Abstract: A laser power meter according to the invention is configured to have a power damper including a laser receiving body that receives a laser beam on an inner surface thereof and converts laser power into heat, a case that forms a channel between the case and an outer surface of the laser receiving body, a heat insulation member between the laser receiving body and the case, and temperature measurement means for measuring a heat quantity absorbed by the laser receiving body; and conversion means for converting a signal of the temperature measurement means into an output value for a laser beam.

Abstract: A gas laser oscillation apparatus of orthogonal excitation type includes an electric discharge region having a pair of electric discharge electrodes, an axial flow blower having a plurality of rotor vanes and working by a permanent magnet motor, a first heat exchanger having a plurality of cooling fins, the cooling fins arranged on a plane perpendicular to an optical axis, a second heat exchanger having a plurality of cooling fins, the cooling fins arranged on a plane perpendicular to the optical axis, a gas duct having a gas passageway and arranged between the electric discharge region and the first heat exchanger, the axial flow blower being arranged on the gas passageway. The axial flow blower is arranged on a windward side of the first heat exchanger. The second heat exchanger is arranged on a windward side of the axial flow blower.

Abstract: A gas laser device includes a housing for enclosing a laser gas. The housing includes a main body having a frame-like structure with openings formed on both sides thereof, and a pair of cover members detachably attached to cover each of the openings. The main body is provided with an upper plate and a lower plate each extending along the optical axis of the laser light, and a pair of side plates respectively connecting both ends of the upper plate and the lower plate. Each of the cover members includes a partially cylindrical member having an arc-like cross-sectional shape in a plane perpendicular to the optical axis and extending along the optical axis, and a pair of side wall members occluding both ends of the partially cylindrical member. The partially cylindrical member has a bellows portion molded into a shape having peaks and valleys each alternating along the optical axis.

Abstract: A gas laser oscillation apparatus of orthogonal excitation type includes an electric discharge region having a pair of electric discharge electrodes, an axial flow blower having a plurality of rotor vanes and working by a permanent magnet motor, a first heat exchanger having a plurality of cooling fins, the cooling fins arranged on a plane perpendicular to an optical axis, a second heat exchanger having a plurality of cooling fins, the cooling fins arranged on a plane perpendicular to the optical axis, a gas duct having a gas passageway and arranged between the electric discharge region and the first heat exchanger, the axial flow blower being arranged on the gas passageway. The axial flow blower is arranged on a windward side of the first heat exchanger. The second heat exchanger is arranged on a windward side of the axial flow blower.

Abstract: A gas laser device includes a housing for enclosing a laser gas. The housing includes a main body having a frame-like structure with openings formed on both sides thereof, and a pair of cover members detachably attached to cover each of the openings. The main body is provided with an upper plate and a lower plate each extending along the optical axis of the laser light, and a pair of side plates respectively connecting both ends of the upper plate and the lower plate. Each of the cover members includes a partially cylindrical member having an arc-like cross-sectional shape in a plane perpendicular to the optical axis and extending along the optical axis, and a pair of side wall members occluding both ends of the partially cylindrical member. The partially cylindrical member has a bellows portion molded into a shape having peaks and valleys each alternating along the optical axis.

Abstract: A laser power meter according to the invention is configured to have a power damper including a laser receiving body that receives a laser beam on an inner surface thereof and converts laser power into heat, a case that forms a channel between the case and an outer surface of the laser receiving body, a heat insulation member between the laser receiving body and the case, and temperature measurement means for measuring a heat quantity absorbed by the laser receiving body; and conversion means for converting a signal of the temperature measurement means into an output value for a laser beam.

Abstract: A first optical base having a high-reflection mirror and a second optical base having a partial-reflection mirror are arranged in parallel to each other on both sides of an oscillator housing. A guide light source emits a guide light for aligning optical components in an optical path of a laser light emitted from an optical resonator and adjusting a processing point on a target object. An optical-component supporting unit includes optical components that guide the laser light in a direction perpendicular to an optical axis of the optical resonator. The guide light source is arranged on the second optical base.

Abstract: A laser oscillator is obtained in which the flatness of an optical element that makes contact with a cooling flange is maintained in a highly precise state, by suppressing a flange presser and a base from profile-deforming the cooling flange.

Abstract: A first optical base having a high-reflection mirror and a second optical base having a partial-reflection mirror are arranged in parallel to each other on both sides of an oscillator housing. A guide light source emits a guide light for aligning optical components in an optical path of a laser light emitted from an optical resonator and adjusting a processing point on a target object. An optical-component supporting unit includes optical components that guide the laser light in a direction perpendicular to an optical axis of the optical resonator. The guide light source is arranged on the second optical base.

Abstract: A laser oscillator is obtained in which the flatness of an optical element that makes contact with a cooling flange is maintained in a highly precise state, by suppressing a flange presser and a base from profile-deforming the cooling flange.