High power inner cavity frequency doubling laser

A frequency-doubling laser and high-power technology, applied in the laser field, can solve the problems of mode matching affecting laser output power and its stability, light-to-light conversion efficiency and beam quality, so as to overcome the change of oscillation light mode, improve power and Its stability and the effect of improving the efficiency of frequency doubling light

Inactive Publication Date: 2007-09-12
ZHENGZHOU UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems in the above-mentioned prior art, such as the thermal effect of the laser medium and the frequency doubling crystal, the "green light problem", and the mode matching between the oscillating light in the resonator and the pumping light, which seriously affect the laser. Due to the problems of output power and its stability, light-to-light conversion efficiency and beam quality, a new laser diode-pumped high-power intracavity frequency-doubled laser is specially designed.

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings (embodiments), but it does not limit the present invention.

[0036] As shown in Figure 1: the intracavity frequency-multiplied laser of this laser diode pump comprises pumping source (7) and (8), optical coupling system (9) and (10), by total reflection mirror (1), (2 ) and (4), the thermally stable folded resonator composed of the output mirror (3), and the laser medium (5) placed between the total reflection mirror (1) and (2) and placed between the output mirror (3) and The frequency doubling crystal (6) between the total reflection mirrors (4), the total reflection mirror (1) is a plano-convex mirror, the total reflection mirror (2) is a plano-concave mirror or a plano-planar mirror, and the output mirror (3) is a plano-convex mirror , the total reflection mirror (4) is a plano-concave mirror; the plano-convex total reflection mirror (1) is placed relative to the nor...

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Abstract

A high power inner cavity frequency multiplier laser includes a pump source, an optical couple system, a thermal-stable folding resonator composed of three total reflectors (1, 2 and 4) and an output mirror, a laser medium between reflectors 1 and 2 and a multiple crystal between the output mirror and the reflector 4 characterizing that the reflector 1 is a plane-convex lens, 2 is a plane-concave lens or a plane-plane lens, the output mirror and the reflector 4 are plane-concave lenses, the plane-convex total reflectors 1 and 4 are placed in normal incidence against the oscillation light and the lens 2 and output mirror 3 are placed in oblique incidence.

Description

(1) Technical field [0001] The invention belongs to the field of laser technology, in particular to a high-power intracavity frequency-doubled laser pumped by a laser diode, which is suitable for laser full-color display, pumping source of other lasers, optical storage, laser marking, laser scribing, Applications in thermal imaging of printing plates, laser medical treatment, scientific research and entertainment. (2) Background technology [0002] Watt-level continuous red, green, and blue lasers are widely used in the fields of laser full-color display, pump source of other lasers, optical storage, laser marking, laser scribing, thermal imaging of printing plates, laser medical treatment, scientific research and entertainment, etc. important application. CW intracavity frequency-doubled lasers pumped by laser diodes have become the most suitable for realizing the above-mentioned red, green and blue lasers due to their advantages of high power, high efficiency, high beam q...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/08H01S3/109
Inventor 郑义张玉萍姚建铨刘群梁兰菊张会云
Owner ZHENGZHOU UNIV
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