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29 November 2012 Gas dynamic effect in high energy fluid diode pumped alkali vapor laser
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Abstract
In this paper, a simple one dimensional heated flow analysis model and 3-D finite volume method (FVM) is set to discuss the real gas dynamic effect in FDPAL. We found that huge amount of waste heat deposited in extreme compact volume size will notably affect active medium’s local velocity, temperature and the density distribution along flow direction, and would accordingly affect pump beam’s absorption and change optimized lasing conditions, hence, a comprehensive model incorporate gas dynamic effect should be built for DPAL’s next stage development. We further proposed that expanding fluid channel may be a choice to increase optical thickness along pumping direction and alleviate this effect.
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Yao Xu, Wenyu Li, Hongyan Wang, Zining Yang, and Xiaojun Xu "Gas dynamic effect in high energy fluid diode pumped alkali vapor laser", Proc. SPIE 8551, High-Power Lasers and Applications VI, 855103 (29 November 2012); https://doi.org/10.1117/12.999275
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