Pneumatic-control optical limiter

Abstract

A pneumatic-control optical limiter comprises a sealing cavity and a decompress system. Characteristics that nonlinear scattering effect of nonlinear scattering media is relative to solvent boiling point are adopted by the optical limiter; and by means of adjusting air pressure around the nonlinear scattering media, real-time control on response of optical limiting is realized. Real-time and quantitative adjustment on the response of optical limiting can be realized with the pneumatic-control optical limiter which can be applicable to laser protection and laser control of sensitive optical elements.

Description

technical field [0001] The invention relates to an optical limiter, in particular to an optical limiter controlled by air pressure. Background technique [0002] The development of modern laser technology has made laser widely used in the fields of distance measurement, radar and communication, but what follows is that the strong laser can easily cause damage to the human eye and the photoelectric equipment in the system, so the safety protection of dangerous laser become an urgent need. [0003] An optical limiter refers to a material or device that has the following properties: when irradiated by a laser, it has high transmittance under low-intensity laser irradiation and low transmittance under high-intensity laser irradiation. The optical clipping process is realized by using nonlinear materials such as single-walled carbon nanotubes, multi-walled carbon nanotubes, and graphene through nonlinear optical effects such as nonlinear absorption, nonlinear refraction, or nonl...

AI Technical Summary

Problems solved by technology

Although optical limiting materials based on new materials such as graphene have been deeply researched and developed rapidly, the current optical limiters or materials cannot be adjusted in real time, and it is difficult to meet the use requirements in changing application environments

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