Effect of thermal flow field on the output field distribution of liquid lasers

WANG Peng-fei; MA Zai-ru; LI Mi; SONG Ying-song; WEI Yong-tao; ZHANG Yu-ming; FENG Guo-ying; CHEN Jian-guo

doi:10.3969/j.issn.1001-3806.2010.06.037

In order to study the effect of liquid velocity on laser output field,the output characteristics for hard-edge positive branch unstable resonators in transverse-flow liquid lasers were simulated with finite element difference method algorithm. The thermal flow field for different liquid velocities was analyzed by means of finite element method.The beam quality and laser spot center (peak intensity) were studied when the pump light was plane wave.The offset of spot center was observed in the experiment.The result is that the laser quality is tending to the constant and the laser spot center is biased to the pumped side when the liquid velocity is larger than 1m/s.

Effect of thermal flow field on the output field distribution of liquid lasers

Corresponding author: CHEN Jian-guo, optics_lab@163.com

1. College of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China;

2. Institute of Applied Physics, Xihua University, Chengdu 610039, China;

3. Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900, China;

4. College of Architecture and Environmental, Sichuan University, Chengdu 610064, China

Received Date: 2009-11-16

Accepted Date: 2010-03-11

Available Online: 2010-11-25

Abstract: In order to study the effect of liquid velocity on laser output field,the output characteristics for hard-edge positive branch unstable resonators in transverse-flow liquid lasers were simulated with finite element difference method algorithm. The thermal flow field for different liquid velocities was analyzed by means of finite element method.The beam quality and laser spot center (peak intensity) were studied when the pump light was plane wave.The offset of spot center was observed in the experiment.The result is that the laser quality is tending to the constant and the laser spot center is biased to the pumped side when the liquid velocity is larger than 1m/s.

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Reference (12)

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Effect of thermal flow field on the output field distribution of liquid lasers

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通讯作者: 陈斌, bchen63@163.com

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