Ultrashort pulses exhibiting angular dispersion have their pulse front tilted relative to the phase front. This leads to a serious degradation in the focused peak power, making the use of adequate diagnostics indispensable. Here we present an upgrade to a previously demonstrated uniaxial single-shot autocorrelator for ultrashort laser pulse-width measurements that extends its versatility, by making it suitable for detecting and correcting tilted pulse fronts. We have used this diagnostic to optimize the alignment of our chirped-pulse-amplification grating compressor.
© 2005 Optical Society of America
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5520) Ultrafast optics : Pulse compression
(320.5540) Ultrafast optics : Pulse shaping
(320.7080) Ultrafast optics : Ultrafast devices
(320.7100) Ultrafast optics : Ultrafast measurements
Gonçalo Figueira, Luís Cardoso, Nelson Lopes, and João Wemans, "Mirrorless single-shot tilted-pulse-front autocorrelator," J. Opt. Soc. Am. B 22, 2709-2714 (2005)