Cascading phase shift and multivalued response in counterpropagating frequency-nondegenerate parametric amplifiers.
We propose and analyze a novel geometry for all-optical processing of low-power signals that is based on a frequency-nondegenerate counterpropagating parametric amplifier. The stationary response in the cascading regime exhibits multivalued solutions with enhanced nonlinear phase shifts. Implementation in a quasi-phase-matched LiNbO(3) waveguide is discussed.
K
K
Gallo
P
P
Baldi
M
M
De Micheli
D B
DB
Ostrowsky
G
G
Assanto