Abstract
We report subnanosecond passively Q-switched 1.57μm laser, based on YAG:Nd/YAG:Cr4+ microchip with intracavity KTP OPA. Pumped by 18W fiber coupled laser diode array, this laser produced 200pJ, 850ps pulses with peak power 235kW.
© 2005 Optical Society of America
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