Experimental Investigation Of Laser Diode Side-Pumped Ultra-Short Pulse Regenerative Amplifier

A ultrashort pulse Nd:YAG rod gain medium regenerative amplifier side-pumped by A laser diode array was studied. The SESAM mode locking fiber seed pulses with lops pulse duration lnJ single pulse energy 50 MHz repetition-rate and the wavelength of 1064 nm, was amplified to 1 mJ at 1 kHz by our regenerative amplifier, corresponding to a peak power of 0.1 GW, with the maximum amplification about 3.3 x10(6). And when the repetition rate changed to 10 kHz, an average power of 6 W was obtained, corresponding to an amplification of 2 x10(6). The repetition-rate to period doubling of regenerative amplifier pulse was experimentally studied.