DE68909710T2 - Optischer Bestandteil und Magnetfeldsensor mit übereinanderliegenden Einkristallelementen mit verschiedenen optischen Eigenschaften. - Google Patents

Optischer Bestandteil und Magnetfeldsensor mit übereinanderliegenden Einkristallelementen mit verschiedenen optischen Eigenschaften.

Info

Publication number
DE68909710T2
DE68909710T2 DE89307619T DE68909710T DE68909710T2 DE 68909710 T2 DE68909710 T2 DE 68909710T2 DE 89307619 T DE89307619 T DE 89307619T DE 68909710 T DE68909710 T DE 68909710T DE 68909710 T2 DE68909710 T2 DE 68909710T2
Authority
DE
Germany
Prior art keywords
magnetic field
single crystal
field sensor
crystal elements
optical component
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
DE89307619T
Other languages
English (en)
Other versions
DE68909710D1 (de
Inventor
Hiroaki Minamikazoku Apart Abe
Shuhei Toyoda
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of DE68909710D1 publication Critical patent/DE68909710D1/de
Application granted granted Critical
Publication of DE68909710T2 publication Critical patent/DE68909710T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
    • G01R33/0322—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect using the Faraday or Voigt effect
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect
DE89307619T 1988-07-28 1989-07-27 Optischer Bestandteil und Magnetfeldsensor mit übereinanderliegenden Einkristallelementen mit verschiedenen optischen Eigenschaften. Expired - Fee Related DE68909710T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63188951A JP2505542B2 (ja) 1988-07-28 1988-07-28 光学素子および光磁界検出センサ

Publications (2)

Publication Number Publication Date
DE68909710D1 DE68909710D1 (de) 1993-11-11
DE68909710T2 true DE68909710T2 (de) 1994-05-05

Family

ID=16232774

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89307619T Expired - Fee Related DE68909710T2 (de) 1988-07-28 1989-07-27 Optischer Bestandteil und Magnetfeldsensor mit übereinanderliegenden Einkristallelementen mit verschiedenen optischen Eigenschaften.

Country Status (4)

Country Link
US (1) US4984875A (de)
EP (1) EP0353057B1 (de)
JP (1) JP2505542B2 (de)
DE (1) DE68909710T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0786603B2 (ja) * 1988-08-24 1995-09-20 松下電器産業株式会社 光応用センサ
JPH085749B2 (ja) * 1989-03-30 1996-01-24 日本碍子株式会社 旋光性単結晶およびその製造方法
US5440414A (en) * 1990-02-02 1995-08-08 The United States Of America As Represented By The Secretary Of The Navy Adaptive polarization diversity detection scheme for coherent communications and interferometric fiber sensors
US5141110A (en) * 1990-02-09 1992-08-25 Hoover Universal, Inc. Method for sorting plastic articles
JPH0476476A (ja) * 1990-07-19 1992-03-11 Ngk Insulators Ltd 光磁界センサ
GB2261503A (en) * 1991-10-08 1993-05-19 Novacare Products Limited Monitoring a parameter of a magnetic or electromagnetic field
US5889609A (en) 1992-07-31 1999-03-30 Fujitsu Limited Optical attenuator
US5394420A (en) * 1994-01-27 1995-02-28 Trw Inc. Multiform crystal and apparatus for fabrication
JP3667827B2 (ja) * 1995-08-29 2005-07-06 富士通株式会社 ファラデー回転子
JP3739471B2 (ja) * 1996-03-01 2006-01-25 富士通株式会社 光可変減衰器
JP3773601B2 (ja) * 1996-09-18 2006-05-10 富士通株式会社 ファラデー回転子
JPH10161076A (ja) * 1996-11-29 1998-06-19 Fujitsu Ltd 磁気光学効果を利用した光デバイス
US6441955B1 (en) 1998-02-27 2002-08-27 Fujitsu Limited Light wavelength-multiplexing systems
US6496300B2 (en) 1998-02-27 2002-12-17 Fujitsu Limited Optical amplifier
US20050002032A1 (en) * 2001-11-06 2005-01-06 Wijntjes Geert Johannes Non-contact optical polarization angle encoder
WO2003040662A1 (en) * 2001-11-06 2003-05-15 Visidyne, Inc. Non-contact optical polarization angle encoder
US7253956B2 (en) * 2003-01-29 2007-08-07 Kyocera Corporation Optical isolator element, a method for producing such an element, and an optical isolator using such an element
EP1804066A4 (de) 2004-08-25 2008-12-31 Tokyo Electric Power Co Verfahren zur verringerung des temperaturabhängigen fehlers in einem fotostromsensor und fotostrom-sensoreinrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529885A (en) * 1967-09-01 1970-09-22 Sylvania Electric Prod Temperature compensated birefringent networks
US3540795A (en) * 1969-01-15 1970-11-17 Ibm Achromatic compensation apparatus using polarization rotation and birefringent elements
DE2908752A1 (de) * 1979-03-06 1980-09-18 Max Planck Gesellschaft Optisches transmissionsfilter
JPS56155100A (en) * 1980-05-02 1981-12-01 Ngk Insulators Ltd Production of single crystal of ferrite
JPS58140716A (ja) * 1982-02-15 1983-08-20 Sumitomo Electric Ind Ltd 磁界−光変換器
JPS58186705A (ja) * 1982-04-26 1983-10-31 Shimadzu Corp 旋光子
US4478872A (en) * 1983-04-04 1984-10-23 Litton Systems, Inc. Method of manufacturing a multilayer magneto-optic device
US4607916A (en) * 1984-03-19 1986-08-26 Gte Laboratories Incorporated Apparatus for controlling the rotation of the plane of linear polarization of linearly polarized radiant energy traversing an element of chromium chalcogenide spinel magnetic semiconductor with elliptically polarized radiant energy
US4762384A (en) * 1985-04-29 1988-08-09 American Telephone And Telegraph Company, At&T Bell Laboratories Optical systems with antireciprocal polarization rotators
JPS61250572A (ja) * 1985-04-30 1986-11-07 Mitsubishi Electric Corp 光応用電流・磁界センサ
JPH0766044B2 (ja) * 1985-06-29 1995-07-19 株式会社東芝 磁界センサ

Also Published As

Publication number Publication date
EP0353057B1 (de) 1993-10-06
EP0353057A2 (de) 1990-01-31
DE68909710D1 (de) 1993-11-11
EP0353057A3 (en) 1990-03-28
JP2505542B2 (ja) 1996-06-12
JPH0238880A (ja) 1990-02-08
US4984875A (en) 1991-01-15

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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