Abstract
We report on the passively Q-switched mode-locking of a quasi-cw (QCW) diode pumped Nd:GdVO4 laser with Cr4+:YAG saturable absorber. We show that by using the QCW pumping high quality Q-switched mode-locking can be easily obtained in the laser even with a simple two-mirror laser cavity configuration. Mode locked pulses with pulse width of about 1ps at repetition rate variable from 500MHz to 1GHz has been obtained.
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