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1. (WO2015115301) BEAM COUPLING DEVICE AND OUTPUT RECOVERY METHOD FOR BEAM COUPLING DEVICE

Pub. No.:    WO/2015/115301    International Application No.:    PCT/JP2015/051663
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Fri Jan 23 00:59:59 CET 2015
IPC: H01S 5/40
B23K 26/00
H01S 5/0683
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: KONNO, Susumu
今野 進
KAWASAKI, Masato
河▲崎▼ 正人
MORITA, Daiji
森田 大嗣
KATSURA, Tomotaka
桂 智毅
FUJIKAWA, Shuichi
藤川 周一
Title: BEAM COUPLING DEVICE AND OUTPUT RECOVERY METHOD FOR BEAM COUPLING DEVICE
Abstract:
Provided are a beam coupling device and the like. The beam coupling device causes beams from a plurality of light sources and one or more spare light sources to be incident on a beam coupling optical system and to be coupled and outputted after the passage thereof through a beam coupling element, detects a breakdown in the plurality of light sources, moves at least some of the respective light sources and spare light sources and the beam coupling optical system, and causes a beam to be incident on the beam coupling optical system from the spare light source in place of the beam from the light source that has broken down and to be coupled with the beams from the plurality of light sources in an optical path after the beam coupling element.