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Device used for cooling sheet-shaped laser gain media

A gain medium and sheet laser technology, which is applied to lasers, laser components, phonon exciters, etc., can solve the problems of inability to accurately control the working temperature of the gain medium, medium damage, etc.

Inactive Publication Date: 2013-12-25
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This cooling method cannot accurately control the working temperature of the gain medium due to the fluctuation of the temperature of the circulating water; moreover, the gain medium is exposed to the air. damage

Method used

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  • Device used for cooling sheet-shaped laser gain media
  • Device used for cooling sheet-shaped laser gain media

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Experimental program
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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] like figure 1 As shown, the sheet-shaped laser gain medium 1 and the thermistor are fixedly arranged on the heat sink 2, the front surface of the sheet-shaped laser gain medium 1 is coated with a laser antireflection film, and the rear surface is coated with a 0-degree total reflection film, and is connected with the heat sink. Shen 2 surface contact. The fixing method between the sheet-shaped laser gain medium 1 and the heat sink 2 can be mechanically fixed by a clamp, or can be welded by using metal indium as a solder. The heat sink 2 is fixedly connected with the vacuum chamber base 4 through long bolts, and the TEC (semiconductor cooler) 3 is arranged between the heat sink 2 and the vacuum chamber base 4, and is clamped by the two. The cooling surface of the TEC3 and the heat sink 2 contact, the heating surface is in cont...

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Abstract

The invention discloses a device used for cooling sheet-shaped laser gain media. The device comprises a heat sink, a TEC, a vacuum chamber shell, a vacuum chamber base and a covering board; the vacuum chamber shell is in a tube shape, the heat sink and the TEC are located inside the vacuum chamber shell, one end of the vacuum chamber shell is connected with the vacuum chamber base in a sealed mode, and the other end of the vacuum chamber shell is connected with the covering board in a sealed mode. The TEC is arranged on the side face of the vacuum chamber base, the heat sink is arranged on the refrigeration face of the TEC, the vacuum chamber shell is provided with a ventilation hole and an electric control conversion terminal, the ventilation hole is used for vacuum pumping, and the electric control conversion terminal is used for being connected with the TEC; the outer side face of the vacuum chamber base is provided with a water inlet hole and a water outlet hole, and a water channel communicated with the water inlet hole and the water outlet hole is arranged inside the vacuum chamber base. After the structure is adopted, heat produced by the sheet-shaped laser gain media is taken away by circulation cooling water flowing through the vacuum chamber base, therefore, work temperature of the sheet-shaped laser gain media can be accurately controlled, and meanwhile condensation water on surfaces of the sheet-shaped laser gain media is prevented.

Description

technical field [0001] The invention relates to a device for cooling a sheet-shaped laser gain medium, comprising a vacuum chamber base, a TEC (semiconductor refrigerator) disposed on the vacuum chamber base, a heat sink disposed on the TEC, and a sealed connection with the vacuum chamber base The vacuum chamber shell and the cover plate which are sealed with the vacuum chamber shell. Background technique [0002] Due to the advantages of compact structure, high conversion efficiency, and good stability, all-solid-state lasers with high power and high beam quality have great application requirements in industrial processing and high-field laser physics. In such a laser system, the cooling effect on the laser gain medium directly affects the output laser quality. During the optical pumping process of the solid-state laser gain medium, due to quantum defects and other reasons, the gain medium will generate a large amount of heat energy, resulting in a temperature gradient ins...

Claims

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Application Information

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IPC IPC(8): H01S3/042
Inventor 赵环
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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