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Dual-temperature working all-solid-state Nd: YAG laser

A YAG laser, all-solid-state technology, applied in the direction of lasers, laser parts, laser parts, etc., can solve the problems of liquid cooling, TEC cooling efficiency decline, and can not be dissipated

Pending Publication Date: 2021-05-18
SOUTH WEST INST OF TECHN PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is troublesome to use liquid cooling. Using TEC thermoelectric cooler can control the temperature well at low temperature or normal temperature, but at high temperature, because the temperature of the hot end cannot be dissipated, the cooling efficiency of TEC drops sharply, and at the same time, it also generates a lot of heat. , the temperature can't be controlled at all
At the same time, it will increase the size, weight and energy consumption of the system

Method used

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Embodiment Construction

[0020] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 2 As shown, the dual-temperature working all-solid-state Nd:YAG laser of the present invention includes: Nd:YAG laser gain medium 1, laser diode array 2, heater 3, Q switch 4, total reflection mirror 5, output mirror 6; total reflection mirror 5. Nd:YAG laser gain medium 1, Q-switching switch 4, and output mirror 6 are coaxially arranged from front to back to form a flat resonant cavity. Laser diode array 2 is used as a pump source and arranged outside Nd:YAG laser gain medium 1 , the heater 3 is arranged outside the laser diode array 2 .

[0022] A temperature probe 7 is arranged on the Nd:YAG laser gain medium 1 for measuring the temperature of the Nd:YAG laser gain medium 1 .

[0023] The las...

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Abstract

The invention discloses a dual-temperature working all-solid-state Nd: YAG laser, which comprises an Nd: YAG laser gain medium, a pumping source, a heater, a Q-switching device and a laser resonant cavity mirror, the laser resonant cavity mirror, the Nd: YAG laser gain medium and the Q-switched device form a resonant cavity; and the pumping source pumps laser into the resonant cavity, and the heater heats the pumping source. Compared with the previous high-temperature work, the two-stage temperature control method has the advantages that the temperature rise span is smaller, the required preheating time is greatly shortened, and the two-stage temperature control method is very useful in many applications, and particularly has wide application requirements on military laser ranging, laser irradiator, laser ranging / irradiation all-in-one machines and the like.

Description

technical field [0001] The invention belongs to the field of laser technology, and relates to a diode-pumped Nd:YAG laser with segmental constant temperature operation, specifically a dual-temperature all-solid-state Nd:YAG laser, which can be used for military laser ranging, laser irradiators, and laser measurement Distance / irradiation all-in-one machine. Background technique [0002] Diode-pumped solid-state lasers (also known as all-solid-state lasers) are gradually replacing flashlamp-pumped solid-state lasers in many fields due to their high efficiency, long life, and high reliability. [0003] The usual diode-pumped Nd:YAG laser uses the 808nm absorption peak of Nd:YAG, and uses a laser diode with a corresponding wavelength as the pumping source. Since the wavelength of the laser diode will drift with the change of temperature (0.25~0.3nm / ℃), and the absorption bandwidth of the laser gain medium is limited (the absorption bandwidth of Nd:YAG is about 3nm), the pump so...

Claims

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Application Information

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IPC IPC(8): H01S3/042H01S3/06H01S3/0941H01S3/11H01S3/115H01S3/117
CPCH01S3/02H01S3/0602H01S3/0941H01S3/11H01S3/115H01S3/117
Inventor 金锋吴振宇刘亚萍沈琪皓陈仁
Owner SOUTH WEST INST OF TECHN PHYSICS
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