EIGENMODE MATCHING AND PROPAGATION THEORY OF SQUARE MEANDER-TYPE COUPLERS

被引：20

作者：

NOLTING, HP

SZTEFKA, G

机构：

[1] Heinrich-Hertz Institut fɒr Nachrichtentechnik Berlin GmbH, Einsteinufer 37, 1000

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 12期

关键词：

D O I：

10.1109/68.180585

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：

The coupling efficiency of square meander-type or grating-assisted codirectional couplers has been calculated so far by common coupled mode theory. This new theory calculates coupling efficiency, period length, dispersion behavior, etc. on the basis of the propagation of both eigenmodes of the asymmetrical coupler using mode matching at the boundaries, which can be described as a rotation between the two eigenmodes of the undisturbed waveguide. This method is very fast, simple, accurate and gives a good insight in the physical behavior. Some examples verified by BPM calculations show the significance of this new theory.

引用

页码：1386 / 1389

页数：4

共 7 条

[1]

ALFERNESS RC, 1992, FEB C OPT FIB COMM S

[2]

HUANG W, 1991, J LIGHTWAVE TECHNOL, V9

[3] DIRECTIONAL-COUPLERS MADE OF NONIDENTICAL ASYMMETRIC SLABS .2. GRATING-ASSISTED COUPLERS [J].