Mixed heat dissipation apparatus used for high-power optical fiber amplifier

Abstract

The invention belongs to the technical field of a photoelectric device, and relates to a mixed heat dissipation apparatus used for a high-power optical fiber amplifier. The mixed heat dissipation apparatus comprises a grid-shaped cooling board and a dissipater, wherein V-shaped grooves used for placing optical fibers are formed in the surface of the cooling board in an etching manner; transverse and longitudinal pore channels are formed in the cooling board, and a cooling medium is arranged in the pore channels; optical fiber melting points are coated with the lower surface of the radiator while the upper surface is fitted with a vapor chamber of a nanometer porous material heat pipe; in the heat pipe, the vapor chamber is connected with a condensing chamber through a nanometer porous film; and the lower surface of the condensing chamber is fitted with the upper surface of a heat sink part. By adoption of the novel integrated heat dissipation apparatus, the temperature balance of the high-power optical fiber amplifier can be ensured; by mixing passive and active heat dissipation ways, the advantages of low noise, rapid cooling and the like are achieved; and in addition, relatively high reliability and operability are realized.

Description

technical field [0001] The invention belongs to the technical field of photoelectric devices, and relates to a hybrid cooling device for high-power optical fiber amplifiers. The invention is conducive to significantly improving the use power and long-term use reliability of the optical fiber amplifiers. Background technique [0002] Fiber lasers have been a constant concern, and ytterbium-doped fibers have achieved hundreds of watts of output power. This laser is used as a heat source in many commercial and military applications for printing, welding, etching, medicine and remote sensing, among others. Rare earth-doped fiber lasers have good performance in terms of optical-optical and electrical-optical conversion efficiency, single-mode low-noise output, and wide tunability. Now people are interested in how to further extend the output power of rare earth metal fiber lasers to the kilowatt level. Gain medium fiber amplifiers face many thermal management challenges during ...

AI Technical Summary

Problems solved by technology

However, in the process of laser continuous pumping operation, after excluding the factors of fiber stripping and fusion splicing quality, the optical fiber at the fusion splice point is often fused due to local high temperature and difficult to handle, which seriously affects the safety of the long-term operation of the laser system.

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