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High-power, small-sized, water cooling-free and side pump slab laser device

A laser device, no water cooling technology, used in laser cooling devices, lasers, laser parts and other directions, which can solve the problems of poor heat dissipation effect and heavy weight.

Active Publication Date: 2019-05-03
西安中科洺光测控技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-power small water-cooled side-pump slab laser device, which solves the problems of the existing side-pumped lasers with large volume, weight and poor heat dissipation effect

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  • High-power, small-sized, water cooling-free and side pump slab laser device
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  • High-power, small-sized, water cooling-free and side pump slab laser device

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] The structure of a high-power small water-cooled side-pump slab laser device of the present invention is as follows: figure 1 As shown, a total reflection mirror 1, a Q-switching unit 2, a polarizer 3, a pump module, and an output coupling mirror 12 are sequentially arranged on the same axis as the laser beam propagation direction of the device; the total reflection mirror 1 and the output coupling mirror 12 form a resonance Cavity, and the total reflection mirror 1 is a 1064nm total reflection mirror; the Q-switching unit 2 is either an active Q-switching crystal or a voltage-back photoelectric Q switch with a feedback control circuit.

[0020] Such as figure 2 As shown, the pump module includes a laser crystal seat 6, along which a lath-shaped laser crystal 7 is arranged inside the laser crystal seat 6, and two corresponding end fa...

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Abstract

The invention discloses a high-power, small-sized, water cooling-free and side pump slab laser device. A total reflector, a Q switch unit, a polarizer, a pumping module, and an output coupling mirrorare sequentially and coaxially disposed in the direction of laser beam propagation of the device; the total reflector and the output coupling mirror form a resonant cavity, and the total reflector isthe total reflector with 1064 nm; and the Q switch unit is any one of an active Q switch crystal or a voltage-decreased photoelectric Q switch equipped with a feedback control circuit. In the high-power, small-sized, water cooling-free and side pump slab laser device, except non-pumped surface heat dissipation on both faces, two pump faces are also subjected to staggered heat dissipation by a gold-plated copper reflection block, and so, the uniformity of heat dissipation of a double-sided pump laser crystal is ensured, the thermal lens effect of the double-sided pump laser crystal is reduced,wavefront edge distortion of the laser device is effectively improved, and the laser device performs temperature control by adopting a TEC thermoelectric cooler, so that the weight of the laser deviceis effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of laser devices, and in particular relates to a high-power, small-scale water-cooled side-pump slab laser device. Background technique [0002] Compared with round rod lasers, side-pumped slab lasers are widely used due to the large cooling area of ​​slab lasers. Existing slab lasers mostly use zigzag optical paths to overcome the heat dissipation limit of rod lasers, but this device also The optical path length of the fluorescence is increased, and there will be a strong ASE under the gain condition, resulting in excessive distortion of the edge of the transmitted wavefront of the laser slab. Moreover, most of the existing side-pumped lasers are water-cooled and too large to be used in laser ranging systems; therefore, it is imperative to develop a laser device with a small size, light weight, and good heat dissipation. Contents of the invention [0003] The purpose of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/04H01S3/042H01S3/0941
Inventor 牛霞唐利孬王俊清刘二豪
Owner 西安中科洺光测控技术有限公司
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