کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1540320 996658 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adaptive higher-order split-step Fourier algorithm for simulating lightwave propagation in optical fiber
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Adaptive higher-order split-step Fourier algorithm for simulating lightwave propagation in optical fiber
چکیده انگلیسی

In this paper, we propose an adaptive step-size control algorithm for solving nonlinear Schrödinger’s equations. The proposed algorithm has a fourth-order local accuracy and is a system-independent rule for adjusting the step sizes. This algorithm has two potential advantages, an automatic step adjustment mechanism and higher-order accuracy. A test example shows that, by comparing to the fixed step-size method and the local-error method, our method decreases the computational time by about 10 and 70 times, respectively. The performance of the proposed method is validated and compared to commonly used step-size selection methods by simulating the evolution of a third-order soliton, the collision of a fundamental soliton pair, and the supercontinuum generation. Numerical simulations show that the proposed method can increase the computational efficiency by more than one and two orders of magnitude in comparison with the symmetrized split-step Fourier method. In addition, the computational efficiency is improved with the increase of the accuracy of solutions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 282, Issue 7, 1 April 2009, Pages 1435–1439
نویسندگان
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