Solid state laser apparatus and laser machining apparatus
First Claim
1. A solid state laser apparatus comprising:
- a laser medium having a rectangular plate form including upper and lower smooth surfaces extending substantially parallel to each other, right and left side surfaces extending substantially perpendicular to said smooth surfaces, and back and forth end surfaces for entrance/exit of a laser beam;
a pair of supporters disposed on the right and left sides of said laser medium;
a frame integrally containing said supporters;
a light source exciting said laser medium;
a condenser to condense excitation light from said light source for irradiation of said laser medium; and
cooling means for cooling said laser medium by at least one of said smooth surfaces thereof;
wherein an irregularity is formed in said supporter at an inner surface opposed to said side surfaces of said laser medium or at a back surface, and a cooling material is filled into a clearance of said irregularity.
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Accused Products
Abstract
A solid state laser apparatus and a laser machining apparatus are provided to provide high power laser beam having an excellent condensing performance at high efficiency and with high reliability. In the solid state laser apparatus, a recess is provided in a supporter disposed on a slab side surface at an excitation area corresponding portion. A high reflectance body having a cooling water filtrating groove is disposed in the recess to contact with a slab facing surface with pressure. The supporter contacts slab longitudinal both ends with pressure through a silicon rubber plate which is transparent to excitation light. A transparent silicon rubber O-ring is disposed to extend over an entire peripheral portion of a plane formed by a slab surface including the supporter pressure contacting porting and the supporter so as to seal cooling water and elastically support the slab.
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Citations
34 Claims
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1. A solid state laser apparatus comprising:
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a laser medium having a rectangular plate form including upper and lower smooth surfaces extending substantially parallel to each other, right and left side surfaces extending substantially perpendicular to said smooth surfaces, and back and forth end surfaces for entrance/exit of a laser beam; a pair of supporters disposed on the right and left sides of said laser medium; a frame integrally containing said supporters; a light source exciting said laser medium; a condenser to condense excitation light from said light source for irradiation of said laser medium; and cooling means for cooling said laser medium by at least one of said smooth surfaces thereof; wherein an irregularity is formed in said supporter at an inner surface opposed to said side surfaces of said laser medium or at a back surface, and a cooling material is filled into a clearance of said irregularity. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A solid state laser apparatus comprising:
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a laser medium having a rectangular plate form including upper and lower smooth surfaces extending substantially parallel to each other, right and left side surfaces extending substantially perpendicular to said smooth surfaces, and back and forth end surfaces for entrance/exit of a laser beam; a pair of supporters disposed on the right and left sides of said laser medium; a frame integrally containing said supporters; a light source exciting said laser medium; a condenser to condense excitation light from said light source for irradiation of said laser medium; and cooling means for cooling said laser medium by at least one of said smooth surfaces thereof; wherein said pair of supporters is made of a plurality of different materials.
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8. A solid state laser apparatus comprising:
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a laser medium having a rectangular plate form including upper and lower smooth surfaces extending substantially parallel to each other, right and left side surfaces extending substantially perpendicular to said smooth surfaces, and back and forth end surfaces for entrance/exit of a laser beam; a pair of supporters disposed on the right and left sides of said laser medium; a frame integrally containing said supporters; a light source exciting said laser medium; a condenser to condense excitation light from said light source for irradiation of said laser medium; cooling means for cooling said laser medium by at least one of said smooth surfaces thereof; and means for contacting with pressure said supports with the side surfaces of said laser medium to stabilize a thermal boundary condition at the side surfaces of said laser medium. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A solid state laser apparatus comprising:
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a laser medium having a rectangular plate form including upper and lower smooth surfaces extending substantially parallel to each other, right and left side surfaces extending substantially perpendicular to said smooth surfaces, and back and forth end surfaces for entrance/exit of a laser beam; a pair of supporters disposed on the right and left sides of said laser medium; a frame integrally containing said supporters; a light source exciting said laser medium; a condenser to condense excitation light from said light source for irradiation of said laser medium; and cooling means for cooling said laser medium by at least one of said smooth surfaces thereof; wherein a recess is provided in said supporter at an excitation area corresponding position opposed to said laser medium, and a member having high reflection to excitation light being disposed in said recess. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification