing using optical beam of radiation
    • G11B11/10545—Heads for reproducing using optical beam of radiation interacting directly with the magnetisation on the record carrier
    • 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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • 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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • 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
    • G11B7/1372—Lenses
    • 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
    • G11B7/12—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
    • G11B7/1395—Beam splitters or combiners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2572—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to forms of polarisation-dependent distortion other than PMD
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4207—Packages, 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE69907891T 1998-03-30 1999-03-26 Optisches speichersystem mit niedrigem rauschen mit einer polarisationsoptischen verzögerungsleitung Expired - Fee Related DE69907891T2 (de)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
US7990398P 1998-03-30 1998-03-30
US79903P 1998-03-30
US8122798P 1998-04-09 1998-04-09
US81227P 1998-04-09
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
US09/276,082 US6609841B1 (en) 1998-03-30 1999-03-25 Low noise optical storage system based on an optical polarimetric delay line
US276082 1999-03-25
PCT/US1999/006449 WO1999050841A1 (en) 1998-03-30 1999-03-26 Low noise optical storage system based on an optical polarimetric delay line

Publications (2)

Publication Number Publication Date
DE69907891D1 true DE69907891D1 (de) 2003-06-18
DE69907891T2 DE69907891T2 (de) 2004-05-13

Family

ID=27557204

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69907891T Expired - Fee Related DE69907891T2 (de) 1998-03-30 1999-03-26 Optisches speichersystem mit niedrigem rauschen mit einer polarisationsoptischen verzögerungsleitung

Country Status (7)

Country Link
US (1) US6609841B1 (de)
EP (1) EP1066629B1 (de)
JP (1) JP2002510115A (de)
KR (1) KR100351194B1 (de)
CN (1) CN1159712C (de)
DE (1) DE69907891T2 (de)
WO (1) WO1999050841A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7203423B1 (en) * 1999-09-01 2007-04-10 At&T Corp. Methods and systems for polarization mode dispersion compensation
US7333728B1 (en) * 1999-09-01 2008-02-19 At&T Corp. Methods and systems for polarization mode dispersion compensation
US6674972B1 (en) * 1999-09-01 2004-01-06 At&T Corp. Methods and systems for polarization mode dispersion compensation
US6915031B2 (en) * 2002-10-22 2005-07-05 Finisar Corporation Switch using electrooptic polarization splitter and combiner
CN101167273B (zh) * 2005-04-29 2012-07-04 澳大利亚国家Ict有限公司 用于带内光学性能监测的方法及设备
US7995675B2 (en) * 2008-02-14 2011-08-09 International Business Machines Corporation Apparatus and method to communicate information within a data storage library
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
US8774635B2 (en) 2011-06-30 2014-07-08 The Johns Hopkins University Fiber-optic automatic gain control systems and methods
CN103379069B (zh) * 2012-04-13 2016-10-05 菲尼萨公司 无热dqpsk和/或dpsk解调器
GB201313751D0 (en) 2013-08-01 2013-09-18 Renishaw Plc Rotation Detection Apparatus
CN114627902B (zh) * 2022-03-15 2023-08-04 浙江大学 一种单脉冲全无机多维光存储方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900247A (en) * 1974-02-26 1975-08-19 Northern Electric Co Optical modulator having compensation for thermal and space charge effects
JPS61234311A (ja) 1985-04-10 1986-10-18 Hamamatsu Photonics Kk 円柱形レ−ザジャイロ
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
US5495366A (en) * 1993-05-03 1996-02-27 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method for eliminating polarization sensitivity in transducers
US5434501A (en) * 1994-04-29 1995-07-18 The United States Of America As Represented By The Secretary Of The Navy Polarization insensitive current and magnetic field optic sensor
US5822100A (en) * 1996-06-26 1998-10-13 Mci Communications Corporation Method and system for equalizing PMD using incremental delay switching
US5850375A (en) 1996-07-30 1998-12-15 Seagate Technology, Inc. System and method using optical fibers in a data storage and retrieval 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
US5930414A (en) * 1997-09-16 1999-07-27 Lucent Technologies Inc. Method and apparatus for automatic compensation of first-order polarization mode dispersion (PMD)
US6271952B1 (en) * 1998-08-18 2001-08-07 Nortel Networks Limited Polarization mode dispersion compensation

Also Published As

Publication number Publication date
CN1295708A (zh) 2001-05-16
WO1999050841A1 (en) 1999-10-07
KR100351194B1 (ko) 2002-08-30
EP1066629B1 (de) 2003-05-14
US6609841B1 (en) 2003-08-26
JP2002510115A (ja) 2002-04-02
CN1159712C (zh) 2004-07-28
DE69907891T2 (de) 2004-05-13
EP1066629A1 (de) 2001-01-10
KR20010042353A (ko) 2001-05-25

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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