Zusammenfassung
We present a numerical investigation of all-optical logical gates based
in a Michelson interferometer (Ml) of micro structured fibers, also
known as photonic crystal fibers (PCF). We considered an ultra-short
pulse propagating along the system in three distinct regimes of pump
power. We determine several relevant quantities to characterize the
system performance such as transmission, extinction ratio and crosstalk
as a function of the dephasing added to one of the Bragg gratings of the
Michelson interferometer (Ml). High-order effects, such as third-order
dispersion, intrapulse Raman scattering and self-steepening were
included in the nonlinear generalized Schrticlinger equation governing
the pulse propagation. Our results show that the proposed device can be
used to obtain all-optical XOR, OR and NOT logic gates. (C) 2014
Elsevier B.V. All rights reserved,
Nutzer