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:
Jan. 01, 2019
Filed:
Nov. 17, 2016
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventor:
Toshiaki Watanabe, Annaka, JP;
Assignee:
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/09 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01); G02F 1/00 (2006.01); B28B 3/00 (2006.01); B28B 11/08 (2006.01); C04B 35/50 (2006.01);
U.S. Cl.
CPC ...
G02F 1/093 (2013.01); B28B 3/003 (2013.01); B28B 11/0845 (2013.01); B28B 11/0872 (2013.01); C04B 35/50 (2013.01); G02B 5/3025 (2013.01); G02B 27/283 (2013.01); G02F 1/0036 (2013.01); C04B 2235/3286 (2013.01);
Abstract
To provide a faraday rotator using a TGG ceramic sintered compact and a light isolator using the faraday rotator such that the influence of scattered light can be relatively reduced and overall characteristics degradation for the entire light isolator is minimized so that a high extinction ratio of at least 38 dB or greater is achieved. [Solution] The faraday rotator according to the present invention uses a TGG ceramic sintered compact having an average particle diameter of 0.2 to 5.0 μm, and has a transmission beam diameter of 0.3 mm or more, the TGG ceramic sintered compact being preferably annealed.