Returning light processing device

Abstract

The invention relates to a returning light processing device. The returning light processing device comprises a semiconductor refrigeration module, a black silicon structure absorption surface, a mechanical framework, an optical fiber clamp and an optical fiber. The mechanical framework is the framework of the returning light processing device and the internal of the mechanical framework is of a hollowed column structure; the black silicon structure absorption surface is arranged on the bottom surface of the hollow column structure of the mechanical framework; the semiconductor refrigeration module is arranged on the outer wall of the black silicon structure absorption surface; the outer side of the mechanical frame has the optical fiber clamp; the mechanical framework is integrated with the optical fiber clamp; and the optical fiber clamp clamps the tail end of the optical fiber. The returning light processing device does not need water cooling and air-cooled protection, can perform collection processing of returning light under hectowatt and satisfies application needs of a big power optical fiber laser.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a high-power fiber laser technology. Background technique [0002] High-power fiber lasers are favored by laser application manufacturers and R&D units due to their compact structure, stable performance, fully enclosed waveguide structure, low maintenance cost, good heat dissipation performance, high electro-optical efficiency, and good beam quality. , national defense and military, basic scientific research, optoelectronics and engineering technology are playing a huge role in promoting. [0003] In high-power continuous fiber lasers or pulsed fiber lasers, strict 100% feedback cannot be achieved due to the reflectivity of the high-reflection grating, the weak reflection loss of each melting point, the weak feedback of each all-fiber device itself, and the phenanthrene that may exist at the output end. Factors such as Nell reflection form the returning light in the fiber laser. ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of difficult processing of returned light, the present invention provides a processing device that can realize the collection and processing of returned light within 100 watts without water cooling or air cooling protection, meeting the application requirements of general high-power fiber lasers

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