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Thermal focal length of Nd: YLF laser rod crystal at 797nm and 792nm diode-end pump

Khalid A. Yahya, Oday A. Hussein and Ola H. Mustafa

A theoretical studied are carried out to study the thermal focal length in a-cut Nd: YLF laser rod crystal at 20W Diode- end-pumped. Different thermal lensing effects for p and s polarizations have been theoretically analyzed .Our results show that the values for thermal focal length are positive for s polarization and negative values for p polarization for end pump laser wavelength 797nm and 792 nm respectively