SIMPLIFIED COUPLED-WAVE EQUATIONS FOR CYLINDRICAL WAVES IN CIRCULAR GRATING PLANAR WAVE-GUIDES

被引：24

作者：

WU, CM ^{[1
]}

MAKINO, T ^{[1
]}

MACIEJKO, R ^{[1
]}

NAJAFI, SI ^{[1
]}

SVILANS, M ^{[1
]}

机构：

[1] ECOLE POLYTECH,DEPT GENIE PHYS,MONTREAL H3C 3A7,QUEBEC,CANADA

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1992年 / 10卷 / 11期

关键词：

D O I：

10.1109/50.184896

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 simplified form of the coupled-wave equations is presented for cylindrical waves in circular grating distributed feedback (DFB) planar waveguides. The coupling coefficients can be expressed as the product of a cylindrical-wave factor and the corresponding coupling coefficient between planar waveguide modes. Under the large radius approximation (betar >> 1), which covers most practical cases, the inter-polarization coupling between TE and TM cylindrical waves approaches zero. The coupled-wave equations can then be reduced to two independent families, one for TE- and the other for TM-cylindrical waves.

引用

页码：1575 / 1589

页数：15

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