Bistable soliton (for which the nonlinear propagation constant shift is a double-valued function of energy) solutions to the pulse evolution equation for a doubly but inhomogeneously doped (with one of the dopants) fiber are obtained numerically. Their physical characteristics are obtained and studied. It is shown that the theoretical prediction can be experimentally verified by a pair of dopants from an already available lot of dopants.
© 1999 Optical Society of America
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(190.1450) Nonlinear optics : Bistability
Ajit Kumar and Thomas Kurz, "Bistable solitons in inhomogeneously doubly doped fibers," Opt. Lett. 24, 373-375 (1999)