Disc piece solid laser

Abstract

The invention discloses a video disc fixing laser. A video disc laser crystal and a laser cavity resonator output lens form a laser cavity resonator; the focus of one of two paraboloid reflectors positioned in a conjugating way is positioned in the video disc laser crystal; a pump light sent by a semiconductor laser stack array is firstly collimated by a pump light collimator, then is imaged on the video disc laser crystal through the two paraboloid reflectors and is output as laser formed through the laser cavity resonator at last. The invention adopts the method of semiconductor stack array and has high efficiency, long service life and convenient equipment maintenance. A double-paraboloid pump system positioned in the conjugating way reduces the requirement for the collimation degree of the pump light and realizes high-efficiency imaging of the pump light. Each secondary pump luminous spot has regular and symmetrical shape, reasonable power density distribution and small position excursion of the light luminous spots for each imaging, and high-efficiency and even pumping is realized. The equipment has smaller volume, simple mechanical structure and adjustment and lighter weight, and is convenient for industrial application.

Description

technical field [0001] The invention belongs to laser technology, in particular to a disk solid laser. Background technique [0002] With the continuous development of laser technology, solid-state lasers have become a unique branch of the laser family with their own unique advantages, and are developing rapidly towards the direction of high average power, high beam quality, and high conversion efficiency. At the same time, solid-state laser technology interpenetrates with other high-tech, which makes the application of solid-state lasers more and more widely in the fields of automobile body outer panel welding, automobile panel tailor welding and metal sheet cutting. However, due to the limitations of the side-pumped structure and cooling method of the traditional rod-shaped solid-state laser, the radial temperature field distribution inside the crystal is generated, which causes problems such as thermal lens effect and thermal stress birefringence, and affects the quality ...

AI Technical Summary

Problems solved by technology

At present, the mainstream disk solid-state laser adopts the single paraboloid space rotation multi-pass pumping method proposed by Professor A.Geisen of the University of Stuttgart in Germany, which has high operating efficiency and realizes the perfect combination of high power, high efficiency and high beam quality of solid-state lasers. , but the biggest problem with this solution is that the mechanical structure is complex and the optical adjustment is difficult

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