Novel high-energy laser beam quality measuring device

A beam quality, high-energy laser technology, applied in measurement devices, optical radiation measurement, measurement circuits, etc., can solve the problems of complex measurement structure, difficult real-time online measurement, and high requirements for key components

Pending Publication Date: 2021-06-08
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

[0003] The purpose of the present invention is: the traditional laser beam quality measurement method existing in the above prior art is not suitable for high-energy laser beam quality measurement and the existing high-power laser beam quality meas

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  • Novel high-energy laser beam quality measuring device

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention is further described in detail. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention, that is, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] In order to overcome the problems that the traditional laser beam quality measurement method is not suitable for high-energy laser beam quality measurement and the existing high-power laser beam quality measurement method has extremely high requirements for key components, complex measurement structures, and difficulty in real-time online measurement, the present invention provides A device suitable for measuring the quality of high-energy laser beams, including a laser light source to be measured 1, a high-sensitivity l...

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Abstract

The invention discloses a novel high-energy laser beam quality measuring device, which belongs to the field of photoelectric detection, and comprises a to-be-measured laser light source, a high-sensitivity linear array CCD, an imaging lens, a Rayleigh scatterer, a high-precision electric turntable, a high-precision electric turntable motion controller and a computer. According to the high-energy laser beam quality measurement device, in the process of realizing high-energy laser beam quality measurement, the system complexity of an existing detection device is reduced, the measurement range of the beam quality measurement device is improved, the problem of difficulty in measuring the quality of a hundred-kilowatt-level high-energy laser beam at present is solved, and meanwhile, the device has a real-time online measurement characteristic; and the device can be conveniently embedded into an industrial high-energy laser processing system and a high-energy laser weapon.

Description

technical field [0001] The invention belongs to the field of photoelectric detection, and in particular relates to a novel high-energy laser beam quality measuring device. Background technique [0002] With the continuous development of high-energy laser technology and the needs of industrial applications and high-energy laser weapons, the power of lasers is constantly increasing, reaching tens of kilowatts or even hundreds of kilowatts. Beam quality is an important performance parameter of high-energy laser, and its index will directly affect the actual processing method, the length of transmission distance and the final quality of work. In order to guide the continuous improvement of the performance of high-energy lasers and to monitor the status of the lasers in real time, it is necessary to achieve real-time and accurate measurement of the beam quality. At present, the methods used to measure the quality of laser beams mainly include mechanical scanning method, area arr...

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Application Information

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IPC IPC(8): G01J1/42G01J1/44G01J1/04
CPCG01J1/4257G01J1/44G01J1/0407G01J2001/448
Inventor 白金玺张霖巴荣声马骅石振东刘丽佳马可杨一柴立群任寰
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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