White solid-state laser

Abstract

The invention relates to a white solid-state laser, which is particularly suitable for laser lighting, laser display and laser glaring. The white solid-state laser consists of a semiconductor laser array, a laser crystal, a nonlinear crystal and an optical system; a resonant cavity of fundamental frequency light is formed by the laser crystal and the nonlinear crystal; a first end face of the laser crystal and a second end face of the nonlinear crystal are directly plated with a film system to respectively form cavity mirrors of the resonant cavity of the fundamental frequency light; a periodically polarized nonlinear crystal is adopted by the nonlinear crystal; a one-dimensional linear array is adopted by the semiconductor laser array; and a red, green and blue laser synthesis system is adopted by the optical system for synthesizing three kinds of frequency doubling light into a white light beam and outputting the white light beam. The white solid-state laser has the advantages that the structure is compact, and miniaturization and mass production can be easily realized; the pump coupling efficiency and the optical conversion efficiency are high; the laser output power is stable, and the noise is low; the quality of the light beam is high, and the spatial coherence is low; the resonant cavity can be easily adjusted, the scope of the working temperature is wide, and the white solid-state laser can work reliably in a poor environment; and the service life of the laser is long.

Description

technical field [0001] The invention relates to a white light solid laser, which is especially suitable for laser lighting, laser display and laser glare. Background technique [0002] The combination of red, green and blue primary color laser beams is the most common method to achieve white laser beams. Currently, the most common method is to use a single red, green, and blue laser for beam synthesis. The volume is too large, and each primary color laser needs to be adjusted and synthesized separately. The production steps are increased in the batch production process, which reduces the production efficiency and increases the production cost. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the existing technology, to provide a compact semiconductor direct end-pumped solid-state laser, periodically polarized nonlinear crystal frequency doubler and white light synthesis technology, to achieve a compact structure, hi...

AI Technical Summary

Problems solved by technology

[0002] The combination of red, green and blue primary color laser beams is the most common method to achieve white laser beams. Currently, the most common method is to use a single red, green, and blue laser for beam synthesis. The volume is too large, and each primary color laser needs to be adjusted and synthesized separately. In the mass production process, the production steps are increased, the production efficiency is reduced, and the production cost is increased

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