4-SECTIONED POLARIZATION-INDEPENDENT DIRECTIONAL COUPLER WITH EXTREMELY RELAXED FABRICATION TOLERANCES

被引：2
|
作者：
GRANESTRAND, P
机构：
[1] Fiber Optics Research Center, Ericsson Telecom
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 06期
关键词：
D O I：
10.1109/68.141979
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 new type of polarization-independent directional coupler is proposed. The principle, which utilizes an electrode pattern in four sections, gives extremely large fabrication tolerances in terms of allowed values on the L/l(c) ratios (physical length/coupling length) for the two polarizations. The concept is analyzed by coupled wave theory and the result is checked for one case with the beam propagation method.
引用
收藏
页码：594 / 596
页数：3
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