Abstract
The diode-end-pumped passively Q-switched and Q-switched mode-locked Yb:Ca2.85Ta1.80Ga3.10O12 (CTGG) lasers with V3+:YAG as the saturable absorber have been demonstrated. In the Q-switched regime, an average output power of 1.6W was obtained under the absorbed pump power of 8.6W. The shortest pulse width was 36.8ns with a pulse repetition rate of 30kHz, corresponding to a single pulse energy of 53μJ and a peak power of 1.44kW, respectively. Moreover, smooth shifts observed in output wavelength from 1034.4 to 1039.3nm with the increased absorbed pump power were attributed to the thermal effects. For the Q-switched mode-locking operation, the average output power of 638mW was obtained with a pulse repetition rate of 38MHz.
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