Abstract
A side-pumping configuration with six laser diode arrays is designed for the diode pumped alkali vapor lasers. A physical model is established to describe the thermal effects in a high-power side-pumped cesium vapor laser. Distributions of the radial temperature and the optical path difference in the cesium vapor cell are simulated and analyzed. Influences of the pump power, the pump beam waist, and the cell temperature on the thermal focal length are calculated and discussed. We propose a very simple and promising design of a scheme to compensate for the thermal lens of the cesium vapor laser. The compensation results are also presented.
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