Repetition frequency giant pulse gas-laser laser head

Abstract

The invention discloses a repetition frequency giant pulse gas-laser laser head, and relates to the technical field of the gas laser. The laser head comprises multiple groups of laser gain units, multiple total reflection mirrors, multiple sub plane total reflection mirrors, a plane total reflection mirror, a rotary driving apparatus, a plane part reflection mirror and a structural cavity; the multiple groups of laser gain units are uniformly distributed on the structural cavity; one total reflection mirror and one sub plane total reflection mirror are arranged at the two ends of each laser gain unit in the length direction respectively; the plane total reflection mirror is mounted on the rotary driving apparatus and are arranged opposite to the multiple groups of the sub plane total reflection mirrors; and the axis of a rotary shaft of the rotary driving apparatus coincides with the central axis. The plane total reflection mirror is rotated based on certain frequency to be uniformly arranged with the laser gain units, and the continuous discharge stimulation accumulation time, laser output interval time and the output giant pulse laser energy are all the same, so that the giant pulse laser with certain repetition frequency and capable of outputting the same energy continuously can be obtained.

Description

technical field [0001] The invention relates to the technical field of gas lasers, in particular to a laser head of a repetition rate giant pulse gas laser. Background technique [0002] A laser is usually equipped with a group of laser gain units, which include a pair of discharge electrodes, and the discharge electrodes are in the shape of strips. An optical resonant cavity is set at both ends of the laser gain unit in the length direction, usually consisting of a total reflection mirror and a partial reflection mirror. The window outputs laser light. The laser gain of the gas laser is generated by discharge excitation, and there are two ways of continuous discharge excitation and repetitive frequency pulse discharge excitation. In comparison, continuous discharge excitation is easier to achieve stable operation than repetitive frequency pulse discharge excitation. Continuous discharge excitation produces continuous output laser, and its instantaneous power is the same ...

AI Technical Summary

Problems solved by technology

In order to obtain a high single laser pulse energy and instantaneous power, a large single pulse discharge excitation energy is required, and it is very difficult to achieve a stable operation at a repetition rate under a large pulse discharge excitation energy, making the high energy repetition rate pulse laser development is restricted

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