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.

Date of Patent:
Sep. 04, 2018

Filed:

Nov. 11, 2014
Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Goro Fujita, Kanagawa, JP;

Kenji Tanaka, Tokyo, JP;

Kunihiko Hayashi, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); G02B 26/00 (2006.01); H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/353 (2013.01); G02B 26/00 (2013.01); G02F 1/3501 (2013.01); H01S 3/0092 (2013.01); G02F 2001/3503 (2013.01); G02F 2203/15 (2013.01);
Abstract

Embodiments of a novel control device and associated techniques for controlling a light path length of a resonator to allow resonance in a mode of higher strength are described herein. The control device includes: a drive section that moves at least one reflecting unit in the resonator; and a control section that controls a light path length of the resonator, by causing the drive section to move the at least one reflecting unit so that the laser light that enters into the resonator changes from a state in which the laser light resonates in a first mode of the plurality of modes to a state in which the laser light resonates in a second mode different from the first mode, on the basis of a detection result of a reflected light from the resonator.


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