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

A side-pumped, all-solid-state technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of reducing the reliability of lasers, limiting the scope of application, and low output power of green light, achieving simple structure, The effect of large fundamental mode volume and improved frequency doubling efficiency

Inactive Publication Date: 2007-07-18
SHAANXI XIDA KELIAO PHOTOELECTRIC TECH
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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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  • Continuous green laser with LD side pumping full solid-state high power high efficient

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Embodiment Construction

[0015] Referring to the accompanying drawings, the present invention is provided with a laser crystal 2 and a plano-concave folding mirror 4 successively on the horizontal optical path of the incident plane total reflection mirror 1, and the side of the laser crystal 2 is provided with a high-power semiconductor pump assembly 3; A frequency doubling crystal 5 and a plano-concave full reflection mirror 6 are sequentially arranged on the optical path drawn from the mirror 4 .

[0016] LD side-pumped all-solid-state high-power and high-efficiency CW green laser consists of a series of semiconductor devices placed at equal intervals on the side of the laser crystal 2 to form a high-power semiconductor pump component 3, forming a side pumping method, and the laser crystal 2 absorbs the pumping After the light energy, stimulated fluorescence radiation is generated, and the radiated fluorescence oscillates and amplifies in the resonant cavity composed of the planar total reflection mi...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/05H01S3/08H01S3/16H01S3/109H01S3/0941H01S3/042H01S3/00
Inventor 白晋涛任兆玉
Owner SHAANXI XIDA KELIAO PHOTOELECTRIC TECH
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