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:
Dec. 29, 2015
Filed:
Aug. 28, 2013
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Shinsuke Tanaka, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 (2006.01); H01S 3/10 (2006.01); H01L 33/58 (2010.01);
U.S. Cl.
CPC ...
H01L 33/58 (2013.01); G02B 6/4206 (2013.01); G02B 6/4225 (2013.01); G02B 6/4208 (2013.01); G02B 6/4226 (2013.01); H01S 3/10023 (2013.01);
Abstract
A manufacturing method for an optical semiconductor device, including disposing a semiconductor element that has a polarization dependent gain or polarization dependent loss between optical waveguide modes differing in the direction of polarization, positioning a lens at one end face side of the semiconductor element based on an optical coupling loss between the lens and the semiconductor element, and repositioning the lens based on the polarization dependent gain or the polarization dependent loss of the semiconductor element.