Laser heat dissipation material with similar optical fiber waveguide structure

Abstract

The invention discloses a laser heat dissipation material with an optical fiber waveguide-like structure, which is characterized in that a laser crystal or transparent ceramic with high heat-conducting property is adopted as a substrate and is processed into a sheet with the thickness of not more than 1mm. A micropore structure is processed in the thin sheet through laser engraving, so that the refractive index spatial distribution of the crystal is changed, and an optical fiber-like waveguide structure is formed in the crystal. In the transmission process, the laser is bound in the fiber-like waveguide structure. Compared with a conventional quartz material, the used material has better thermal conductivity, in the system operation process, the heat dissipation material directly takes away waste heat in the optical fiber, a better heat dissipation function can be achieved, additional heat dissipation operation is not needed, the complexity of the optical fiber laser system is reduced, the optical fiber laser system has better thermal management capability, and the service life of the optical fiber laser system is prolonged. And laser with high power and high beam quality can be output.

Description

technical field [0001] The invention relates to the field of laser technology, and mainly relates to a laser heat dissipation material with a fiber-optic waveguide-like structure, which is suitable for various fiber laser systems. Background technique [0002] Compared with traditional solid-state lasers, fiber lasers have the advantages of high conversion efficiency and good beam quality, and are one of the hottest directions in the field of laser technology research and development at home and abroad. Fiber lasers use doped fibers as the gain medium, which has a large surface area / volume ratio and better heat dissipation performance than traditional solid-state lasers. [0003] However, as the output power of a single fiber continues to increase, the power of a single-fiber fiber laser has reached the 10,000-watt level. Due to the existence of quantum defects, serious thermal effects will occur in the fiber, the mode field area will be reduced, and multimode phenomenon wi...

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