BIDIRECTIONAL EIGENMODE PROPAGATION FOR LARGE REFRACTIVE-INDEX STEPS

被引：96

作者：

SZTEFKA, G

NOLTING, HP

机构：

[1] Heinrich Hertz Institut für Nachrichtentech nik.

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1993年 / 5卷 / 05期

关键词：

D O I：

10.1109/68.215279

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 bidirectional eigenmode propagation (BEP) combines the advantages of the transfer-matrix-method for propagation and the mode-matching-method (satisfying Maxwell's boundary conditions) at longitudinal large discontinuities for forward and backward traveling eigenwaves including discretized radiation modes. The calculated examples include a grating assisted codirectional coupler for which 20% radiation losses have been found, and a cleaved waveguide facet with 39% reflected intensity and the recapture of radiation modes due to a taper like structure. The BEP is applicable to various types of optical passive (directional coupler, BUTT-coupling, taper) and active (DBR-, DFB-, VCSE-laser, detector) devices with large refractive index differences.

引用

页码：554 / 557

页数：4

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