Abstract
We propose an all-optical logical gate based in a triple-core photonic fiber
crystal operating with two ultrashort fundamental soliton pulses of 100 fs, with pulse
amplitude modulation in the modality of amplitude shift keying (PAM-ASK) with binary
amplitude modulation. In particular, we examine the performance of a triple-core PCF
coupler to execute two-input logical functions. The pulse propagation is modelled by an
extended nonlinear Schroedinger equation including the terms associated with the
anomalous group-velocity dispersion (GVD) and the third-order dispersion β3, as
well as the nonlinear effects of self-phase modulation (SPM), cross-phase modulation
(XPM), self-steepening, and intrapulse Raman scattering (IRS) in a lossless
configuration. Our results indicate the possibility of getting logical operations by
controlling the phase difference between the input pulses.
© 2012 IEEE
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