Repetition rate increase and diffraction-limited focal spots for a nonthermal-equilibrium 100-TW Nd:glass laser chain by use of adaptive optics.
Dynamic wave-front correction is applied before each shot on a 100-TW, 30-J/300-fs high-power laser facility by use of an adaptive-optics system. This system allows us to increase the repetition rate of high-energy lasers while maintaining excellent and constant beam focusability with a Strehl ratio of >0.75 despite the amplifiers' not being in thermal equilibrium. The best results in terms of the highest Strehl ratio and intensities are obtained when locking the system on wave-front sensing after pulse recompression.
Wattellier
B
B
Laboratoire pour l'Utilisation des Lasers Intenses, Centre Nationale de la Recherche Scientifique, Ecole Polytechnique, Commissariat à l'Energie Atomique, France.
Fuchs
J
J
Zou
J P
JP
Abdeli
K
K
Pépin
H
H
Haefner
C
C