Optical resonator of high-power CO2 gas laser

Abstract

The invention relates to an optical resonator of a high-power CO2 gas laser. The optical resonator comprises a total reflecting mirror, a total reflecting mirror base, a total reflecting mirror gland cover, an output reflecting mirror, an output reflecting mirror base and an output reflecting mirror gland cover. The connection relationship is as follows: the optical resonator is installed and fixed on two end plates of a high-stability optical support and is fixedly connected with both ends of a chamber passage of a working gas circularly flowing in a closed mode through elastic adjustable bellows. The axle centers of the total reflecting mirror and the output reflecting mirror are adjusted through a calibration lighting source and are coaxial with the space optical axis 0 of a laser discharge chamber. After an energy storing charge and discharge circuit supplies electrical energy, one pair of discharge electrodes of the laser discharge chamber glow discharges evenly to a large area. After multiple times of actuating resonation through the total reflecting mirror and the output reflecting mirror, pulse signals repeat multiple times and become stronger and stronger to form laser light, and the laser light is transmitted through an output window so as to form the optical resonator of the laser. The invention has high stability and reliability and compact structure, and is applicable to high-power gas lasers and pulsed gas lasers.

Description

technical field [0001] The present invention relates to a gas laser, in particular to gas TEA CO with high power laser, high pulse energy and high repetition rate 2 Optical resonator devices for lasers. Background technique [0002] The optical resonator is an important part of the laser. For the gas CO with pulse output laser or continuous output laser 2 The laser, designed to fit the optical resonator, is the gas CO 2 One of the necessary conditions for lasers to obtain high-power laser output and high beam quality output. Laser output cannot be generated without an optical resonator. The optical resonator can repeatedly amplify the optical pulse signal along a certain direction through the excitation resonance of the working material, and make the pulse signal stronger and stronger to form a laser output. Due to the high power gas CO 2 Lasers generally operate in a multi-mode state (including longitudinal flow and transverse flow), resulting in the existence of comple...

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