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22 April 2016 Wave optics simulation of diode pumped alkali laser (DPAL)
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Abstract
A numerical simulation code for a diode pumped alkali laser (DPAL) was developed. The code employs the Fresnel- Kirchhoff diffraction integral for both laser mode and pump light propagations. A three-dimensional rate equation set was developed to determine the local gain. The spectral divergence of the pump beam was represented by a series of monochromatic beams with different wavelengths. The calculated results showed an excellent agreements with relevant experimental results. It was found that the main channel of the pump power drain is the spontaneous emission from the upper level of the lasing transition.
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Masamori Endo, Ryuji Nagaoka, Hiroki Nagaoka, Toru Nagai, and Fumio Wani "Wave optics simulation of diode pumped alkali laser (DPAL)", Proc. SPIE 9729, High Energy/Average Power Lasers and Intense Beam Applications IX, 972907 (22 April 2016); https://doi.org/10.1117/12.2208979
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