Double-beam laser alignment system

Abstract

The invention relates to a double-beam laser alignment system. The double-beam laser alignment system comprises a controller, a first incident laser source and a second incident laser source, a firstlaser alignment device and a second laser alignment device, wherein the first incident laser source is provided with a first transmission light path, and the second incident laser source is provided with a second transmission light path; the first laser alignment device comprises a first light path conditioning assembly and a first position sensor which are sequentially distributed in the first transmission light path and both are in electrical control connection with the controller; and the second laser alignment device comprises a second light path conditioning assembly and a second positionsensor which are sequentially distributed in the second transmission light path and both are in electrical control connected with the controller. The system can rapidly achieve light path alignment of two beams of laser in the long-distance transmission, misalignment influences caused by factors such as light spot drift and mechanical displacement of light path optical elements are eliminated, precise collineation of light beams is ensured, and accordingly the using reliability, the stability and the measurement accuracy of an optical instrument are improved.

Description

technical field [0001] The invention relates to the technical field of optical path collimation, in particular to a double-beam laser collimation system. Background technique [0002] At present, nonlinear optical microscopes excited by multi-beam lasers, such as stimulated Raman scattering microscopes, coherent anti-Stokes Raman scattering microscopes, transient absorption microscopes, etc., mainly use titanium sapphire femtosecond lasers with optical parametric oscillators as light sources. The device realizes the confocal of multiple laser beams with different wavelengths, and then generates nonlinear optical signals. Since the exit of the laser is far away from the confocal focus of the multi-beams, factors such as the spot drift of the laser and the mechanical displacement of the optical components in the optical path will cause the multi-beam lasers to lose their confocality, resulting in the weakening or even disappearance of the nonlinear optical signal. This problem...

AI Technical Summary

Problems solved by technology

Since the exit of the laser is far away from the confocal focus of the multi-beams, factors such as the spot drift of the laser and the mechanical displacement of the optical components in the optical path will cause the multi-beam lasers to lose their confocality, resulting in the weakening or even disappearance of the nonlinear optical signal. This problem is extremely serious. Reduce the performance and stability of optical instruments and equipment, affecting the repeatability, reliability and accuracy of optical measurement

In addition, due to the extremely complex optical systems of nonlinear optical microscopes and time-resolved spectrometers, this problem will greatly affect the convenience and work efficiency of the instruments and equipment, and will greatly increase the workload of users

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