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:
Apr. 21, 2020
Filed:
Mar. 06, 2017
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventor:
Tomoyuki Fujita, Sakura, JP;
Assignee:
FUJIKURA LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G02B 6/28 (2006.01); G02B 6/04 (2006.01); G02B 6/42 (2006.01); G02B 6/287 (2006.01); H01S 3/067 (2006.01); G02B 6/028 (2006.01); H01S 3/094 (2006.01); H01S 3/0941 (2006.01); H01S 3/23 (2006.01);
U.S. Cl.
CPC ...
G02B 6/262 (2013.01); G02B 6/028 (2013.01); G02B 6/04 (2013.01); G02B 6/26 (2013.01); G02B 6/28 (2013.01); G02B 6/287 (2013.01); G02B 6/42 (2013.01); G02B 6/4202 (2013.01); H01S 3/067 (2013.01); H01S 3/0675 (2013.01); H01S 3/09415 (2013.01); H01S 3/094003 (2013.01); H01S 3/2383 (2013.01);
Abstract
Provided is an optical device which can control a beam quality of outgoing light. An optical device () includes an entrance fiber bundle (), an exit fiber (), and a reduced diameter part (). The reduced diameter part () has (i) an entrance end surface () and (ii) an exit end surface () which is narrower in area than the entrance end surface (). In a case where the entrance end surface () is viewed from a normal direction of the entrance end surface (), a center (C) of the exit end surface () deviates from a center (C) of the entrance end surface ().