Abstract
Low-threshold, efficient optical parametric generation at is demonstrated using nonlinear crystal pumped by 150 ps Raman shifted pump pulses at 1198 nm in noncritical configuration at 1 kHz repetition rate. Maximum single pulse idler energy of 6 μJ and total conversion efficiency of 30% are achieved. Seeding at the signal wavelength with a distributed feedback laser diode enables fold narrowing of the bandwidths down to , resulting in a Fourier product of for the long signal (1615 nm) and idler (4.64 μm) pulses.
© 2013 Optical Society of America
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