A light-triggered gas switch with low triggering light energy and its optical path design method

Abstract

The invention, which belongs to the technical field of high-power discharge switch devices, provides a low-trigger light-energy light-triggering gas switch and a light path designing method thereof. The switch is composed of a high-voltage electrode, an outer switch cylinder, a low-voltage electrode, a high-voltage electrode focusing lens, a limiting clamp ring, a collimating lens and a laser input assembly. The outer switch cylinder has a round cake structure; and circular grooves are formed in the two surfaces of the round cake structure and are communicated. The high-voltage electrode is sleeved in the groove at one surface of the round cake structure; and the low-voltage electrode is sleeved in the groove at the other surface of the round cake structure. A uniform electric field is setfor electric field distribution between the high-voltage electrode and the low-voltage electrode. According to the invention, low shaking and low delay of a laser trigger switch are realized under the low trigger light energy, so that the triggering requirement of the laser trigger switch is reduced. The switch has a compact structure and the cost is low. The trigger light can be transmitted by afiber, so that the engineering adaptability of the laser trigger switch is enhanced and a technical support for synchronous operation of multiple high-power light trigger switches is provided.

Description

technical field [0001] The invention relates to the technical field of high-power pulse modulators, in particular to a light-triggered gas switch with low trigger light energy and an optical path design method thereof. Background technique [0002] High-power switching technology is a key technology of high-power pulse modulators. Its main function is to realize energy storage during high-voltage isolation during charging, fast conduction during discharging, and control the working sequence of the entire system. High-power gas switches are widely used as switches for high-power pulse modulators because they have the advantages of being able to withstand high voltage, high current, high di / dt, and repeatable frequency operation. Among all kinds of gas switches, compared with self-breakdown, electric pulse trigger and other types of gas switches, laser-triggered high-power pulse gas switches have the advantages of low jitter, low delay, insulation and isolation between the tri...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a light-triggered gas switch with low triggering light energy and its optical path design method, so as to solve the technical problem that the existing light-triggered switch requires large laser energy

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