Laser efficient pulse discharge system

Abstract

The invention relates to the technical field of high-power pulse gas lasers, in particular to a laser efficient pulse discharge system. The problems that in an existing pulse discharge circuit, delay time between main discharge and preionization is automatically matched through discharge circuit parameters, the original matching state of the pulse discharge circuit is destroyed, meanwhile, adjustment within a large time range cannot be achieved, and efficient and repeated frequency discharge cannot be carried out are solved. The system comprises two paths of delay adjustable signal distributors, two trigger devices, a preionization charge-discharge circuit and a main discharge charge-discharge circuit. The preionization charge-discharge circuit is composed of a first charge power supply, a first pulse switch, a preionization energy storage capacitor, a charge-discharge inductor and spark needles connected with the two ends of the charge-discharge inductor. The main discharge charge-discharge circuit is composed of a second charge power supply, a second pulse switch, a main discharge energy storage capacitor, a charge-discharge inductor and electrode couples connected with the two ends of the charge-discharge inductor. According to the system, high-repeating-frequency charge operating is achieved, and high-average-power laser output is obtained.

Description

technical field [0001] The invention relates to the technical field of high-power pulsed gas lasers, in particular to a pulse discharge system for high-power high repetition frequency transverse excitation pulsed gas lasers. Background technique [0002] High-power transverse excitation pulsed gas laser adopts glow discharge excitation and pulse repetition frequency working system. Due to the high working pressure and large injected discharge energy, in order to achieve uniform pulse glow discharge, pre-ionization technology must be used. The function of pre-ionization is to generate initial free electrons with a higher concentration and uniform distribution in the discharge area before the main electrode pair (cathode and anode) is discharged, greatly reducing the breakdown voltage threshold of the discharge area, so that the main electrode pair is in A uniform glow discharge occurs at lower voltages. Pre-ionization usually adopts spark needle discharge ultraviolet pre-ion...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of automatically matching the parameters of the discharge circuit between the delay time between the main discharge and the pre-ionization in the existing pulse discharge circuit. This method destroys the original matching state of the pulse discharge circuit and cannot achieve a relatively The adjustment of a large time range, the problem that high repetition frequency discharge cannot be performed, provides a high-efficiency pulse discharge system for lasers

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