A light-triggered gas switch with low triggering light energy and its optical path design method
A technology of gas switch and design method, applied in spark gap, optics, circuit and other directions with auxiliary trigger device, can solve the problem of large laser energy, etc., and achieve the effect of reducing trigger requirements, low jitter, and simple design
Active Publication Date: 2020-05-15
NAT UNIV OF DEFENSE TECH
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[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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[0038] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered by the claims.
[0039] A light-triggered gas switch with low triggering light energy, such as Figure 1-2 As shown, it includes a high-voltage electrode 1 , a switch outer cylinder 2 , a low-voltage electrode 3 , a high-voltage electrode focusing lens 5 , a limit snap ring 6 , a collimating lens 7 and a laser input assembly 8 . The laser energy required for the existing optical trigger switch is large (a few mJ for ultraviolet light ~ hundreds of mJ for infrared light, etc.), high power (10 6 ~10 8 The disadvantage of W) is that the integrated design of the collimating lens, focusing lens, and fiber laser input components with the switch effectively improves the power density at the focal point in the switch and reduces the light trigger energy required for the laser to ...
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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...
Claims
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IPC IPC(8): H01T2/02H01T2/00G02B27/09
CPCG02B27/09G02B27/0955G02B27/0977G02B27/0994H01T2/00H01T2/02
Inventor 殷毅李志强申倩倩闵亚飞刘政权
Owner NAT UNIV OF DEFENSE TECH