A laser optical path stabilization device

Abstract

The present invention relates to the field of laser technology, in particular to a laser optical path stabilizing device, comprising a grating, three reflectors and four connecting rods, the four connecting rods are movably connected by rotating shafts to form a deformable rhomboid body, the said The grating and three reflectors are respectively connected on the four rotating shafts of the rhombus, and the reflective surfaces of the grating and the three reflectors coincide with the axis line of the rotating shaft of the rhombus; the grating, the three The optical path reflected by the reflector remains parallel to the central axis of the connecting rod connected to the rotating shaft; the present invention forms a deformable rhombus through four connecting rods movably connected through the rotating shaft, and the reflecting mirror arranged on the rotating shaft , can modify the light through rhombohedral deformation.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a laser optical path stabilization device. Background technique [0002] Semiconductor lasers generally refer to lasers that use semiconductor materials as working media. They have low manufacturing costs, high luminous efficiency, wide spectral range, and are widely used. The most common ones are daily necessities such as laser pointers. However, the design of the resonant cavity of the semiconductor laser is simple, and the effect on mode selection and frequency stabilization is not good, which leads to a relatively wide bandwidth of the output wavelength of the semiconductor laser. [0003] In order to improve the frequency stabilization and mode selection characteristics of semiconductor lasers, a common method is to add an external cavity, that is, add a resonator on the basis of the semiconductor laser's own resonator, and the two cavities jointly select modes to reduce the...

AI Technical Summary

Problems solved by technology

But when wavelength adjustment is required, this structure will cause the rotation of the output light direction

Although this kind of rotation is not much, it will still lead to the overall adjustment of the subsequent optical path

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