JPS6470725A - Rotary element for plane of polarization - Google Patents

Rotary element for plane of polarization

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Publication number
JPS6470725A
JPS6470725A JP62226366A JP22636687A JPS6470725A JP S6470725 A JPS6470725 A JP S6470725A JP 62226366 A JP62226366 A JP 62226366A JP 22636687 A JP22636687 A JP 22636687A JP S6470725 A JPS6470725 A JP S6470725A
Authority
JP
Japan
Prior art keywords
polarization
plane
superconductive
solenoids
magnetic field
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
JP62226366A
Other languages
Japanese (ja)
Inventor
Kenji Tochigi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62226366A priority Critical patent/JPS6470725A/en
Publication of JPS6470725A publication Critical patent/JPS6470725A/en
Pending legal-status Critical Current

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  • Superconductor Devices And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To enable a plane of polarization to be rotated tunably in an arbitrary direction and to expand an application range by using an electromagnet which shows superconduction under a specific condition as a magnetic field generation source, and increasing magnetic strength. CONSTITUTION:As the magnetic field generation source, superconductive solenoids 5 and 5' made of a YBaCuO group superconductive material which shows a superconductive property at the critical temperature of around that of liquid nitrogen is used. By rotating the plane of polarization, linear polarization is made incident on a Faraday rotational material 4 from a window 3 provided at a heat insulating vessel 2, and is emitted via a window 6. Also, the rotational material 4 is arranged within the magnetic field of the solenoids 5 and 5'. And they are cooled by the liquid nitrogen 7 filled in the heat insulating vessel 2, thereby, the superconductive property can be maintained. Bycontrolling an excitation current 9 to be supplied from a power source 8 to the solenoids 5 and 5', the angle of rotation of the plane of polarization is changed. In such a way, it is possible to rotate the plane of polarization tunably and successively in the arbitrary direction.
JP62226366A 1987-09-11 1987-09-11 Rotary element for plane of polarization Pending JPS6470725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226366A JPS6470725A (en) 1987-09-11 1987-09-11 Rotary element for plane of polarization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226366A JPS6470725A (en) 1987-09-11 1987-09-11 Rotary element for plane of polarization

Publications (1)

Publication Number Publication Date
JPS6470725A true JPS6470725A (en) 1989-03-16

Family

ID=16844017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226366A Pending JPS6470725A (en) 1987-09-11 1987-09-11 Rotary element for plane of polarization

Country Status (1)

Country Link
JP (1) JPS6470725A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8179601B2 (en) * 2008-05-22 2012-05-15 Miyachi Corporation Cooling device for a Faraday rotator of an opto-isolator in a laser processing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8179601B2 (en) * 2008-05-22 2012-05-15 Miyachi Corporation Cooling device for a Faraday rotator of an opto-isolator in a laser processing apparatus

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