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:
Mar. 28, 2006
Filed:
Apr. 12, 2002
Yuichi Kawahata, Kawasaki, JP;
Yuichi Kawahata, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
Input light is split by a PBS into orthogonal polarized waves. One of the polarized waves is reflected by a mirror HR, and input to a 7λ/8 plate. The other is phase-controlled by a phase controller, and input to the 7λ/8 plate. The respective light beams to which a phase bias is applied by the 7λ/8 plate are input from a 2R mirror having reflectances that differ depending on a polarized wave to a GT resonator. The light beams output from the GT resonator again pass through the 7λ/8 plate, inversely travel the original optical path, and enter the PBS. Then, the light beams are output from an output 1 or 2 depending on a polarized wave.