title: Ultrafast all-optical first- and higher-order differentiators based on interferometers.
abstract: We demonstrate that a conventional two-arm interferometer can implement first-order temporal differentiation of ultrafast arbitrary optical waveforms. Straightforward extension of this technique to nth-order optical differentiation is also suggested. This approach is experimentally demonstrated by an efficient and accurate first- and second-order temporal differentiation of (sub-)picosecond Gaussian optical pulses.
authors.affiliation: Institut National de la Recherche Scientifique, Montreal, Quebec, Canada.
authors.forename: Y
authors.initials: Y
authors.lastname: Park
authors.forename: J
authors.initials: J
authors.lastname: Azaña
authors.forename: R
authors.initials: R
authors.lastname: Slavík