Plane mirror spliced heavy-calibre grating pulse compressor

A large-aperture grating and pulse compression technology, which is applied in diffraction gratings, instruments, optics, etc., can solve the problems of high cost and difficulty, and achieve the effects of easy use, low adjustment difficulty, and easy realization

Active Publication Date: 2014-04-09
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

high cost and difficult

Method used

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  • Plane mirror spliced heavy-calibre grating pulse compressor
  • Plane mirror spliced heavy-calibre grating pulse compressor
  • Plane mirror spliced heavy-calibre grating pulse compressor

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0025] see Figure 4 , Figure 4 It is a schematic diagram of the structure of the large-diameter grating pulse compressor spliced ​​with a plane mirror of the present invention. It can be seen from the figure that the large-diameter grating pulse compressor of the present invention is composed of a first grating 11, a second grating 12, a first plane mirror 13, and a third grating. 15. The fourth grating 16 and the second plane mirror 14, the positional relationship of the above components is as follows:

[0026] The grating surfaces of the first grating 11 and the second grating 12 are parallel to each other, and the first plane mirror 13 is perpendicular to the second grating 12 and form a first combination. The grating surfaces of the third grating 15 and the fourth gr...

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Abstract

The invention discloses a plane mirror spliced heavy-calibre grating pulse compressor which comprises a first grating, a second grating, a first plane mirror, a third grating, a fourth grating and a second plane mirror, wherein the position relation of the components is as follows: grating surfaces of the first grating and the second grating are parallel and opposite, the first plane mirror is vertical to the second grating, the first grating, the second grating and the first plane mirror form a first combination, grating surfaces of the third grating and the fourth grating are parallel and opposite, the second plane mirror is vertical to the fourth grating, the third grating, the fourth grating and the second plane mirror form a second combination, and the first combination and the second combination are symmetrically arranged in a mirror direction manner. The invention has the advantage that the bottleneck problem of the demand on the heavy-calibre compressed grating at present can be effectively solved by replacing a heavy-calibre compressed grating or spliced grating required in the conventional heavy-calibre pulse compressor with a combination of a heavy-calibre plane reflector and a smaller-calibre grating.

Description

technical field [0001] This design involves a pulse compressor, especially the compression of a chirped pulse of a large aperture and high energy laser. Through innovative structural design, the design uses a combination of a large-aperture flat mirror and a smaller-aperture grating to replace the large-aperture compression grating or spliced ​​grating usually required in a large-aperture pulse compressor, so that the effective area of ​​the grating can be reduced at most It is half of the original demand and obtains high-power laser pulses with large energy and large aperture space and time chirp compensation at the same level of compression efficiency, which can effectively solve the bottleneck problem of the current demand for large-aperture compression gratings. It is mainly used in the compression of high-energy, large-diameter, and high-power laser pulses. Background technique [0002] In recent years, with the invention and wide application of chirped pulse amplifica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/35G02B7/182G02B7/00G02B5/18
Inventor 冷雨欣王乘陆效明李儒新徐至展
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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