Open AccessAccuracy measurements and improvement for complete characterization of optical pulses from nonlinear processes via multiple spectral-shearing interferometry
Author(s) -
Adam S. Wyatt,
Alexander Grün,
Philip K. Bates,
Olivier Chalus,
Jens Biegert,
Ian A. Walmsley
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.025355
Subject(s) - optics , interferometry , shearing (physics) , shearing interferometer , bandwidth (computing) , physics , pulse shaping , pulse compression , materials science , laser , astronomical interferometer , telecommunications , computer science , radar , thermodynamics
We demonstrate that multiple spectral-shearing interferometry increases the precision and accuracy of measurements of the spectral phase of a complex pulse (time-bandwidth product = 125) arising from self-phase modulation in a gas filled capillary. We verify that the measured interferometric phase is accurate to 0.1 rad across the full bandwidth by checking the consistency between the spectral phases of each individual shear measurement. The accuracy of extracting pulse parameters (group delay dispersion, pulse duration and peak intensity) for single shear measurements were verified to better than 10% by comparison with the multishear reconstruction. High order space-time coupling is quantified across a single transverse dimension, verifying the suitability of such pulses for use in strong field experiments.