JPS56161520A - Optical variable attenuator - Google Patents

Optical variable attenuator

Info

Publication number
JPS56161520A
JPS56161520A JP6523780A JP6523780A JPS56161520A JP S56161520 A JPS56161520 A JP S56161520A JP 6523780 A JP6523780 A JP 6523780A JP 6523780 A JP6523780 A JP 6523780A JP S56161520 A JPS56161520 A JP S56161520A
Authority
JP
Japan
Prior art keywords
analyzer
cell
variable attenuator
optical variable
polarizer
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.)
Pending
Application number
JP6523780A
Other languages
English (en)
Inventor
Yasuhiro Tanaka
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6523780A priority Critical patent/JPS56161520A/ja
Publication of JPS56161520A publication Critical patent/JPS56161520A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/092—Operation of the cell; Circuit arrangements
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/48—Variable attenuator

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
JP6523780A 1980-05-19 1980-05-19 Optical variable attenuator Pending JPS56161520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6523780A JPS56161520A (en) 1980-05-19 1980-05-19 Optical variable attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6523780A JPS56161520A (en) 1980-05-19 1980-05-19 Optical variable attenuator

Publications (1)

Publication Number Publication Date
JPS56161520A true JPS56161520A (en) 1981-12-11

Family

ID=13281099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6523780A Pending JPS56161520A (en) 1980-05-19 1980-05-19 Optical variable attenuator

Country Status (1)

Country Link
JP (1) JPS56161520A (ja)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132722A (ja) * 1982-02-03 1983-08-08 Hoya Corp 光アイソレ−タ装置
JPS59174817A (ja) * 1983-03-24 1984-10-03 Hoya Corp 光アイソレ−タ装置
JPS60146215A (ja) * 1984-01-11 1985-08-01 Agency Of Ind Science & Technol 光分岐結合器
JPS62105119A (ja) * 1985-10-31 1987-05-15 Nissin Electric Co Ltd フアラデ−回転スイツチ
JPH02118514A (ja) * 1989-05-27 1990-05-02 Ko Taketomi 磁性流体の屈折率、磁場依存性を利用する光双安定方法及び装置
EP0717302A3 (en) * 1994-12-15 1997-08-13 Anritsu Corp External stabilization of the output power of a light source with tunable wavelength
US6407836B1 (en) 1998-01-22 2002-06-18 Fujitsu Limited Optical attenuator and system, optical amplifier, and terminal device each having the optical attenuator
JP2003035891A (ja) * 2001-07-23 2003-02-07 Anritsu Corp 旋光装置
WO2012027906A1 (zh) * 2010-09-03 2012-03-08 青岛海信信芯科技有限公司 旋光器以及基于旋光器的激光散斑抑制装置与方法
CN105938973A (zh) * 2016-06-21 2016-09-14 沈阳理工大学 一种新型高精度激光能量/功率衰减器
JP2021071605A (ja) * 2019-10-31 2021-05-06 株式会社東芝 偏光制御装置、赤外線撮像装置、光波目標検出装置及び偏光制御方法

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526172B2 (ja) * 1982-02-03 1993-04-15 Hoya Corp
JPS58132722A (ja) * 1982-02-03 1983-08-08 Hoya Corp 光アイソレ−タ装置
JPS59174817A (ja) * 1983-03-24 1984-10-03 Hoya Corp 光アイソレ−タ装置
JPS6232454B2 (ja) * 1983-03-24 1987-07-15 Hoya Corp
JPS60146215A (ja) * 1984-01-11 1985-08-01 Agency Of Ind Science & Technol 光分岐結合器
JPS62105119A (ja) * 1985-10-31 1987-05-15 Nissin Electric Co Ltd フアラデ−回転スイツチ
JPH02118514A (ja) * 1989-05-27 1990-05-02 Ko Taketomi 磁性流体の屈折率、磁場依存性を利用する光双安定方法及び装置
EP0717302A3 (en) * 1994-12-15 1997-08-13 Anritsu Corp External stabilization of the output power of a light source with tunable wavelength
US6407836B1 (en) 1998-01-22 2002-06-18 Fujitsu Limited Optical attenuator and system, optical amplifier, and terminal device each having the optical attenuator
US6507422B1 (en) 1998-01-22 2003-01-14 Fujitsu Limited Optical attenuator and system, optical amplifier, and terminal device each having the optical attenuator
JP2003035891A (ja) * 2001-07-23 2003-02-07 Anritsu Corp 旋光装置
WO2012027906A1 (zh) * 2010-09-03 2012-03-08 青岛海信信芯科技有限公司 旋光器以及基于旋光器的激光散斑抑制装置与方法
CN103052899A (zh) * 2010-09-03 2013-04-17 青岛海信电器股份有限公司 旋光器以及基于旋光器的激光散斑抑制装置与方法
CN105938973A (zh) * 2016-06-21 2016-09-14 沈阳理工大学 一种新型高精度激光能量/功率衰减器
JP2021071605A (ja) * 2019-10-31 2021-05-06 株式会社東芝 偏光制御装置、赤外線撮像装置、光波目標検出装置及び偏光制御方法

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