Title :
Optimization and characterization of phase-controlled all-optical switching with fiber solitons
Author :
Ramos, Pedro M. ; Paiva, Carlos R.
Author_Institution :
Inst. de Telecomunicacoes, Inst. Superior Tecnico, Lisbon, Portugal
fDate :
10/1/1997 12:00:00 AM
Abstract :
Using a variational approach based on the Lagrangian formulation, consisting of an adiabatic perturbation of two coupled fiber solitonlike pulses, we present an optimization procedure for phase-controlled all-optical switching. Large phase intervals for both the parallel- and cross-state of the nonlinear coupler are determined. By means of a unified theoretical framework, which takes into account the effect of cross-phase modulation (XPM), both twin-core fiber couplers and birefringent optical fibers are considered. The influence of several errors in the weaker control pulse-such as time delay and pulsewidth fluctuations-on the transmission characteristics of the nonlinear coupler is also investigated
Keywords :
birefringence; delays; optical fibre couplers; optical fibre theory; optical solitons; optimisation; perturbation theory; Lagrangian formulation; adiabatic perturbation; birefringent optical fibers; coupled fiber solitonlike pulses; cross-phase modulation; cross-state; fiber solitons; large phase intervals; optimization procedure; parallel-state; phase-controlled all-optical switching; pulsewidth fluctuations; time delay; transmission characteristics; twin-core fiber couplers; unified theoretical framework; variational approach; weaker control pulse; Birefringence; Error correction; Lagrangian functions; Nonlinear equations; Optical coupling; Optical fiber couplers; Optical fibers; Optical pulses; Pulse amplifiers; Solitons;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.658601
