The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 1991
Filed:
Dec. 01, 1989
Applicant:
Inventor:
Koichi Haruta, Ichihara, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
350378 ; 350401 ; 350407 ; 369110 ;
Abstract
An optical output controlling method according to the present invention is employed in an optical system in which a polarized light is illuminated on a magneto-optical material, and in which the light reflected by the magneto-optical material is passed through a polarization beam splitter and then detected through an analyzer. An optical output can be adjusted by rotating the polarization beam splitter. In consequence, the Kerr rotation angle caused by the magneto-optical material can be increased, and the carrier to noise ratio can be thereby improved.