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Laser reflection expanding cone and method for manufacturing same

A laser reflection and manufacturing method technology, applied in photometry, optical radiation measurement, measuring devices, etc., can solve problems such as poor reliability, difficult processing of laser reflection beam expansion, poor scalability, etc., to solve processing problems and improve resistance Laser radiation damage ability, effect of reducing dependence

Inactive Publication Date: 2009-03-11
NORTHWEST INST OF NUCLEAR TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to propose a laser reflective beam expander and its manufacturing method which can be adapted to different laser beam intensities and diameters and has a convenient structure processing, which solves the existing technology of laser reflective beam expander processing difficulties, poor reliability and poor scalability question

Method used

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  • Laser reflection expanding cone and method for manufacturing same
  • Laser reflection expanding cone and method for manufacturing same
  • Laser reflection expanding cone and method for manufacturing same

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Embodiment Construction

[0029] The structure of the stepped laser reflection beam expander cone is as follows: figure 1 and figure 2 As shown, the main body of the stepped laser reflective beam expander cone of the present invention is a bottom outer ring with a diameter of R and an inner ring with a diameter of R 1 , a hollow cone structure with height L and cone angle θ. The cone surface is composed of a stepped structure with a cone reflection section separated by a cone connection section. figure 1 and figure 2 There are 4 conical reflective sections and 3-end conical connecting sections in total, of which 4 conical reflective sections include 1 conical conical reflective section and 3 conical conical reflective sections; usually the cone angle θ is taken as 45 degrees , The length of the cone, the size of the cone angle, etc. can be flexibly designed according to actual needs. The conical surface reflection section controls and expands the direction of the laser incident beam. By changing ...

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Abstract

The invention relates to a reflective beam-amplifying element applied to the measurement of intense laser parameters, and a manufacturing method thereof, comprising a cone body 1 which comprises at least two hollow conical surface reflecting sections 2 and at least one hollow cylindrical conical surface connecting section 3 used for connection two adjacent conical surface reflecting sections 2, the conical surface reflecting section 2 comprises one pyramid type conical surface reflecting section 21 and at least one cone type conical surface reflecting section 22, all the include angles between the conical surfaces of all the conical surface reflecting sections 2 and the incidence direction of a laser incident beam 5 are the same; and the outer surface of the conical surface reflecting section 2 is plated with a high reflecting film 4, thus solving the problems of difficult processing, poor reliability and poor expandability of the existing laser reflective amplified beams, and having the advantages of being suitable for different laser beam strength and convenient structural processing and the like.

Description

technical field [0001] The invention relates to a reflective beam expander element used in the measurement of strong laser parameters and a manufacturing method thereof. Background technique [0002] In the prior art, in the process of measuring the energy of strong laser beams such as high-power and high-energy lasers, in order to avoid damage to the cavity of the energy meter by the strong laser beam, a reflective beam expander is often placed in the direction where the laser beam is directly incident. In order to change the direction of the incident laser beam, and at the same time expand the incident laser beam to finally reduce the light energy density received by the inner surface of the energy meter cavity, and protect the energy meter cavity from being damaged by direct strong laser radiation. [0003] At present, optical elements such as large-diameter parabolic reflectors, reflective cones, or reflective hemispheres are often used to achieve reflection expansion of...

Claims

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Application Information

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IPC IPC(8): G01J1/06
Inventor 谢永杰侯洵刘晶儒刘卫平
Owner NORTHWEST INST OF NUCLEAR TECH
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