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Proceedings Paper

Rediscovering the waveguide beam splitter/combiner
Author(s): Changhe Zhou; Xin Zhao; Liren Liu
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Paper Abstract

By establishing the relation of Talbot self-imaging effects in free space and in waveguide, we have rediscovered the self-imaging diffraction effect in waveguide with the view of Talbot effect in free-space. We have found that the diffraction theory of Talbot effect in free space do give us a set of simplified equations, that can't be obtained with the theory of multimode interference (MMI), beam propagation method, etc.. We show that simple equations for explanation of Talbot self-imaging effect in free space can be used to design the waveguide beam splitters and combiners. Thus, the heavy designing work with the previous multimode interference method can be released with the new simple equations. More importantly, new configurations of waveguide beam splitters and combiners can be designed with the simple equations. The importance of rediscovering waveguide beam splitter is that a complete new and clear physical picture can explain the complex self-imaging phenomena in waveguide, which should be highly interesting for practical applications.

Paper Details

Date Published: 28 August 2002
PDF: 6 pages
Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); doi: 10.1117/12.481271
Show Author Affiliations
Changhe Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Xin Zhao, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 4904:
Optical Fiber and Planar Waveguide Technology II
Shuisheng Jian; Steven Shen; Katsunari Okamoto, Editor(s)

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