Abstract
A mode-locked Ti:sapphire regenerative amplifier system pumped with a single argon ion laser produces /spl mu/J energy 100 femtosecond pulses of 800 nm wavelength at 250 kHz repetition rate. Pumping a Type II BaB/sub 2/O/sub 4/ (BBO) optical parametric amplifiers (OPA) with this output generates 500 nJ infrared pulses and continuous tuning from 1.1 /spl mu/m to beyond 2.5 /spl mu/m. Difference frequency generation of the signal idler output from this OPA source in AgGaS/sub 2/ produces 60 nJ mid infrared pulses and continuous tuning from 2.4 /spl mu/m to beyond 12 /spl mu/m.
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