We report the coherent propagation of optical pulses through a three-level atomic system embedded in a nonlinear dispersive waveguide. We treat the case where an initially chirped soliton in resonance with the pump transition propagates together with a seed without chirp in resonance with the Stokes transition. It is found that the initial chirp is suppressed during the soliton frequency conversion, demonstrating the principle of a frequency converter that produces chirp-free soliton pulses. Numerical solutions of the complete equation set describing our system corroborate our analytical result.
© 2006 Optical Society of America
Original Manuscript: April 13, 2006
Revised Manuscript: April 13, 2006
Manuscript Accepted: April 18, 2006
Dilson P. Caetano and Jandir M. Hickmann, "Suppressing the frequency chirp in optical solitons using coherent effects," J. Opt. Soc. Am. B 23, 1655-1659 (2006)