Multi-wavelength laser light path automatic switching device of laser damage tester

Abstract

The invention discloses a multi-wavelength laser light path automatic switching device of a laser damage tester. The multi-wavelength laser light path automatic switching device comprises three groupsof laser device beam expanding optical systems, wherein the first group of laser device beam expanding optical system comprises a first laser device, a first beam expanding optical system and a firstreflecting mirror M1, the first reflecting mirror M1 is fixedly arranged on an optical path, the second group of laser device beam expanding optical system comprises a second laser device, a second beam expanding optical system and a second reflecting mirror M2, the second reflecting mirror M2 is arranged on a rising and falling support frame, the third group of laser device beam expanding optical system comprises a third laser device, a third beam expanding optical system, a third reflecting mirror M3 and a fourth reflecting mirror M4, the third reflecting mirror M3 is arranged on the risingand falling support frame, and the fourth reflecting mirror M4 is fixedly arranged on the optical path. According to the invention, three laser devices with different wave bands are selected as lasersources, and the three different laser sources are switched and automatically switched by controlling several groups of total reflection mirrors, so that automatic switching of optical reflection iscompleted.

Description

technical field [0001] The invention belongs to the technical field of multi-wavelength laser common optical paths for laser damage testing, and in particular relates to a multi-wavelength laser optical path automatic switching device for a laser damage tester. The device can realize automatic switching of laser optical paths and optical coupling of multi-wavelength lasers. Background technique [0002] Laser has the characteristics of excellent monochromaticity, good coherence, good directionality and high brightness. However, the laser source is generally fixed. How to project lasers of different wavelengths into the same optical path is a difficult problem. [0003] Chinese utility model patent (application number: 2018208987142) discloses a laser damage threshold testing device, which lacks lasers of different wavelengths for testing and cannot face complex testing tasks. Chinese invention patent (application number: 201910534941.6) discloses an automatic testing device...

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Problems solved by technology

[0004] The invention provides a multi-wavelength laser optical path automatic switching method and device for a laser damage tester, which solves the problems in the prior art

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