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Foldable objective image stitching grating pulse compressor and stitching status diagnosis system

A state diagnosis and pulse compression technology, applied in diffraction gratings, optics, instruments, etc., can solve the problems of complex splicing state diagnosis system, large space consumption of compressors, large splicing deviation of splicing gratings, etc. The effect of small space and simplified system structure

Active Publication Date: 2013-10-23
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

The compressor and monitoring system designed above have the following technical deficiencies: 1. There are too many splicing deviations of the splicing grating inside the compressor, a total of twenty-four; 2. The splicing status diagnosis system is too complicated; 3. The compressor consumes a lot of space

Method used

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  • Foldable objective image stitching grating pulse compressor and stitching status diagnosis system
  • Foldable objective image stitching grating pulse compressor and stitching status diagnosis system
  • Foldable objective image stitching grating pulse compressor and stitching status diagnosis system

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Embodiment Construction

[0035] Below we will further elaborate on the folded object image splicing grating pulse compressor and the splicing state diagnosis system of the present invention in conjunction with the accompanying drawings and specific embodiments, in order to understand the structural composition and work flow of the present invention more clearly , but it cannot be used to limit the protection scope of the patent of the present invention.

[0036] The structure of the present invention can be formed by image 3It is clearly seen that the folded object-image spliced ​​grating pulse compressor of the present invention includes four groups of spliced ​​gratings and two folded mirrors. The four groups of mosaic gratings are the first group of mosaic gratings 2 , the second group of mosaic gratings 3 , the third group of mosaic gratings 6 and the fourth group of mosaic gratings 7 . Each group of spliced ​​gratings is composed of an internal grating and an internal reflector at right angles ...

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Abstract

The invention relates to a foldable objective image stitching grating pulse compressor and a stitching status diagnosis system. The foldable objective image stitching grating pulse compressor comprises four groups of stitching gratings and two foldable reflectors, wherein the first groups of stitching gratings and the second group of stitching gratings are parallel, the third group of stitching gratings and the fourth group of stitching gratings are parallel, and two pairs of parallel stitching gratings are symmetrically distributed up and down. The stitching status diagnosis system comprises two monitoring light sources and two observation devices, wherein each monitoring light source emits one beam of light, which is divided into two monitoring light beams, and four monitoring light beams are respectively received by the corresponding observation devices after passing through four stitching positions and form diffractive focal spots. The size of the compressor is reduced, the stitching deviation of the stitching gratings is reduced and the stitching status diagnosis system is simplified.

Description

technical field [0001] The invention relates to a laser device, in particular to a compressor for a chirped pulse amplifying laser, and a splicing state diagnosis system for the compressor. Background technique [0002] In the field of high-energy lasers, chirped pulse amplification technology has created conditions for the generation of ultra-intense and ultra-short lasers. The technical route of chirped pulse amplification is: the ultra-short seed pulse introduces positive dispersion through the stretcher and expands it into a long chirped pulse in the time domain, amplifies the power of the amplifier, and then introduces negative dispersion through the compressor to compress and restore the long chirped pulse for ultrashort pulses. The compressor is composed of a diffraction grating. The working principle is that when the positive chirped pulse passes through the parallel grating, different spectral components experience different optical paths, and the dispersion co...

Claims

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Application Information

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IPC IPC(8): G02F1/35G02B7/182G02B7/00G02B5/18G01M11/02
Inventor 李朝阳戴亚平王韬徐光马伟新朱俭
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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