A Simulation Device for Thermal Bloom Effect of Laser Transmission and Adaptive Optics Compensation

Abstract

The invention discloses a simulation device for thermal halo effect of laser transmission and its adaptive optics compensation, including a simulated main laser, a simulated beacon laser, a first beam variable power system, a beam coupling transmission system, an adaptive optics system, a second Beam zoom system, third beam zoom system, simulated absorption cell system, main laser / beacon light splitting element, main laser detection optical narrowband filter element, main laser detection optical attenuation element, focusing lens, main laser far-field detection camera. The device can realize the laboratory simulation of the controllable generation of the equivalent atmospheric transmission thermal halo effect and its adaptive optical compensation under the collimated / focused transmission state of the main laser simulated in the low-power infrared band, and has the advantages of compact system scale, repeatable work and stability It has the advantages of high reliability, mature processing technology, and relatively low cost compared to the implementation of high-power laser light sources.

Description

technical field [0001] The invention relates to a simulation device for thermal blooming effect of laser transmission and its adaptive optical compensation, which can be used to generate real-time controllable equivalent thermal blooming effect of laser atmospheric transmission, so as to quantitatively evaluate thermal blooming effect on laser atmospheric transmission and its self-adaptation Influence of optical compensation effect. Background technique [0002] The thermal halo effect is one of the most serious nonlinear effects in the atmospheric transmission of high-energy lasers. Density changes further form thermal lensing; under the influence of atmospheric transverse wind, thermal lensing causes beam bending, intensity distribution distortion, beam scale expansion, energy concentration degradation and other effects generated by the transmitted laser, thus limiting the high-energy laser transmission through the atmosphere. The effective average power density has an ad...

AI Technical Summary

Problems solved by technology

However, considering the selectivity of the main laser wavelength for energy transfer applications reported in the literature, the use of high-power infrared laser sources to achieve indoor simulation of the thermal blooming effect and its adaptive optics compensation will undoubtedly greatly increase the cost of the laboratory system

At present, there is no technology and report on the laboratory simulation device of low-power infrared band simulation of the equivalent atmospheric transmission thermal halo effect and its adaptive optical compensation under the condition of the main laser

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