DocumentCode :
3109034
Title :
Solitons Interaction and their Stability Based on Nonlinear Schrödinger Equation
Author :
Shahzad, Asim ; Zafrullah, M.
Author_Institution :
Dept. of Telecom Eng., Univ. of Eng. & Technol., Taxila, Pakistan
fYear :
2009
fDate :
28-30 Dec. 2009
Firstpage :
305
Lastpage :
308
Abstract :
Optical solitons are considered as natural bits for telecommunications as they have the tendency to maintain their shape over transoceanic distances because of interaction between nonlinearity and anomalous group velocity dispersion. However, depending upon the individual pulse width, inter-pulse spacing and loss in the fiber, co-propagating solitons do interact and share energy. It is therefore imperative to investigate the soliton pulse interaction before implementing them in a high speed optical communication system. Incorporating the mathematical model based on the Nonlinear Schrodinger (NLS) equation and using the split-step Fourier transform method; we have conducted various simulation experiments to investigate the interaction between adjacent pulses of equal amplitude, in-phase solitons copropagating in dispersion shifted fibers. The simulation results show that, solitons after traveling a certain distance get attracted and evolve as a giant pulse of double the amplitude of the individual pulse and if propagated further, simply get separated as if they have walked through each other. The simulation results reveal that, a careful choice of the pulse and fiber parameters can be helpful in avoiding the soliton interaction which limits the channel capacity.
Keywords :
Fourier transforms; Schrodinger equation; optical fibre dispersion; optical fibre networks; optical pulse shaping; optical solitons; dispersion shifted fibers; high speed optical communication system; inter-pulse loss; inter-pulse spacing; nonlinear Schrodinger equation; optical soliton interaction; pulse width; split-step Fourier transform; transoceanic distances; Fourier transforms; Mathematical model; Nonlinear equations; Optical fiber communication; Optical fiber losses; Optical pulses; Optical solitons; Shape; Space vector pulse width modulation; Stability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Machine Vision, 2009. ICMV '09. Second International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-0-7695-3944-7
Electronic_ISBN :
978-1-4244-5645-1
Type :
conf
DOI :
10.1109/ICMV.2009.38
Filename :
5381134
Link To Document :
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