Analysis of abrupt discontinuities in weakly guiding waveguides by a modified beam propagation method
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概要
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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.
- 社団法人電子情報通信学会の論文
- 1993-12-25
著者
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堀田 昌志
山ロ大学
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堀田 昌志
山口大
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塚田 昌志
Graduate School Of Science And Engineering Yamaguchi University
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Hotta M
Ehime Univ. Matsuyama‐shi Jpn
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Hotta M
Graduate School Of Science And Engineering Yamaguchi University
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Hotta Masashi
Faculty Of Engineering Ehime University
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Geshiro M
Osaka Prefecture Univ. Osaka Jpn
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Geshiro Masahiro
Faculty Of Engineering Ehime University
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Sawa Shinnosuke
College of Engineering, University of Osaka Prefecture
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