A model-based parameter estimation approach for numerical analysis of single-mode optical fibers

作     者：Fiumara, V Galdi, V Pierro, V Pinto, IM 

作者机构：Univ Salerno DIIIE Waves Grp I-84084 Fisciano SA Italy 

出 版 物：《JOURNAL OF LIGHTWAVE TECHNOLOGY》 (J Lightwave Technol)

年 卷 期：1999年第17卷第4期

页      面：684-689页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 0702[理学-物理学] 

主　　题：model-based parameter estimation optical fibers Pade approximants 

摘      要：An efficient numerical method is proposed and implemented for the analysis of propagation characteristics of single-mode optical fibers with arbitrary refractive index profile. The method follows the concept of the so-called model-based parameter estimation, and the Pade algorithm is used to construct a low-order rational approximant of the spectral domain Green s function, obtained by solving a hierarchy of static problems, The sought eigenfrequency and held distribution are then estimated by computing, respectively, the dominant pole and the related residual of the rational approximant. A number of profiles are analyzed and experiments show that very accurate results can be cheaply obtained through this technique.