MODAL ANALYSES OF SEMICONDUCTOR RIB WAVE-GUIDES EMPLOYING NONEQUIDISTANT GRIDS

被引：10

作者：

YEVICK, D ^{[1
]}

JUN, Y ^{[1
]}

MUNOWITZ, M ^{[1
]}

VEZZETTI, D ^{[1
]}

机构：

[1] AMOCO TECHNOL CO,NAPERVILLE,IL 60566

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1991年 / 8卷 / 09期

关键词：

D O I：

10.1364/JOSAA.8.001385

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We establish, through explicit finite-difference calculations of semiconductor rib-waveguide modes, that considerable numerical error arises from the presence of discontinuities in the refractive-index profile. We accordingly consider two split-operator finite-difference formalisms that are second- and fourth-order accurate with respect to the transverse grid-point spacing on a suitably chosen grid of nonequidistant points and demonstrate that these algorithms greatly improved accuracy relative to analogous procedures on equidistant grids.

引用

页码：1385 / 1388

页数：4

共 21 条

[1] HIGH-ORDER GENERALIZED PROPAGATION TECHNIQUES [J].