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Intense laser sampling attenuator

An attenuator, strong laser technology, applied in optics, instruments, scientific instruments, etc., can solve the problem of incapable of strong laser sampling and attenuation, and achieve the effect of promoting the measurement of strong laser parameters

Active Publication Date: 2014-11-05
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency that the laser sampling attenuator in the prior art cannot sample and attenuate the intense laser with a duration of tens of seconds, the present invention provides a strong laser sampling attenuator, which can achieve a power density of 10kW / cm 2 Tens of seconds of intense laser time sampling and decay

Method used

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  • Intense laser sampling attenuator

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Embodiment 1

[0028] figure 1 It is a structural schematic diagram of the strong laser sampling attenuator of the present invention. exist figure 1 Among them, the strong laser sampling attenuator of the present invention has a square shape, including a diffuse reflection sampling plate 1, an attenuation cavity plate 2, a sampling light scattering plate 3, a diffuse transmission material 4, and an attenuation base plate 5;

[0029] The diffuse reflection sampling plate 1 is used for diffuse reflection of more than 95% of the non-sampling strong laser;

[0030] The diffuse reflection sampling plate 1 is provided with a through hole for sampling the spatial intensity distribution of the incident laser beam;

[0031] The attenuation cavity plate 2 is provided with an attenuation cavity for attenuation and homogenization of sampling strong laser light, and the attenuation magnification can be adjusted by changing the structural size of the attenuation cavity;

[0032] The sampling light scat...

Embodiment 2

[0044] The structure of this embodiment is the same as that of Embodiment 1, except that the shape of the strong laser sampling attenuator is circular; the material of the attenuation cavity plate is blackened aluminum; the diffuse transmission material is diffuse Transmissive ceramic; the attenuation cavity is square in shape.

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Abstract

The invention discloses an intense laser sampling attenuator. A diffuse reflection sampling plate is arranged on the upper portion of the interior of the sampling attenuator, and the lower portion of the diffuse reflection sampling plate is sequentially and fixedly connected with an attenuation cavity plate, a sampling laser scattering plate and an attenuation base plate. Diffuse transmission materials are arranged between the sampling laser scattering plate and the attenuation base plate. The diffuse reflection sampling plate is used for conducting diffuse reflection on non-sampled intense lasers and has a high damage threshold, a through hole in the diffuse reflection sampling plate is used for conducting space sampling on laser beams, the sampling laser scattering plate is used for conducting diffuse reflection on sampled intense lasers, an attenuation cavity is used for conducting attenuation and homogenization on the sampled lasers, the diffuse transmission materials are used for sampling the scattered and homogenized lasers again, and a through hole in the attenuation base plate is used for conducting attenuation on the diffuse transmission sampled lasers again. By means of the intense laser sampling attenuator, the problem that the intense lasers which last for about tens of seconds and are 10 Kw / cm<2> in power density cannot be directly sampled and attenuated by an existing sampling attenuator is solved, and the important promoting effect on intense laser parameter measurement is achieved.

Description

technical field [0001] The invention belongs to the technical field of laser parameter measurement, and in particular relates to a strong laser sampling attenuator. Background technique [0002] In the application of strong laser measurement, it is usually necessary to use a sampling attenuator to spatially sample and attenuate the laser beam first. The sampling attenuator in the prior art can withstand a certain energy density, but it cannot sample the intense laser that lasts for tens of seconds and decay. Contents of the invention [0003] In order to overcome the deficiency that the laser sampling attenuator in the prior art cannot sample and attenuate the intense laser with a duration of tens of seconds, the present invention provides a strong laser sampling attenuator, which can achieve a power density of 10kW / cm 2 The intense laser light is time sampled and decayed for tens of seconds. [0004] The present invention is achieved through the following technical sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/01G01J1/04
Inventor 庞淼张卫胡晓阳周文超高学燕周山何均章
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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