S. Hädrich,
J. Rothhardt,
M. Krebs,
S. Demmler,
J. Limpert,
and A. Tünnermann
Improving carrier-envelope phase stability in optical parametric chirped-pulse amplifiers by control of timing jitter
Opt. Lett., 37 :4910 (November 2012)
Improving carrier-envelope phase stability in optical parametric chirped-pulse amplifiers by control of timing jitter
Opt. Lett., 37 :4910 (November 2012)
Abstract:
It is shown that timing jitter in optical parametric chirped-pulse amplification induces spectral drifts that transfer to carrier-envelope phase (CEP) instabilities via dispersion. Reduction of this effect requires temporal synchronization, which is realized with feedback obtained from the angularly dispersed idler. Furthermore, a novel method to measure the CEP drifts by utilizing parasitic second harmonic generation within parametric amplifiers is presented. Stabilization of the timing allows the obtainment of a CEP stability of 86 mrad over 40 min at 150 kHz repetition rate.