Pulse type solid laser

Abstract

The invention provides a pulse type solid laser. The pulse type solid laser comprises a main oscillator assembly and a power amplifier assembly; the main oscillator assembly comprises a first pumping source, a laser output module and a laser transmission module, and light emitted by the first pumping source forms seed laser after passing through the laser output module; the laser transmission module comprises a first total reflection mirror and a plurality of reflection mirrors; a plurality of reflectors are arranged on the opposite side of the first total reflection mirror; the power amplifier assembly comprises a second pumping source, a waveguide and a slab crystal; the slab crystal is located between the first total reflection mirror and the plurality of reflection mirrors, and light emitted by the second pumping source passes through the waveguide and the first total reflection mirror and then enters the slab crystal; seed laser passes through the plurality of reflection mirrors and the first total reflection mirror. The laser output by the main oscillator assembly passes through the slab crystal, then the output laser power can be amplified, meanwhile, the quality of light beams and the pulse width are not affected, and therefore the laser which is short in pulse, large in average power and high in light beam quality can be provided.

Description

technical field [0001] The invention relates to the technical field of solid-state lasers, in particular to a pulse-type solid-state laser. Background technique [0002] A typical pulse-type solid-state laser achieves high average power by using end-pumped or side-pumped solid-state laser media and directly Q-switching in the resonator. Such a solution has a relatively simple structure, but it is very difficult to achieve a shorter pulse width and high-quality beam quality. In terms of achieving high-power laser output, the laser medium of the cubic solid material will seriously degrade the power of the laser output and the quality of the beam due to the huge temperature gradient between the center and the edge. Laser output with high average power is relatively very difficult. In the prior art, some integral mirrors with a certain included angle are used to form multi-pass amplification, but this structure is easy to cause self-excitation and cannot separate self-laser an...

AI Technical Summary

Problems solved by technology

The structure of such a scheme is relatively simple, but it is very difficult to achieve a shorter pulse width and high-quality beam quality

In terms of achieving high-power laser output, the laser medium of the cubic solid material will seriously degrade the power of the laser output and the quality of the beam due to the huge temperature gradient between the center and the edge. High average power laser output, relatively very difficult

In the prior art, some integral mirrors with a certain angle are used to form multi-pass amplification, but this structure is easy to cause self-excitation and cannot separate self-laser and amplified signal light

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