title: Interferometric technique for measuring broadband ultrashort pulses at the sampling limit.
abstract: We present a new technique for measuring ultrashort optical pulses by use of spectral phase interferometry for direct electric-field reconstruction that is suitable for large bandwidth pulses. The method does not require generation of a replica of the pulse to be measured and encodes the spectral phase information in a spatial interference pattern. A major advantage of this method is that the spectral sampling saturates the Whittaker-Shannon bound. Moreover, the technique allows for the characterization of some types of space-time coupling. An experimental demonstration of the technique is presented.
authors.affiliation: Institute of Optics, University of Rochester, Rochester, New York 14627, USA.
authors.forename: Ellen M
authors.initials: EM
authors.lastname: Kosik
authors.forename: Aleksander S
authors.initials: AS
authors.lastname: Radunsky
authors.forename: Ian A
authors.initials: IA
authors.lastname: Walmsley
authors.forename: Christophe
authors.initials: C
authors.lastname: Dorrer