Generation of unipolar pulses from nonunipolar optical pulses in a nonlinear medium

Year: 2011

Authors: Kozlov V. V., Rosanov N. N., De Angelis C., Wabnitz S.

Autors Affiliation: Department of Information Engineering, Universita\’ degli Studi di Brescia, Via Branze 38, I-25123 Brescia, Italy ; Department of Physics, St. Petersburg State University, Petrodvoretz, St. Petersburg, 198504, Russia; Institute of Laser Physics, Vavilov State Optical Institute, Birzhevaya liniya, 12, St. Petersburg, 199034, Russia; St. Petersburg State University of Information Technologies, Mechanics and Optics, St. Petersburg, 197101, Russia

Abstract: A unipolar electromagnetic pulse is a pulse with nonzero value of the static component of the Fourier spectrum of its real electric field (and not its envelope). We show how to efficiently generate unipolar pulses through propagation of an initially nonunipolar pulse in a nonlinear optical medium. One of the major results is the demonstration that the static component can only be generated in equal portions between the forward- and backward-traveling waves in the presence of nonlinear backscattering in a nonlinear medium.

Journal/Review: PHYSICAL REVIEW A

Volume: 84 (2)      Pages from: 023818  to: 023818

More Information: This work was carried out with support from the Cariplo Foundation Grant No. 2009-2730. N.N.R. acknowledges the Cariplo Foundation grant of Landau Network, Centro Volta for the support of his work at the Universita degli Studi di Brescia, as well as Grant No. 2.1.1/9824 of the Russian Ministry of Education and Science and Grant No. 11-02-12250-ofi-m of the Russian Foundation for Basic Research. We thank an anonymous referee for his constructive remarks.
DOI: 10.1103/PhysRevA.84.023818

Citations: 45
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