High-power optical fiber grating resonant cavity efficiency test platform

Abstract

The invention relates to a high-power optical fiber grating resonant cavity efficiency test platform, which comprises a water cooling plate, a pumping laser, a pumping light combiner, a ytterbium-doped optical fiber and a pumping light stripper, wherein the pumping laser, the pumping light combiner, the ytterbium-doped optical fiber and the pumping light stripper are arranged on the water cooling plate; a water cooling pipeline is arranged on the water cooling plate; the output end of the pumping laser is connected with the input end of the pumping light combiner through an optical fiber; the output end of the pumping light combiner is connected with the input end of a high-reflectivity optical grating; the output end of the high-reflectivity optical grating is connected with the input end of the ytterbium-doped optical fiber; the output end of the ytterbium-doped optical fiber is connected with the input end of a low-reflectivity optical grating; the output end of the low-reflectivity optical grating is connected with the input end of the pumping light stripper; the output end of the pumping light stripper outputs laser. The high-power optical fiber grating resonant cavity efficiency test platform has the advantages that the structure is compact; the use is convenient; the time is saved; the test work efficiency of the optical fiber grating can be obviously improved.

Description

technical field [0001] The invention relates to a fiber laser testing technology, in particular to a high-power fiber grating resonator efficiency testing platform. Background technique [0002] A fiber laser is a laser that uses a glass fiber doped with rare earth elements as a gain medium. Due to the small area of ​​the fiber core, a high power density can be formed in the fiber under the action of the pump light, and the particle number inversion of the laser working substance can be formed. After adding an appropriate positive feedback mechanism to form a resonant cavity, it can be Form the laser oscillation output. Fiber lasers are widely used, including optical fiber communication, shipbuilding, automobile manufacturing, metal and nonmetal drilling, welding, laser engraving, marking, cutting, military defense security, various medical equipment, large-scale infrastructure, etc. Due to the technical blockade and product embargo imposed on my country by foreign product...

AI Technical Summary

Problems solved by technology

[0013] The existing fiber grating manufacturing process is relatively complicated, and some of the working parameters of the produced fiber grating have a certain range of errors and fluctuations, and it is difficult to achieve precise control. Performance parameters are tested. In the existing fiber grating manufacturing process, it is necessary to simulate the working environment of the fiber grating to test a series of specific data such as the efficiency of the fiber grating in the working state of the laser, working temperature, aging parameters, etc., which is difficult to realize. The quantity is complicated, and it is difficult to guarantee the accuracy of the test

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