Title :
A simple and efficient numerical method for nonlinear pulse propagation in N-core optical couplers
Author :
Wang, Youfa ; Wang, WenFeng
Author_Institution :
Opt. Fiber Dept., Agilent Technol. Singapore Pte Ltd., Singapore
fDate :
4/1/2004 12:00:00 AM
Abstract :
A set of N-dimension linear-coupled first-order differential equations were solved by a new method, which leads to a very simple iterative scheme. Based on the split-step Fourier technique, a simple and efficient algorithm was developed for analyzing pulse propagation in an N-core linear-coupled nonlinear coupler with the linear mismatch, loss, gain, higher order dispersion, and intermodal dispersion effect. It inherits the advantages of simplicity, flexibility, good accuracy, and relatively modest computing cost of the split-step Fourier method in single fiber.
Keywords :
Fourier analysis; differential equations; iterative methods; optical fibre couplers; optical fibre dispersion; optical fibre losses; optical solitons; N-core linear-coupled nonlinear coupler; N-core optical couplers; N-dimension linear-coupled first-order differential equations; higher order dispersion; intermodal dispersion effect; iterative scheme; linear mismatch; nonlinear pulse propagation; numerical method; single fiber; split-step Fourier technique; Algorithm design and analysis; Differential equations; Dispersion; Fiber nonlinear optics; Iterative algorithms; Iterative methods; Nonlinear optics; Optical fiber couplers; Optical propagation; Optical pulses;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.824671