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A Linearly-Polarized Cesium Vapor Laser with Fundamental Mode Output and Low Threshold
Li Zhi Yong
Tan Rong Qing
Huang Wei
Xu Cheng
Chinese Physics Letters, 2014, 31(4): 044202.
We report a cesium vapor laser with fundamental mode output and a wavelength of 894 nm. The laser is pumped by a laser diode array with an external cavity of a holographic grating by using Littrow's structure. A slope efficiency of 22.4% is obtained by using a pumping source with a linewidth of 0.26 nm and 80 kPa methane as the buffer gas. The threshold pumping power is 1.56 W.
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