Laser multi-parameter real-time measuring device

Abstract

The invention relates to a multi-parameter real-time measuring device for laser beams, which comprises a measured laser light source, a beam splitter, a controller, a frequency domain relevant parameter measuring device, a time domain relevant parameter measuring device, a space relevant parameter measuring device, an energy / power relevant parameter measuring device, a polarization state relevant parameter measuring device, measuring parameter integrated processing devices and a display device, wherein the beam splitter is used for respectively transmitting laser to each measuring device, the controller is used for controlling the beam splitter and each measuring device, the measuring parameter integrated processing devices are arranged behind each measuring device and are used for collecting measurement results of each measuring device and carrying out data processing and statistics, and the display device is arranged behind the measuring parameter integrated processing devices and is used for displaying the measuring results. When the laser multi-parameter real-time measuring device is adopted, the multi-aspect measurement can be carried out by aiming at the measured laser light source, the overall, efficient and real-time measurement and monitoring on the laser light source output characteristics can be realized, and faster and more convenient measurement is provided for the debugging and study of a laser.

Description

technical field [0001] The invention relates to the technical field of laser parameter measurement, in particular to a device for real-time multi-parameter measurement of laser beams. Background technique [0002] In order to meet different needs, the output beam of a laser source needs to be measured in many aspects, such as: spectral width, spot size, spot modulation, Rayleigh distance, beam waist position, divergence angle, directivity, beam quality factor, Single pulse energy, energy stability, average power, power stability, repetition frequency, pulse width, pulse stability, output signal-to-noise ratio, polarization direction, polarization degree, etc. However, the existing laser parameter testing instruments can only test a single or closely related laser parameters, and cannot measure multiple parameters simultaneously and comprehensively across multiple aspects such as time domain, frequency domain, and energy. This makes it necessary to measure the output beam ch...

AI Technical Summary

Problems solved by technology

This device is limited to relevant parameters such as pulse width, frequency, and image that can be obtained by the image acquisition card, and cannot fully reflect the multi-faceted state of the measured laser beam.

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