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:
Dec. 11, 2018

Filed:

May. 12, 2015
Applicant:

Shimadzu Corporation, Nakagyo-Ku, Kyoto-Shi, Kyoto, JP;

Inventors:

Rakesh Bhandari, Kyoto, JP;

Koji Tojo, Kyoto, JP;

Naoya Ishigaki, Kyoto, JP;

Shingo Uno, Kyoto, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/37 (2006.01); H01S 3/0941 (2006.01); H01S 3/16 (2006.01); H01S 3/06 (2006.01); G02F 1/35 (2006.01); H01S 3/00 (2006.01); H01S 3/091 (2006.01); H01S 3/113 (2006.01);
U.S. Cl.
CPC ...
H01S 3/0912 (2013.01); G02F 1/353 (2013.01); G02F 1/37 (2013.01); H01S 3/0092 (2013.01); H01S 3/0602 (2013.01); H01S 3/0941 (2013.01); H01S 3/113 (2013.01); H01S 3/1603 (2013.01); G02F 2001/354 (2013.01);
Abstract

A passive Q-switch laser has an excitation sourcefor outputting excitation light; a laser mediumbetween a pair of reflective mirrorsthat constitute part of an optical resonator, the laser medium emitting laser light upon being excited by the excitation light from the excitation source: a saturable absorberdisposed between the pair of reflective mirrors, the saturable absorber being configured such that the transmittance thereof increases as the laser light beam the laser medium is absorbed, a matrix tablein which the excitation-source output and the optimal value of the pulse width are stored in association with the repetition frequency; and a control unitfor referring to the matrix table, reading out the excitation-source output and the optimal value of the pulse width that correspond to an inputted repetition frequency, and controlling the excitation source such that the read-out excitation-source output and optimal value of the pulse width are attained.


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