The amplification of picosecond pulses at high repetition rates was demonstrated through the coherent addition of successive pulses of a mode-locked train. Amplification greater than 30 times was obtained at a repetition rate of 253 kHz, boosting the 5.3-nJ pulses from a commercial mode-locked picosecond Ti:sapphire laser to pulse energies of more than 150 nJ. It was found that with proper dispersion compensation the current approach can be extended into the sub-20-fs regime.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics