Laser generator
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSatoshi Eguchi, Takayuki Yamashita, Hiroyuki Hayashikawa
Life of this patent
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Abstract
The present invention relates to a laser generator in which a laser beam is generated by energizing a laser medium and is amplified optically with optically amplifying mirrors, and the laser beam is received by a absorber, wherein a spacer 9 having a through hole 9a for passing therethrough the laser beam and at least one small second through hole 9b is arranged at a circumference of an absorber 7, and a cooling medium 12 circulates in the small second through hole 9b of the spacer 9. In this structure, if a scattering laser beam is generated at the circumference of the laser beam absorber, a parallelism of the optical amplifying mirrors is maintained so that the laser generator can generate the stable laser beam.
Claims20
A laser generator comprising:
- (a) a laser generating device for generating a laser beam which has a proceeding course, the laser generating device having ends and an interior portion, the laser generating device comprising:
- (i) optical amplifying mirrors at the ends of the laser generating device;
- and
- (ii) a laser medium in said interior portion:
- (b) an absorber movable between (i) a laser outputting position at which the absorber does not interrupt the laser beam so that the laser beam is taken out of the laser generator and (ii) a laser absorbing position at which the absorber receives and absorbs the laser beam to prevent the laser beam from being output by the laser generator;
- and
- (c) a spacer arranged between the laser generating device and the laser absorbing position of the absorber and having a through hole on the proceeding course of the laser beam.
A laser generator comprising
- (a) a laser generating device for generating a laser beam which has a proceeding course, the laser generating device having ends and an interior portion, the laser generating device comprising:
- (i) optical amplifying mirrors at the ends of the laser generating device;
- and
- (ii) a laser medium in said interior portion;
- (b) an absorber movable between (i) a laser outputting position at which the absorber does not interrupt the laser beam so that the laser beam is taken out of the laser generator and (ii) a laser absorbing position at which the absorber receives and absorbs the laser beam to prevent the laser beam from being output by the laser generator;
- (c) a spacer arranged between the laser generating device and the laser absorbing position of the absorber and having a through hole on the proceeding course of the laser beam;
- and
- (d) an introduction tube for passing the laser beam through the introduction tube toward the absorber.
A laser generator comprising:
- (a) a laser generating device comprising a laser medium and an optically amplifying mirror, the laser generating device generating a laser beam by energizing the laser medium and optically amplifying the laser beam with an optically amplifying mirror;
- (b) an absorber receiving the laser beam and movable between (i) a laser outputting position at which the absorber does not interrupt the laser beam so that the laser beam is taken out of the laser generator and (ii) a laser absorbing position at which the absorber receives and absorbs the laser beam to prevent the laser beam from being output by the laser generator;
- and
- (c) a spacer which is arranged at a circumference of the absorber when the absorber is in the laser absorbing position and has a through hole for passing the laser beam through the spacer.
Dependencies are inferred from the claim text.