High Power Laser Science and Engineering, 2016, 4 (4): 04000e38, Published Online: Jan. 19, 2017
Experimental evaluation of temperature distribution of a vapor cell using a Hilbert transform procedure 
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DPAL DPAL Hilbert transform Hilbert transform temperature distribution temperature distribution vapor cell vapor cell
Abstract
A diode-pumped alkali vapor laser (DPAL) is one of the most promising candidates of the next-generation high-powered laser source. As the saturated number density of alkali vapor is highly dependent on the temperature inside a vapor cell, the temperature distribution in the cross-section of a cell will greatly affect the homogeneity of a laser medium and the output characteristics of a DPAL. In this paper, we developed an algorithm based on the regime concluding quasi-Hilbert transform to evaluate the phase aberration of a wavefront when the probe beam passes through the vapor cell placed in one arm of a Mach–Zehnder interference setup. According to the theoretical algorithm, we deduced the temperature distribution of a cesium vapor cell for different heating conditions. The study is thought to be useful for development of a high-powered laser.
He Cai, You Wang, Ming Gao, Wei Zhang, Zhigang Jiang, Juhong Han, Guofei An, Shunyan Wang, Liangping Xue, Hongyuan Wang, Jie Zhou. Experimental evaluation of temperature distribution of a vapor cell using a Hilbert transform procedure[J]. High Power Laser Science and Engineering, 2016, 4(4): 04000e38.
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