DE69126226D1 - Magnetooptisches Gerät - Google Patents

Magnetooptisches Gerät

Info

Publication number
DE69126226D1
DE69126226D1 DE69126226T DE69126226T DE69126226D1 DE 69126226 D1 DE69126226 D1 DE 69126226D1 DE 69126226 T DE69126226 T DE 69126226T DE 69126226 T DE69126226 T DE 69126226T DE 69126226 D1 DE69126226 D1 DE 69126226D1
Authority
DE
Germany
Prior art keywords
magneto
optical device
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
DE69126226T
Other languages
English (en)
Other versions
DE69126226T2 (de
Inventor
Masamichi Yamanishi
Hitoshi Oda
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE69126226D1 publication Critical patent/DE69126226D1/de
Application granted granted Critical
Publication of DE69126226T2 publication Critical patent/DE69126226T2/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
    • 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
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • G11B11/10589—Details
    • 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
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/005—Arrangements for writing information into, or reading information out from, a digital store with combined beam-and individual cell access
DE1991626226 1990-02-20 1991-02-19 Magnetooptisches Gerät Expired - Fee Related DE69126226T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2039265A JP2822257B2 (ja) 1990-02-20 1990-02-20 電界変調型磁気光学デバイス及びその駆動方法、光変調器、光変調方法、光アイソレータ及びその調整方法

Publications (2)

Publication Number Publication Date
DE69126226D1 true DE69126226D1 (de) 1997-07-03
DE69126226T2 DE69126226T2 (de) 1997-11-20

Family

ID=12548310

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1991626226 Expired - Fee Related DE69126226T2 (de) 1990-02-20 1991-02-19 Magnetooptisches Gerät

Country Status (5)

Country Link
EP (1) EP0447815B1 (de)
JP (1) JP2822257B2 (de)
AU (1) AU646427B2 (de)
CA (1) CA2036759C (de)
DE (1) DE69126226T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003014800A (ja) * 2001-07-05 2003-01-15 Nec Tokin Corp 電界センシング装置
JP4868311B2 (ja) * 2006-12-25 2012-02-01 並木精密宝石株式会社 短波長光用ファラデー回転子及びそのファラデー回転子を備えた光アイソレータ
KR101600353B1 (ko) 2009-05-22 2016-03-21 삼성전자주식회사 광학 메모리 소자 및 이를 이용한 정보 기록/재생 방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877298A (en) * 1987-02-26 1989-10-31 Hoechst Celanese Corporation Thin film waveguide electrooptic modulator
JPS6488518A (en) * 1987-09-30 1989-04-03 Hitachi Ltd Semiconductor device for controlling beam of light
GB2215072A (en) * 1988-02-12 1989-09-13 Philips Electronic Associated A method of modulating an optical beam
AU605029B2 (en) * 1988-03-25 1991-01-03 Telstra Corporation Limited Magneto-optic device
US4889402A (en) * 1988-08-31 1989-12-26 American Telephone And Telegraph Company, At&T Bell Laboratories Electro-optic polarization modulation in multi-electrode waveguides
JP2739736B2 (ja) * 1988-09-16 1998-04-15 カシオ計算機株式会社 磁性体装置

Also Published As

Publication number Publication date
AU7120791A (en) 1991-08-22
AU646427B2 (en) 1994-02-24
EP0447815A2 (de) 1991-09-25
JP2822257B2 (ja) 1998-11-11
EP0447815A3 (en) 1993-01-20
DE69126226T2 (de) 1997-11-20
EP0447815B1 (de) 1997-05-28
JPH03242618A (ja) 1991-10-29
CA2036759C (en) 1994-07-26
CA2036759A1 (en) 1991-08-21

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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