Study of optical modal index for semi conductor rib wave guides using higher order compact finite difference method

被引：5
|
作者：
Thander, Anup Kumar [1 ]
Bhattacharyya, Sucharita [1 ]
机构：
[1] Guru Nanak Inst Technol, Dept Appl Sci & Humanities, Kolkata 7000114, India
来源：
OPTIK | 2017年 / 131卷
关键词：
Finite difference method; Effective refractive index; Modal index; Higher order compact; Contour plot; Rib wave guide; Normalized index;
D O I：
10.1016/j.ijleo.2016.12.002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a higher order compact finite difference method in combination with conjugate gradient iteration scheme has been used for optical modal index study of four different semi conductor rib wave guide structures in GaAs/GaAlAs and GeSi material systems. Obtained results for modal indices and normalized indices are used to optimize the structure parameters of the wave guides under consideration and confirm the degree of guidance for propagating waves through various structures in line with the results as obtained by other researchers. Confinement factors for different structures are calculated in support of the data to verify the acceptability of our method. (C) 2016 Elsevier GmbH. All rights reserved.
引用
收藏
页码：775 / 784
页数：10
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