Catadioptric multi-optical axis coaxiality dynamic detection device and detection method

Abstract

The catadioptric multi-optical axis coaxiality dynamic detection device and detection method belong to the field of photoelectric detection technology. In order to solve the problems existing in the existing technology, a window, a parabolic mirror, a refracting mirror, and a collimating lens form a two-stage beam reduction system. ;Collimating lens, electronically controlled attenuation film, energy beam splitter 1, polarizer 1 and P&S optical pupil detection camera are installed coaxially in sequence; energy beam splitter 1, energy beam splitter 2, 1 / 4 wave plate, 1 / 2 wave plate The wave plate, polarization beam splitter and mirror are installed coaxially in sequence; energy beam splitter 2, polarizer 2, focusing lens 1 and P&S optical axis detection camera are installed coaxially in sequence; polarization beam splitter, focusing lens 2 and P light The axis detection camera is installed coaxially in sequence; the reflector, the focusing lens three and the S light optical axis detection camera are installed coaxially in sequence and form the S light optical axis detection branch; the high-energy laser system detects the P light and S light in the output laser beam The axis is adjusted in real time to increase the energy density of the output laser beam.

Description

technical field [0001] The invention relates to the technical field of photoelectric detection, and relates to a catadioptric multi-optical axis coaxiality dynamic detection device and a detection method. Background technique [0002] High-energy laser systems are playing an increasingly important role in military applications. In traditional high-energy laser systems, lasers are limited by various factors such as thermal effects and nonlinear effects of gain devices, and it is difficult for a single laser to achieve high-power output. [0003] Common laser beam combining technologies mainly include polarization beam combining, spatial beam combining and wavelength beam combining, among which polarization beam combining technology is widely used. Polarization beam combining uses a polarization beam combiner to combine two laser beams whose polarization states are perpendicular to each other into one beam, thus doubling the power density while keeping the beam quality unchan...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that in the prior art, the switching wheel mechanism is used to monitor the deflection angle of the optical axis of each beam and the beam combining accuracy, there will be a time difference during the switching process of the switching wheel, and the monitoring information cannot be fed back to the correction mechanism in real time. The invention discloses a catadioptric multi-optical axis coaxiality dynamic detection device and detection method, which can detect the optical axis off-target amount of P light and S light in the output laser beam of the high-energy laser system in real time while the high-energy laser system is working, and Feedback to the high-energy laser system to be detected, the high-energy laser system adjusts in real time according to the feedback information, so that the optical power of the outgoing laser beam increases

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