Novel high-energy laser beam quality measuring device

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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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 measurement method has extremely high requirements for key components, complex measurement structures, and is very difficult. Difficult to achieve real-time on-line measurement, the invention provides a high-energy laser beam quality measurement device

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