Regenerative amplification of temporally compressed picosecond pulses at 2 kHz

Abstract
Regenerative amplification of temporally compressed picosecond pulses is demonstrated in neodymium: yttrium aluminum garnet (Nd:YAG) at 2 kHz. The seed to the regenerative amplifier originates from a chirped cw mode-locked Nd:YAG laser pulse. The initial 100 nJ ∼80 ps full width at half-maximum pulses are amplified and temporally compressed to ∼200 μJ/pulse at a repetition rate of 2 kHz with a pulse width of 12 ps.