Abstract

A laser diode pumped Q-switched 935nm Nd-doped Ca3(NbGa)2xGa3O12 (Nd:CNGG) laser using a Cr,Nd:YAG crystal as a saturable absorber is demonstrated for the first time to our knowledge. An average output power of 74mW for 935nm Q-switched pulses and a repetition rate of 3.788kHz are obtained. The pulse width is measured to be 2633ns under different pump powers. Some theoretical calculations are made to discuss the selective excitation of Nd3+ ion in the Nd:CNGG crystal.

© 2009 Optical Society of America

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