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Full-vectorial finite element method in a cylindrical coordinate system for loss analysis of photonic wire bends

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/17019

Title: Full-vectorial finite element method in a cylindrical coordinate system for loss analysis of photonic wire bends
Authors: Kakihara, Kuniaki Browse this author
Kono, Naoya Browse this author
Saitoh, Kunimasa Browse this author →KAKEN DB
Koshiba, Masanori Browse this author →KAKEN DB
Keywords: Numerical approximation and analysis
Integrated optics
Waveguides
Issue Date: 13-Nov-2006
Publisher: Optical Society of America
Journal Title: Optics Express
Volume: 14
Issue: 23
Start Page: 11128
End Page: 11141
Abstract: This paper presents a new full-vectorial finite-element method in a local cylindrical coordinate system, to effectively analyze bending losses in photonic wires. The discretization is performed in the cross section of a three-dimensional curved waveguide, using hybrid edge/nodal elements. The solution region is truncated by anisotropic, perfectly matched layers in the cylindrical coordinate system, to deal properly with leaky modes of the waveguide. This approach is used to evaluate bending losses in silicon wire waveguides. The numerical results of the present approach are compared with results calculated with an equivalent straight waveguide approach and with reported experimental data. These comparisons together demonstrate the validity of the present approach based on the cylindrical coordinate system and also clarifies the limited validity of the equivalent straight waveguide approximation.
Rights: © 2006 Optical Society of America, Inc.
Type: article (author version)
URI: http://hdl.handle.net/2115/17019
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柿原 邦昭

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