JPS6425029A - Measuring device of verdet's constant - Google Patents

Measuring device of verdet's constant

Info

Publication number
JPS6425029A
JPS6425029A JP18155687A JP18155687A JPS6425029A JP S6425029 A JPS6425029 A JP S6425029A JP 18155687 A JP18155687 A JP 18155687A JP 18155687 A JP18155687 A JP 18155687A JP S6425029 A JPS6425029 A JP S6425029A
Authority
JP
Japan
Prior art keywords
light
verdet
constant
magnetic field
strength
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
JP18155687A
Other languages
Japanese (ja)
Inventor
Kunio Tanabe
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP18155687A priority Critical patent/JPS6425029A/en
Publication of JPS6425029A publication Critical patent/JPS6425029A/en
Pending legal-status Critical Current

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  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE:To measure the Verdet's constant with high accuracy, by employing a super- conductive coil for the coil wound around a material to be measured so as to generate magnetic field in a direction to which the linearly polarized light proceeds. CONSTITUTION:Light from the light source is inputted to a polarizer 1 to be a linearly polarized light which is then incident upon an object 2 to be measured. The object 2 is wound by a superconductive coil 5, so that the magnetic field is generated in a rectilinear direction of light. Therefore, the linearly polarized light is rotated in its polarization direction and enters a polarizer 4 the strength of which is observed by an optical detector 7. The strength of light is changed based upon the rotation of the shaft of the polarizer 4. Therefore, by adjusting the strength of light to be maximum, the rotational angles at that time can be obtained. Since the length of light passing through the object 2 and the strength of the magnetic field generated by the coil 5 can be measured in advance, the Verdet's constant can be calculated by a predetermined formula. the super-conductive coil is employed for generating the magnetic field, and accordingly a large magnetic field can be generated. Therefore, even if the Verdet's constant is small, or the object 2 is short, the rotational angles can be made large, whereby the Verdet's constant can be obtained with ease.
JP18155687A 1987-07-21 1987-07-21 Measuring device of verdet's constant Pending JPS6425029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18155687A JPS6425029A (en) 1987-07-21 1987-07-21 Measuring device of verdet's constant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18155687A JPS6425029A (en) 1987-07-21 1987-07-21 Measuring device of verdet's constant

Publications (1)

Publication Number Publication Date
JPS6425029A true JPS6425029A (en) 1989-01-27

Family

ID=16102850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18155687A Pending JPS6425029A (en) 1987-07-21 1987-07-21 Measuring device of verdet's constant

Country Status (1)

Country Link
JP (1) JPS6425029A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007522521A (en) * 2004-02-12 2007-08-09 パノラマ ラブズ ピーティーワイ リミテッド Magneto-optic device display
CN103076155A (en) * 2012-12-31 2013-05-01 北京航空航天大学 Optical fiber Verdet constant measurement system on basis of double optical paths
CN103292976A (en) * 2013-05-16 2013-09-11 北京航空航天大学 Interferometry-based optical fiber Verdet constant measuring system
CN104931232A (en) * 2015-06-12 2015-09-23 上海大学 Test device and method of Verdet constant of doped optical fiber
CN106546411A (en) * 2016-10-19 2017-03-29 北京航空航天大学 Polarization maintaining optical fibre Verdet constant measuring apparatus and method based on Mach Zehnder and Michelson interferometers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007522521A (en) * 2004-02-12 2007-08-09 パノラマ ラブズ ピーティーワイ リミテッド Magneto-optic device display
CN103076155A (en) * 2012-12-31 2013-05-01 北京航空航天大学 Optical fiber Verdet constant measurement system on basis of double optical paths
CN103292976A (en) * 2013-05-16 2013-09-11 北京航空航天大学 Interferometry-based optical fiber Verdet constant measuring system
CN104931232A (en) * 2015-06-12 2015-09-23 上海大学 Test device and method of Verdet constant of doped optical fiber
CN106546411A (en) * 2016-10-19 2017-03-29 北京航空航天大学 Polarization maintaining optical fibre Verdet constant measuring apparatus and method based on Mach Zehnder and Michelson interferometers
CN106546411B (en) * 2016-10-19 2018-09-28 北京航空航天大学 Polarization maintaining optical fibre Verdet constant measuring apparatus and method based on Mach-Zehnder and Michelson interferometers

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