ANALYSIS OF ABRUPT DISCONTINUITIES IN WEAKLY GUIDING WAVE-GUIDES BY A MODIFIED BEAM-PROPAGATION METHOD

被引：0
|
作者：
HOTTA, M
GESHIRO, M
SAWA, S
机构：
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 1993年 / E76B卷 / 12期
关键词：
BEAM PROPAGATION METHOD; REFLECTION; WAVE-GUIDE DISCONTINUITY; OVERLAP INTEGRAL; WEAKLY GUIDING STRUCTURE;
D O I：
暂无
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 beam propagation method (BPM) is a powerful and manageable method for the analysis of wave propagation along weakly guiding optical waveguides. However, the effects of reflected waves are not considered in the original BPM. In this paper, we propose two simple modifications of the BPM to make it relevant in characterizing abrupt discontinuities in weakly guiding waveguides at which a significant amount of reflection is expected to be observed. Validity of the present modifications is confirmed by the numerical results for abrupt discontinuities in step-index slab waveguides and butt-joints between different slab waveguides.
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页码：1552 / 1557
页数：6
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