High average power 88 W OPCPA system for high-repetition-rate experiments at the LCLS x-ray free-electron laser.
Opt Lett
; 44(5): 1257-1260, 2019 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-30821762
ABSTRACT
We present a 100 kHz, sub-20 fs optical parametric chirped-pulse amplifier (OPCPA) system delivering 88.6 W average power at a center wavelength of 800 nm. The seed pulses are derived from the pump laser via white-light continuum generation and are amplified in three non-collinear OPCPA stages. The final two high-power stages are pumped with a 661 W YbYAG InnoSlab amplifier. A simple and robust design is used for the OPCPA system to avoid thermal effects and enhance long-term stability, resulting in excellent beam quality and high conversion efficiency. To the best of our knowledge, this is the highest average power OPCPA system reported to date.
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2019
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Article