Multiple frequency one-way overlapped output standard continuous green light laser inside full solid multi-cavity combination cavity

Abstract

The present invention provides a laser, especially a frequency doubling single direction overlapping output quasi-cw green laser in a full-solid multi-cavity combined cavity, composed of three or more F-P, each F-P adopts flat-concave cavity structure, F-P adopts side pumped Nd:YAG crystal of the semiconductor laser pumped component having same model, each F-P is optimized design by computer simulation, a stably rotatable 1064nm fundamental frequency laser is formed in the F-P, each F-P obtains 532nm quasi-cw green laser by the audio-optical Q switching and frequency doubling technology, overlapping in the several frequency doubling crystals, reflecting by the harmonic reflector, obtaining secondary frequency doubling and output together. The laser does not need any thermal lens and thermal double refraction compensation element, having high output power, better beam quality, high doubling efficiency, better stability, widely used for fields of laser material process, optical storage, laser full color display, laser medicine, scientific research, communication, defense and amusement.

Description

technical field [0001] The invention belongs to the field of laser technology, in particular to a design scheme of an all-solid-state high-power multi-cavity combination intracavity frequency-doubling unidirectional overlapping output quasi-continuous green laser Background technique [0002] Since the first ruby ​​laser came out in the 1960s, all kinds of lasers and laser technology have developed extremely rapidly, especially the development of high-power all-solid-state solid-state lasers is particularly eye-catching, with its large output energy, high peak power, and higher than CO 2 Gas lasers are widely used in laser material processing, optical storage, laser full-color display, laser medicine, scientific research, communication, national defense, entertainment and other fields due to their short wavelength, reliable operation, and long service life. At present, multi-rod serial connection technology is the main method to improve the output power of all-solid-state la...

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Problems solved by technology

[0004] In order to overcome the disadvantages and deficiencies such as low light-to-light conversion efficiency, unobvious thermal lens effect, unstable laser output power, and poor beam quality in the above-mentioned prior art, the technical solution of the present invention is solved in this way: all-solid-state multi-cavity Combined intracavity frequency doubling unidirectional overlapping output quasi-continuous green laser, including a two-dimensional adjustment frame, which is special in that it consists of a horizontal linear sub-cavity and at least two independent inverted L-shaped sub-cavities and a two-dimensional adjustment frame Composed of fixed connections, the horizontal linear sub-cavity includes an incident plano-concave total reflection end mirror, and an acousto-optic Q-switched crystal, a laser crystal, an LD side pump source, The second harmonic mirror, the crystal with anti-gray trace characteristics, the plane output mirror and the two-dimensional adjustment frame are fixedly connected; the independent inverted L-shaped sub-cavity includes the fundamental frequency light full reflection mirror in the horizontal direction, and has anti-gray Trace characteristic crystal, planar output mirror, laser crystal, LD side pump source, acousto-optic Q-switching crystal flat-concave total reflection end mirror and two-dimensional adjustment frame are fixed in sequence on the vertical lower side of the fundamental frequency optical total reflection mirror connect

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