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Theoretical Study of Thermal Lens Effect in Q-switched
Y.S. Nada, S.M.A. Maize, Y.H. Elbashar
The present work is a theoretical study for different thermal lens with different pumping repetition rates for a ceramic and a single crystal Yb:YAG laser. The calculations yield the thermal focal length without using additional optical elements. The effect of pumping energy and pump beam diameter on the thermal focal length is studied, and the stability of the cavity is investigated via the ABCD matrix method.
Keywords: Q-switched laser, microchip laser, thermal lens, ABCD matrix, ceramic laser