Fibre mode expansion for 2-D waveguide calculations

被引：10

作者：

Daxhelet, X ^{[1
]}

Lacroix, S ^{[1
]}

Gonthier, F ^{[1
]}

机构：

[1] CANSTAR,ALCATEL CANADA WIRE,MARKHAM,ON L3R 5V2,CANADA

来源：

OPTICAL AND QUANTUM ELECTRONICS | 1997年 / 29卷 / 02期

关键词：

D O I：

10.1023/A:1018545803976

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A numerical method is introduced which is devised to calculate the lower-order modes of optical waveguides with two-dimensional transverse index profiles embedded in a homogeneous cladding medium. We propose a method based on a series expansion using guided modes of an optical fibre. To test the method, it is applied to a three-layer optical-fibre and the results are compared with the exact analytical solutions. The error in the calculation of the modal effective indices is found to be less than 10(-6). This method allows the modelling of symmetric 2 x 2 completely fused fibre couplers. Effective indices and polarization corrections are compared with results obtained by the field correction method. The adiabaticity criterion is calculated for these couplers.

引用

页码：139 / 150

页数：12