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Microbead immersed liquid laser and thermal management method thereof

A microbead immersion and laser technology, applied in laser parts, laser cooling devices, etc., can solve problems such as high-energy damage of working medium and inability to effectively solve thermal efficiency, etc., so as to improve optical performance, improve thermal management efficiency, and improve laser Effects of output power and frequency

Inactive Publication Date: 2014-07-02
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The present invention proposes a micro-bead immersion liquid laser and its thermal management method, mainly aiming at problems such as thermal efficiency and high-energy damage of the working medium that cannot be effectively solved in the prior art

Method used

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  • Microbead immersed liquid laser and thermal management method thereof
  • Microbead immersed liquid laser and thermal management method thereof

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Embodiment Construction

[0022] Principle of the present invention is as follows:

[0023] The solid laser gain medium with excellent laser performance is optically processed to obtain microbeads, and the microbeads are fixed in the fluorescent flow cell. The refractive index matching liquid flows between the microbeads and the four walls of the fluorescent flow cell, and the gain is affected by the circulating flow of the matching liquid. The direct cooling of the medium removes the waste heat generated during the pumping process, and finally realizes effective heat management during the working process of the laser.

[0024] The microbeads used in the present invention are glass or crystal materials, such as phosphate glass doped with rare earth ions or Re:YAG crystals, etc., which are optically processed into microbeads with a diameter of 1-40 mm.

[0025] The fluorescent flow cell used in the present invention is made of quartz or glass, and the four sides are light-transmitting windows. The flow ...

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Abstract

The invention belongs to the technical field of lasers and particularly relates to a microbead immersed liquid laser and a thermal management method thereof. The method is characterized in that a rare earth doped solid laser gain medium with excellent laser performance is subjected to optical processing to obtain microbeads, the microbeads are fixed in a fluorescent flow cell and completely immersed in matching fluid, and index matching fluid flows among the microbeads and four walls of the fluorescent flow cell to directly cool the gain medium and take away waste heat generated during pumping. The method has the advantages of ceaselessness, real time and high efficiency in cooling, thermal management efficiency and extreme thermal power load can be greatly improved, and accordingly higher pumping power is allowed while laser output power and efficiency are greatly improved. Moreover, the microbead immersed liquid laser and the thermal management method thereof provide novel application approaches to laser crystals which are excellent in optical performance but not in extensive use due to dimension limits, and has wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of liquid lasers, and in particular relates to a microbead immersion liquid laser and a thermal management method thereof. Background technique [0002] With the development of modern science and technology, high-power, high-repetition, and intense laser technology has become an important hot spot. At the same time, it also puts forward higher requirements for laser technology: low output threshold, good beam quality, high average power output, High energy and high repetition rates are used. The ultra-powerful laser system required for high-energy nuclear fusion simulation experiments is not only the hope of new energy sources for human beings in the future, but also plays an extremely important role in national defense. [0003] The high repetition intensity laser systems that have been developed and are currently being developed, except for some fields that are exploring gas lasers, most of the rest use s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/04
Inventor 彭波韦玮佘江波赵朋飞
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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