We experimentally investigate the nonlinear reshaping of a continuous wave that leads to chirp-free and flat-top intense pulses or flaticons exhibiting strong temporal oscillations at their edges and a stable self-similar expansion upon propagation of their central region. This study was performed in the normal dispersion regime of a nonzero dispersion-shifted fiber and involved a sinusoidal phase modulation of the continuous wave. Our fiber optics experiment is analogous to considering the collision between oppositely directed currents near the beach, and it may open the way to new investigations in the field of hydrodynamics.
© 2013 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: July 15, 2013
Manuscript Accepted: August 29, 2013
Published: September 26, 2013
Bastien Varlot, Stefan Wabnitz, Julien Fatome, Guy Millot, and Christophe Finot, "Experimental generation of optical flaticon pulses," Opt. Lett. 38, 3899-3902 (2013)