Optimization of output power on far infrared waveguide DCN laser by continuous glow discharge

doi:10.16568/j.0254-6086.201602005

NUCLEAR FUSION AND PLASMA PHYSICS ›› 2016, Vol. 36 ›› Issue (2): 126-130.DOI: 10.16568/j.0254-6086.201602005

• Plasma Physics • Previous Articles Next Articles

Optimization of output power on far infrared waveguide DCN laser by continuous glow discharge

WEI Xue-chao, SHEN Jie, JIE Yin-xian, ZENG Long, LIU Hai-qing

(Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031)

Online:2016-06-15 Published:2016-06-14

连续辉光放电波导型远红外氘化氰激光器输出性能优化

魏学朝，沈洁，揭银先*，曾龙，刘海庆

(中国科学院等离子体物理研究所，合肥 230031)

作者简介:魏学朝(1988-)，男，安徽合肥人，学士，实验师，主要从事远红外DCN 气体激光器方面的研究。
基金资助:
国家自然科学基金(11475221)

Abstract

Abstract:

The far infrared laser interferometer on EAST, DCN laser, is introduced. Helium, CD₄, D₂ and N₂ are used in the laser. The output power is optimized by changing the supply current, gas pressure and gas ratio. Experimental results show that the best parameter can be achieved with the gas ratio He: CD₄: D₂: N₂=2: 3: 5: 3 and gas pressure 32Pa. The output power increases with current increase.

Key words: DCN 激光器, 输出功率优化, 气体配比, 工作压强

摘要：

简要介绍了EAST 装置远红外激光干涉仪光源——DCN 激光器的工作原理、结构和相关改进。DCN 激光器采用He、CD₄、D₂ 和N₂ 4 种工作气体。实验过程中，通过调节气体压强和阴极电流、改变各种工作气体配比等手段优化DCN 激光器输出功率。实验结果显示：输出功率随电流的增大会达到饱和，在电流为1.0A 输出功率达到最大；输出功率随压强先增大后减小，在压强为32Pa 时达到最大值；工作气体的最佳配比为He: CD₄: D₂: N₂=2: 3: 5: 3。

关键词: DCN 激光器, 输出功率优化, 气体配比, 工作压强

CLC Number:

TN248.2

WEI Xue-chao, SHEN Jie, JIE Yin-xian, ZENG Long, LIU Hai-qing. Optimization of output power on far infrared waveguide DCN laser by continuous glow discharge[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2016, 36(2): 126-130.

魏学朝，沈洁，揭银先*，曾龙，刘海庆. 连续辉光放电波导型远红外氘化氰激光器输出性能优化[J]. 核聚变与等离子体物理, 2016, 36(2): 126-130.

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Optimization of output power on far infrared waveguide DCN laser by continuous glow discharge

连续辉光放电波导型远红外氘化氰激光器输出性能优化

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