Abstract
We present what we believe to be the first true three-level laser based on a Nd-doped crystal. From the laser transition, the lower laser level being the ground state, emission at in has been obtained with diode pumping. Up to of power has been achieved in cw operation and per pulse in the Q-switched regime. Intracavity second-harmonic generation in the pulsed regime is also demonstrated with of average output power at , corresponding to an energy of per pulse.
© 2006 Optical Society of America
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