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Solid laser dielectric dynamic radiator

A laser medium, solid-state laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of increasing the loss of the resonant cavity, the increase of the maximum temperature of the non-uniform temperature field, and the large heat load, etc. Improved quality factor, improved output beam quality, reduced thermal issues

Inactive Publication Date: 2009-01-21
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are many disadvantages in this static heat dissipation method of the laser medium, such as: due to the low thermal conductivity of the medium, the heat load per unit volume inside the medium is relatively large, and the maximum temperature rise of the static non-uniform temperature field is relatively large
The strong thermal lens effect and thermal stress birefringence caused by the thermal effect of the laser medium increase the loss of the resonator and affect the stability of the resonator and the polarization state of the oscillating laser in the cavity
This static heat dissipation method of the laser medium also limits the pumping power of the laser diode, which in turn affects the output power of the laser and the quality of the output beam
Therefore, the static heat dissipation method of the laser medium can no longer meet the needs of the current high-power laser diode pumping

Method used

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Embodiment Construction

[0021] Firstly, the heat sink is designed according to the size of the laser medium; secondly, the laser medium is wrapped with indium film and placed in the heat sink, and the surrounding temperature of the laser medium is kept relatively stable by cooling the heat sink; finally, the heat sink is installed in a pre-designed On the two-dimensional motion mechanism, the two-dimensional motion mechanism is controlled by the servo system to move. The servo system can be connected with the computer, and various translational movements can be controlled in the plane of the two axes through computer programming, such as: circular translation, horizontal translation, vertical translation or other arbitrary forms of translation.

[0022] Below in conjunction with accompanying drawing, the content of the present utility model is further described:

[0023] see figure 1 , figure 2 The prior art laser medium cooling device includes a laser medium (1) and a heat sink (2). Among them, ...

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Abstract

This invention relates to a solid laser medium dynamic radiator including a laser medium and heat sink, in which, the medium is placed in the heat sink and mounted on a 2-D movement unit to keep them at a moving state, which can weak the influence of photoelastic effect, heat deformation and thermostress double refraction of the solid laser medium caused by non-uniform rising temperature to the laser, increases energy density of pump light in the medium, the output power and its beam quality.

Description

technical field [0001] The invention relates to a solid-state laser medium dynamic cooling device, and the invention is applied to all solid-state lasers. Background technique [0002] The all-solid-state laser pumped by laser diodes has the characteristics of high efficiency, compact structure, long life, high beam quality and stable performance. It is used in laser drilling, welding, cutting, fine-tuning, scribing, marking, heat treatment; Laser surgery; laser pollution measurement and environmental monitoring; holography, laser storage; underwater detection, laser communication, laser spectrum analysis, laser ranging, laser radar, remote sensing, communication, target designation, guidance, glare control and inertial confinement fusion and Stage effects, long-distance spotlights and other fields have a wide range of applications. [0003] However, the laser medium absorbs the pump light energy of the laser diode, causing the number of activated particles to invert and ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/042
Inventor 甘安生李隆史彭
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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