کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
447840 1443209 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multiple scales analysis of chirped Bragg gratings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Multiple scales analysis of chirped Bragg gratings
چکیده انگلیسی

In this paper, a second-order multiple scales expansion is used to derive coupled-mode equations for a linearly chirped Bragg grating. This eliminates the error in the spectral response introduced by large values of the grating strength when conventional first-order coupled-mode theory is used. The autonomous and nonautonomous formulations of these equations are considered and compared in terms of accuracy and speed of the numerical solution of the resulting two-point boundary-value problem for the reflectance of the grating. These solutions are compared with the characteristic matrix solution taken as a reference. By using the fundamental matrix method, the autonomous formulation is found to be as accurate as the characteristic matrix method but faster in terms of computer CPU time.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 64, Issue 5, May 2010, Pages 398–402
نویسندگان
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