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. 23, 2012
Filed:
May. 21, 2009
Taro Ando, Hamamatsu, JP;
Haruyasu Ito, Hamamatsu, JP;
Yoshiyuki Ohtake, Hamamatsu, JP;
Takashi Inoue, Hamamatsu, JP;
Naoya Matsumoto, Hamamatsu, JP;
Norihiro Fukuchi, Hamamatsu, JP;
Taro Ando, Hamamatsu, JP;
Haruyasu Ito, Hamamatsu, JP;
Yoshiyuki Ohtake, Hamamatsu, JP;
Takashi Inoue, Hamamatsu, JP;
Naoya Matsumoto, Hamamatsu, JP;
Norihiro Fukuchi, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
A laser light sourceis provided with a first reflection mirror, a laser medium, an aperture, an output mirror, a half mirror, a light beam diameter adjuster, and a second reflection mirror, and outputs laser oscillation lightreflected by the half mirrorto the outside. The main resonator is composed by the first reflection mirrorand the output mirrordisposed so as to be opposed to each other with the laser mediumplaced therebetween. The external resonator is composed by the output mirrorand the second reflection mirrordisposed so as to be opposed to each other. The second reflection mirroris configured such that it gives amplitude or phase variations to respective positions in the section of a light beam when the light is reflected, the second reflection mirror presents an amplitude or phase variation distribution, and determines the transverse mode of the laser oscillation lightbased on the amplitude or phase variation distribution. Thus, a laser light source capable of easily controlling the transverse mode of the laser oscillation light can be realized.