Abstract

Actively Q-switched self-frequency-doubling laser at 800 nm was first reported in an $\mathrm{Er}:\mathrm{Yb}:{\mathrm{YAl}}_3{({\mathrm{BO}}_3)}_4$ crystal by using an acousto-optical modulator. At incident pump power of 16 W and pulse repetition frequency of 1 kHz, 1600 nm fundamental pulse laser with energy of 130 μJ and width of 170 ns, and self-frequency-doubling 800 nm pulse laser with energy of 20 μJ and width of 96 ns were respectively achieved in a hemispherical resonator end-pumped by a 970 nm laser diode. Pulse characteristics of fundamental and self-frequency-doubling lasers at different pulse repetition frequencies were also investigated.

©2012 Optical Society of America

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