Blue-green band pulse all-solid-state laser

Abstract

A blue-green band pulse all-solid-state laser mainly comprises a single-frequency 1.06-micrometer pulse laser, an optical parametric oscillation amplifier, a frequency doubling module, a triple-frequency module and a control circuit. The blue-green band pulse all-solid-state laser has the advantages of simple and compact structure, narrow linewidth and high stability and pulse energy. The transmission wave band of the laser belongs to solar spectrum Frauenhofer darkline (518.36 nm), and the laser stays in an ocean blue-green window and is applicable to the underwater communication system.

Description

technical field [0001] The invention relates to a blue-green laser, in particular to a blue-green band pulse all-solid-state laser. Background technique [0002] At present, there are relatively few researches on pulsed laser technology in the 516-519nm band in the world, and its technical routes mainly focus on the following three types: [0003] 1) The direct output of semiconductor laser based on gallium nitride (GaN) matrix has a wavelength range of 510-520nm, but it is difficult to effectively increase the output peak power of this type of laser; [0004] 2) Using mixed doping (Er 3+ , Yb 3+ ) block and fiber gain medium, combined with the main oscillation-amplification (MOPA) technology to obtain a certain peak power 1554nm wavelength fundamental frequency output, and then use frequency doubling and triple frequency technology to obtain 518nm wavelength output, this scheme obtains low pulse energy, Only on the order of μJ; [0005] 3) Using high-energy 355nm ultrav...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcoming of low output energy of existing 516-519nm pulsed lasers, and provide a 516-519nm pulsed all-solid-state laser to obtain narrow-linewidth laser pulse output with high pulse energy

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