Abstract
The present work aims to develop a model to mitigate the thermal lensing effects in laser diode-pumped solid-state laser systems. Using an annular-shaped beam, a virtual solid-state laser with a cylindrical form was simulated in double-end pum** geometry. At a pump ratio of (0.6), the results demonstrate that a pump light with an annular shape has an even better distribution for reducing the thermal lensing effect with a slope of 0.09 m−1/W as compared to 0.07 m−1/W slope for the top-hat distribution. Additionally, the annular-shaped pump beam provides the advantage of uniform pum** across the gain medium, which improves the overall efficiency and performance of the laser.
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Khazal, Z.A., Ibrahim, R.K. & AbdulRazzaq, M.J. Annular-shaped beam for the mitigation of thermal lensing effects in Nd:YAG solid-state lasers. J Opt 53, 2301–2306 (2024). https://doi.org/10.1007/s12596-023-01378-5
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DOI: https://doi.org/10.1007/s12596-023-01378-5