We investigate the possibilities of the backward four-wave coupling based on the nonlocal photorefractive response for the nonlinear deceleration of light pulses. The presence of an additional external variable parameter—the pump intensity ratio—allows to improve the output characteristics of the decelerated pulses compared to those typical of the two-wave coupling. In particular, large delay times of the output pulses can be achieved without their strong amplification. This positive distinctive feature of the pulse deceleration occurs far from threshold of the mirrorless optical oscillation.
© 2009 Optical Society of America
Original Manuscript: July 23, 2009
Manuscript Accepted: August 20, 2009
Published: September 24, 2009
Boris Sturman, Pierre Mathey, Riadh Rebhi, and Hans-Rudolf Jauslin, "Nonlinear pulse deceleration using photorefractive four-wave mixing," J. Opt. Soc. Am. B 26, 1949-1953 (2009)