Abstract

Based on an analytical model for the impact of SPM on stretched ultrashort pulses, the influence of SPM is experimentally controlled in a fiber-based CPA-system. Nearly transform-limited pulses with energies as high as 1 mJ are produced at a B-integral as high as 8 rad. The value of the B-integral is measured by the phase-compensation method. The technique neither relies on complex phase-measurements nor on time-consuming optimization routines.

© 2010 Optical Society of America