Line focusing spatial filter

Abstract

A line focusing spatial filter used for a laser system is composed of a plurality of cylindrical mirrors and two baffles with center slits. The line focusing spatial filter can achieve a series of core functions necessary for the high-power laser system, such as small-scale self-focusing restrain, image transmission, interstage isolation, light beam expansion and stray light circumvention, and can meet the requirement for high integration and compactness required by development of a next generation high-power laser system.

Description

technical field [0001] The invention relates to a filter, in particular to a line-focus space filter, in particular to a line-focus space filter capable of meeting the requirements of highly integrated and compact high-power laser systems. Background technique [0002] The successful introduction of spatial filters in high-power laser systems has made a qualitative leap in its output capability. At present, spatial filters have become the standard configuration of high-power laser systems, whether it is the domestic Shenguang series devices or the National Ignition Device of the United States. , France's megajoule device, and Japan's Vulcan series devices are all based on spatial filters. Since the spatial filter integrates a series of core issues involved in high-power laser systems, including suppression of small-scale self-focusing, image transfer, inter-stage isolation, beam expansion, and stray light avoidance, the spatial filter is used in high-power laser systems. Th...

AI Technical Summary

Problems solved by technology

Such a huge system greatly limits the range and efficiency of the device

With the further development of high-power laser-related fields, especially driven by the huge demand that the core requirements of portable high-power la

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