Beam breakup integral measurement on high-power laser chains.
We experimentally demonstrate the efficiency of a single-shot method to measure the beam breakup integral (B) accumulated across a high power chain. The technique uses spectrally shaped strongly chirped femtosecond pulses and takes advantage of time-to-spectral coupling generated by nonlinear effects. We performed B measurements on regenerative amplifiers (Ti:sapphire) and on the ALISE 200 J facility currently installed at CEA-CESTA (France).
Villate
Denis
D
Université Bordeaux1, CNRS, CEA: UMR 5107 Centre Lasers Intenses et Applications, 351 Cours de la Libération, 33405 Talence Cedex, France. villate@celia.u-bordeaux1.fr
Blanchot
Nathalie
N
Rouyer
Claude
C