Cascading phase-shift and multivalued response in counterpropagating frequency nondegenerate parametric amplifiers

K. Gallo, P. Baldi, M. De Micheli, D. B. Ostrowsky, and G. Assanto

Opt. Lett. 25, 966-968 (2000)


The response of a counterpropagating parametric amplifier is analyzed in the ?cascading? regime. The richness of the predicted behavior (amplification, bistability, phase-shifting) is appealing for all-optical processing of low power signals. Moreover we discuss the implementation in a Quasi-Phase-Matched proton-exchanged LiNbO3 waveguide.