Theory of nonlinear pulse propagation in inhomogeneous waveguides.
An approximate treatment of solitons (nonlinear pulses) in inhomogeneous waveguides is presented. We find that, for slowly varying inhomogeneity, both bright and dark solitons are supported by waveguides. These solitons acquire a time-dependent velocity and acceleration but otherwise propagate through the waveguide without changing shape.
Bendow
B
B
Gianino
P D
PD