Propagation characteristics of single-mode graded-index elliptical core linear and nonlinear fiber using super-Gaussian approximation

被引：9

作者：

Khijwania, Sunil K. ^{[1
]}

Nair, Veena M. ^{[1
]}

Sarkar, Somenath ^{[2
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, India

[2] Univ Calcutta, Dept Elect Sci, Kolkata 700009, India

来源：

APPLIED OPTICS | 2009年 / 48卷 / 31期

关键词：

FINITE-ELEMENT ANALYSIS; OPTICAL-WAVEGUIDES; FUNDAMENTAL MODE;

D O I：

10.1364/AO.48.00G156

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A rigorous, much simplified, and accurate analysis of the modal field characteristics such as propagation constants, mode power confinement, delay and dispersion characteristics of a single-mode graded-index elliptical core fiber is presented applying a variational method and super-Gaussian approximation of the fundamental modal field. Normalized propagation constants, a fundamental parameter to evaluate other modal characteristics, obtained through this method showed a greater accuracy over the entire range of practical interest in comparison with other reported methods. The effects of various aspect ratios on these characteristics are analyzed. In addition, the effect of Kerr nonlinearity on these characteristics is investigated using the reported method, and a comparison is made with the linear results. (C) 2009 Optical Society of America

引用

页码：G156 / G162

页数：7

共 17 条

[1]

Abramowitz M., 1972, HDB MATH FUNCTIONS

[2]

Boyd R. W., 2003, NONLINEAR OPTICS

[3]

CHIANG KS, 1986, J LIGHTWAVE TECHNOL, V4, P980, DOI 10.1109/JLT.1986.1074842

[4]

Dennis J E, 1996, NUMERICAL METHODS UN

[5]

DYOTT RB, 1995, ELLIPTICAL FIBER WAV, P37

[6] ACCURATE FINITE-ELEMENT ANALYSIS OF DUAL-MODE HIGHLY ELLIPTIC-CORE FIBERS [J].

EGUCHI, M ;

KOSHIBA, M .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1994, 12 (04) :607-613

[7]

Ghatak A.K., 1998, Introduction to Fiber Optics

[8] SUPER-GAUSSIAN APPROXIMATION OF THE FUNDAMENTAL RADIAL MODE IN NONLINEAR PARABOLIC-INDEX OPTICAL FIBERS [J].

KARLSSON, M .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1992, 9 (09) :1558-1562

[9] PROPAGATION CHARACTERISTICS OF HIGHLY ELLIPTICAL CORE OPTICAL-WAVEGUIDES - A PERTURBATION APPROACH [J].

KUMAR, A ;

VARSHNEY, RK .

OPTICAL AND QUANTUM ELECTRONICS, 1984, 16 (04) :349-354

[10] Optical dielectric waveguide analysis, based on the modified finite element and integral equation methods [J].

Manenkov, AB ;

Rozhnev, AG .

OPTICAL AND QUANTUM ELECTRONICS, 1998, 30 (01) :61-70

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