JPS6425029A - Measuring device of verdet's constant - Google Patents
Measuring device of verdet's constantInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1987
- 1987-07-21 JP JP18155687A patent/JPS6425029A/en active Pending
Cited By (6)
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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