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1. (WO1998052261) BAND NARROWING LASER

Pub. No.:    WO/1998/052261    International Application No.:    PCT/JP1998/002046
Publication Date: Fri Nov 20 00:59:59 CET 1998 International Filing Date: Sat May 09 01:59:59 CEST 1998
IPC: H01S 3/1055
H01S 3/106
H01S 3/13
H01S 3/136
H01S 3/139
Applicants: KOMATSU LTD.

WAKABAYASHI, Osamu

TANAKA, Hirokazu

ARIGA, Tatsuya

Inventors: WAKABAYASHI, Osamu

TANAKA, Hirokazu

ARIGA, Tatsuya

Title: BAND NARROWING LASER
Abstract:
A band narrowing laser having a band narrowing module which narrows by a band narrowing element a band of the laser beam generated from a laser medium, wherein a wavefront correction means (10) that corrects the wavefront of an incident laser beam and projects the corrected beam is installed in the band narrowing module (6) to produce a laser beam with a narrow and stable spectral line width.