Semiconductor pumping gas laser system based on electromagnetic driving mode

Abstract

The invention belongs to the technical field of laser, and particularly relates to a semiconductor pumping gas laser system based on an electromagnetic driving mode. The system comprises a laser working medium generating device based on an electromagnetic driving mode, a plume region and a semiconductor pumping system. According to the invention, when the system works, the laser working medium generating device ionizes a working medium under the action of an electric field and a magnetic field to generate plasmas, the plasmas are ejected in an accelerated manner under the comprehensive action of an electromagnetic field to form a plume region, a working medium which can be used as a laser gain medium in the plume region realizes laser output under the pumping action of the semiconductor pumping system, and due to the fact that the working medium in the plume region moves at a high speed, waste heat generated in the laser pumping process is efficiently discharged; and the system has the advantages of all-electric operation, light weight, compactness, high specific power, efficient thermal control, single-aperture output and the like, and promotes the development of a new generation of laser light sources with high electro-optical efficiency, high beam quality and high average power.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to a semiconductor pumped gas laser system based on an electromagnetic drive mode. Background technique [0002] Since the advent of lasers in the 1960s, people have been devoting themselves to the development of laser systems with high average power, high conversion efficiency and high beam quality, which have important applications in fields such as industry and national defense. The essence of the laser system is to convert the pump energy (such as chemical energy, electrical energy, light energy, etc.) into a laser output with high coherence and low entropy. It leads to the deterioration and damage of laser system performance, and is more obvious in high-energy laser systems. The key to the development of high-energy laser systems lies in thermal management. [0003] As the only light source that achieves megawatt-level output at present, the chemical laser is not on...

AI Technical Summary

Problems solved by technology

However, the single-channel output power of all-solid-state lasers has always remained at the 10,000-watt level, and the power level of 100,000 watts requires multiple beams. As for the megawatt-level solid-state laser system, there is currently no clear technical route

The root cause still comes back to the problem of heat dissipation. Since the solid-state laser medium can only dissipate heat through conduction, and its thermal conductivity is relatively low, it can only be made into structures with large specific surface areas such as thin sheets and optical fibers, which correspondingly lead to limited mode volume and other technical obstacles

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