Aa. Afanas'Ev et al., Spatial instability of counterpropagating waves in nonlinear distributed feedback structures, PHYS REV A, 60(3), 1999, pp. 2375-2379
We investigate spatial instabilities (induced by small angular perturbation
s) of counterpropagating waves in nonlinear distributed feedback (DFB) stru
ctures. We determined the DFB-structure threshold length at which an absolu
te instability occurs and a nonhomogeneous spatial intensity distribution i
s generated. The evolution of the transverse intensity distribution is stud
ied for counterpropagating waves as a function of the control parameters. [
S1050-2947(99)04808-8].