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:
Oct. 11, 2016
Filed:
Aug. 30, 2013
Applicant:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Inventors:
Kenya Suzuki, Atsugi, JP;
Yuzo Ishii, Atsugi, JP;
Koichi Hadama, Atsugi, JP;
Kazunori Seno, Atsugi, JP;
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 11/00 (2006.01); G02B 6/35 (2006.01);
U.S. Cl.
CPC ...
H04Q 11/0003 (2013.01); G02B 6/3566 (2013.01); H04Q 11/0005 (2013.01); H04Q 2011/0024 (2013.01);
Abstract
An optical switch includes an input port, output ports, and a spatial light modulating section that receives an optical signal from the input port to deflect the optical signal to a selected one of the output ports. A phase distribution with the same radius of curvature as that of a wavefront of the optical signal and a phase distribution that allows the deflected optical signal to be coupled to the output port are set for the spatial light modulating section.