Continuous green laser with LD side pumping full solid-state high power high efficient

Abstract

The invention discloses a LD side diode-pumped all-solid-state high-power continuous green laser. On the level road of all-plane incident mirror, the laser crystal and planar-concave are installed in turn. A high-power diode-pumped component is set on the side of Laser Crystal. The frequency doubling crystal and planar-concave all-incident mirror are set on the road of folding mirror. The basic frequency light from laser diode LD side after pumping the crystal oscillates and enlarges in the V-type resonator cavity formed by the all-planar mirror, all-concave mirror and planar-concave output mirror, which is output by the output mirror through two-way doubling frequency. The output power is over 40W, and the frequency efficiency is greater than 40%, with good beam quality, high frequency efficiency, and higher stability.

Description

technical field [0001] The invention relates to a laser device, in particular to an LD side-pumped all-solid-state high-power and high-efficiency continuous green laser. Background technique [0002] The all-solid-state high-power continuous operation green laser pumped by laser diode (LD) has the advantages of high conversion efficiency, small size, good beam quality, small divergence angle, long life, compact structure and high stability. It has a wide range of applications in communication, industrial processing, pollution detection, etc., and it can also be used as a light source for large-screen color display. Extensive research has been carried out at home and abroad. Among them, He Jingliang et al. reported the use of LD to pump Nd:YVO in two directions. 4 / KTP high-power green laser with intracavity frequency doubling. When the pumping power is 28W, the maximum continuous green light output is 8.8W. But on the one hand, the end-pumped form limits the higher power ...

AI Technical Summary

Problems solved by technology

But on the one hand, the end-pumped form limits the higher power output of the laser; on the other hand, the use of Z-shaped cavity structure and double-ended pumping form, too many components in the cavity make the laser structure complex and difficult to adjust. Reduce the reliability of the laser to a certain extent

P.K.Mukhopadhyay et al reported a Nd:YAG / KTP side-pumped V-cavity continuous operation green laser with an output power of 30.5W, but the conversion efficiency is low, only 11.7%, which limits the scope of practical application

Chinese patent 93105518 proposes a continuous Nd:YAG laser, but the green light output power is small, only 4.2W

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