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. 26, 2016
Filed:
Jan. 17, 2013
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Institute for Laser Technology, Osaka, JP;
Osaka University, Osaka, JP;
Koichi Hamamoto, Tokyo, JP;
Takahiro Yamada, Tokyo, JP;
Haik Chosrowjan, Osaka, JP;
Hiroaki Furuse, Osaka, JP;
Masayuki Fujita, Osaka, JP;
Yasukazu Izawa, Osaka, JP;
Junji Kawanaka, Osaka, JP;
Noriaki Miyanaga, Osaka, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Institute for Laser Technology, Osaka, JP;
Osaka University, Osaka, JP;
Abstract
A multi-beam combining apparatus includes a phase shifting section, a superposing section, an observing section and a phase control section. The phase shifting section generates a plurality of phase-shifted laser beams by shifting the phase of each of the plurality of laser beams. The superposing section generates a plurality of superposed laser beam by superposing the reference laser beam and each of the plurality of phase-shifted laser beams. The observing section generates interference pattern data of a spatial interference pattern which appears when observing each of the superposed laser beams. The phase control section carries out a feedback control of the phase shifts in the phase shifting section based on the interference pattern data obtained for every superposed laser beam, and thereby sets the plurality of phase-shifted laser beams to desired states.