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Line focusing spatial filter

A spatial filter and line focusing technology, applied in the field of filters, can solve problems such as limitations of use range and use efficiency, hinder the development of high-power laser systems, etc., to simplify the requirements of vacuum system equipment, save vacuum equipment, and break down risks. reduced effect

Inactive Publication Date: 2014-01-29
中国工程物理研究院上海激光等离子体研究所
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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 laser devices and fusion ignition power stations gradually move from concept to implementation, the existing spatial filters have become obstacles to high-power lasers. The key bottleneck in the development of power laser systems

Method used

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  • Line focusing spatial filter
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Embodiment Construction

[0027] The present invention will be further described below in conjunction with example and accompanying drawing, but should not limit protection scope of the present invention with this.

[0028] see first Figure 3 ~ Figure 5 , image 3 It is a schematic diagram of the independent decomposition type in the line-focus spatial filter device of the present invention, Figure 4 It is a schematic diagram of the combination type in the line-focusing spatial filter device of the present invention, Figure 5 It is a schematic diagram of the fusion type in the line focus spatial filter device of the present invention.

[0029] The present invention is based on the same principle, and has three different technical solutions according to different application requirements, which are as follows:

[0030] 1. Independent decomposition type

[0031] The basic principle of the independent decomposition type line focusing spatial filter is to decompose the two-dimensional focusing filteri...

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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...

Claims

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Application Information

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IPC IPC(8): G02B27/00G02B27/09
Inventor 高妍琦冯伟曹兆栋杨学东夏兰刘海辉马伟新朱俭戴亚平
Owner 中国工程物理研究院上海激光等离子体研究所
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