Multi-wave-length laser switching and outputting device

Abstract

The invention discloses a multi-wave-length laser switching and outputting device which comprises a fundamental frequency laser source, multiple frequency multiplication devices, multiple electro-optical devices, multiple polarizers and one output window. The fundamental frequency laser source is used for producing fundamental frequency light. The frequency multiplication devices are used for producing multi-frequency multiplication light. The electro-optical devices rotate the polarization direction of the light under the control of voltage. The polarizers are used for performing high reflection on the light in the preset polarization direction and performing high transmission on the light in the direction vertical to the preset polarization direction. The output window is used for outputting the fundamental frequency light or the multi-frequency multiplication light, and one of the fundamental frequency light and the multi-fundamental frequency light can be output by the output window by exerting voltage or not exerting voltage on one or more electro-optical devices. According to the multi-wave-length laser switching and outputting device with the scheme, a nonlinear crystal and a spectroscopic lens do not need to be moved, and various wave lengths can be output along the same output optical path and through the same light outlet hole. In addition, lasers of all wave lengths can be output to the maximum.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a multi-wavelength laser switching output device. Background technique [0002] With the rapid development of laser technology, various lasers have been widely used in industry, scientific research, national defense, medicine, entertainment and other fields. In these fields, there are higher requirements for the comprehensiveness of functions and the convenience of use of lasers. Lasers that output lasers of multiple wavelengths simultaneously or alternately are becoming the development target of many institutions because of their multiple application functions brought by multiple wavelengths. [0003] In existing technologies, such as figure 1 As shown, a traditional laser multi-wavelength output mode includes a fundamental-frequency laser source 11, a frequency-doubler crystal 121 and a frequency-triple crystal 122 thereafter, a first beam splitter 131, a second beam splitter ...

AI Technical Summary

Problems solved by technology

This will be more troublesome when changing the output wavelength in actual use, and the entire external transmission and control optical path of the laser must be re-aligned and re-adjusted

At the same time, the obtained fundamental frequency light is the remaining laser light after undergoing double frequency and triple frequency transformation, and the obtained double frequency light is the remaining laser light after undergoing triple frequency transformation, and the power will be significantly higher than the initial state. Reduced, reducing the application range of the laser, which is not conducive to the multi-functional application of laser equipment

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