We study the spatiotemporal dynamics of ultrashort pulses close to a point of zero group-velocity dispersion in planar waveguides with focusing nonlinearities. We find that the process of pulse collapse enhances the emission of so-called resonant radiation, providing an efficient mechanism of energy transfer from solitonic to dispersive waves and leading to suppression of the collapse.
© 2005 Optical Society of America
Alexey V. Yulin, Dmitry V. Skryabin, and Philip St. J. Russell, "Resonant radiation and collapse of ultrashort pulses in planar waveguides," Opt. Lett. 30, 525-527 (2005)