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Universal solid absorption type high-energy laser energy measuring probe

A high-energy laser and energy measurement technology, which is applied in the field of laser energy measurement devices and general-purpose solid absorption type high-energy laser energy measurement probes, can solve problems such as energy escape loss, low absorption efficiency, and strong laser hard damage, and improve practicability. , Improve the ability and accuracy, and ensure the effect of service life

Active Publication Date: 2020-09-08
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a universal solid-absorbing high-energy laser energy measurement probe to solve the existing high-energy laser energy meter design. The problem of strong laser hard damage, the problem of low total absorption efficiency of energy escape loss, and the problem of universality testing of ring and solid laser beams

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  • Universal solid absorption type high-energy laser energy measuring probe
  • Universal solid absorption type high-energy laser energy measuring probe
  • Universal solid absorption type high-energy laser energy measuring probe

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Embodiment

[0032] A general-purpose solid absorption type high-energy laser energy measurement probe, such as Figure 1 to Figure 5 As shown, it includes a laser absorber 1, a beam expander cone 2, and a light collector 3. The upper part of the laser absorber is provided with a light collector for collecting laser light, and the bottom end of the light collector is close to the side of the laser absorber. A photoelectric detection unit 4 is also provided, and the beam expander cone is assembled in the laser absorber for reflecting the laser light to the laser absorber;

[0033] The laser absorber is a "urn"-shaped structure;

[0034] It also includes a temperature detection element 5 for temperature detection, the outer wall of the laser absorber is provided with a counterbore, the counterbore is provided with a temperature detection element, and the inner wall of the beam expander is also provided with a temperature detection element.

[0035]Based on the specific design structure abov...

specific Embodiment approach

[0037] As a more specific design, since the high-energy laser has a strong ablation hard damage capability, its ultra-high power density (W / cm2) and energy density (J / cm2) can easily destroy the equipment and facilities on the laser transmission optical path, so , the outer wall of the laser absorber is provided with an installation groove 7 for assembling a cooling pipe, and the installation groove is spirally arranged around the outer wall of the laser absorber, and the cooling pipe is arranged in the installation groove to realize rapid cooling. However, there are many specific implementation methods for the layout of the cooling pipeline, such as the following but not limited to the following methods:

[0038] a. The inlets and outlets of the cooling pipes are all set at the bottom, and the upward passage of the cooling liquid is arranged crosswise with the downward passage; (that is, the adjacent installation grooves are used for the installation of the liquid upward and l...

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Abstract

The invention discloses a laser energy measuring device, particularly relates to a universal solid absorption type high-energy laser energy measuring probe, and belongs to the field of high-energy laser energy testing. The device comprises a laser absorber, a beam expanding cone and a light collector, wherein a light collector for collecting laser is arranged at the upper part of the laser absorber, a photoelectric detection unit is also arranged at the bottom end of the light collector close to the side surface of the laser absorber, the beam expanding cone is assembled in the laser absorberand is used for reflecting the laser to the laser absorber, and the temperature detection element used for temperature detection is also included; according to the invention, through the design of thebeam expanding cone and the laser absorber structure, the problem of strong laser hard damage in the existing high-energy laser energy meter is effectively solved; meanwhile, the problem of low totalabsorption efficiency caused by energy escape loss of a traditional structure can be solved, the invention can also be applied to energy measurement of measured lasers with different light spot distribution such as solid light beams and annular light beams, and the practicability of the device is improved.

Description

technical field [0001] The invention relates to a laser energy measuring device, in particular to a general-purpose solid absorption type high-energy laser energy measuring probe, which belongs to the field of high-energy laser energy testing. Background technique [0002] The high-energy laser energy meter generally realizes the total absorption measurement of the incident laser energy based on the principle of calorimetry, and is mainly composed of an energy measurement probe, a cooling circulation system, and a data acquisition system. The high-energy laser energy measurement probe is the core component of the high-energy laser total absorption energy meter. Its main function is to convert the light energy of the measured high-energy laser into thermal energy, and then calculate the energy value of the measured high-energy laser based on calorimetry. At present, the mainstream high-energy laser energy measurement probes at home and abroad use graphite, oxygen-free copper,...

Claims

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Application Information

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IPC IPC(8): G01J1/42G01J1/04
CPCG01J1/4257G01J1/0411G01J1/0422G01J1/0474
Inventor 常艳何均章魏继锋周山庞淼解平雷德川高学燕周文超李光黄德权吴聪聪张林李雪锋
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS