Solid-state laser device and machining apparatus using same

B - Operations – Transporting – 23 – K

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B23K 26/00 (2006.01) G02B 6/42 (2006.01) H01S 3/02 (2006.01) H01S 3/042 (2006.01) H01S 3/05 (2006.01) H01S 3/093 (2006.01) H01S 3/04 (2006.01)

Patent

CA 2058329

Abstract of the Disclosure According to the present invention there are provided a solid-state laser device using a laser rod not smaller than 180 mm in length as a laser medium, thereby capable of providing a high output power, facilitating maintenance and inspection, and permitting the reduction of size and simplification in comparison with a conventional laser device using plural laser rods, as well as a machining apparatus using the said laser device as a machining energy source, and a solid-state laser device wherein a laser medium is held in a free state within a resonator so that a longitudinal direction of the laser medium is coincident with an optical axis direction of laser beam and so that the laser medium is capable of expansion or contraction in the said optical axis direction, thereby preventing the breakage of the laser medium and the deviation of the optical axis of laser beam.

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