High-resolution multi-wavelength laser intensity distribution detector and measurement method implemented by same

Abstract

The invention relates to a high-resolution multi-wavelength laser intensity distribution detector which comprises a sampling target surface, a reflecting mirror, narrow-band filters, light spot acquisition devices, a network switchboard and a data processing device. A measurement method includes enabling the sampling target surface to carry out diffuse transmission sampling on incident laser light; enabling the image acquisition devices to form images of sampled light spots by the aid of the reflecting mirror; transmitting light spot data to the data processing device by the aid of the network switchboard; enabling the data processing device to correct shape distortion and intensity distortion of the light spots and then analyzing and processing the light spots; acquiring laser intensity distribution parameters by means of computing. The high-resolution multi-wavelength laser intensity distribution detector and the measurement method have the advantage that distribution of the intensity of the laser light with various wavelengths can be simultaneously accurately and quantitatively measured at high resolution.

Description

technical field [0001] The invention belongs to the technical field of laser parameter measurement, and in particular relates to a high-resolution multi-wavelength laser intensity distribution detector and a measurement method thereof. Background technique [0002] Lasers are increasingly used in scientific research, industry, national defense and other fields, and it is often necessary to measure laser parameters such as intensity distribution, centroid, and uniformity. At present, the most used measurement equipment is array detectors. Array detectors are generally composed of sampling attenuation units and photoelectric conversion devices such as photoelectric cells arranged according to certain rules. On the one hand, due to the size limitation of photoelectric cells, it is difficult to improve the resolution; On the other hand, array detectors can only measure one wavelength of laser light at the same time, but in practical applications it may be necessary to measure se...

AI Technical Summary

Problems solved by technology

At present, the most used measurement equipment is array detectors. Array detectors are generally composed of sampling attenuation units and photoelectric conversion devices such as photoelectric cells arranged according to certain rules. On the one hand, due to the size limitation of photoelectric cells, it is difficult to improve the resolution; On the other hand, the array detector can only measure one wavelength of laser light at the same time, and in practical applications, it may be necessary to measure several wavelengths of laser light at the same time. There is no related equipment and reports at present.

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