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A simple analytical method for calculating the leakage loss of a buried rectangular waveguide
KTH, Superseded Departments, Electromagnetic Theory.ORCID iD: 0000-0002-3401-1125
2004 (English)In: Journal of Optics. A, Pure and applied optics, ISSN 1464-4258, E-ISSN 1741-3567, Vol. 6, no 1, 57-62 p.Article in journal (Refereed) Published
Abstract [en]

A simple and efficient analytical method is presented for studying leaky modes in a buried rectangular waveguide on a high-refractive-index substrate. The cross-sectional profile of the refractive index for the buried rectangular waveguide is decomposed into three parts. The two main parts correspond to two independent multilayered slab waveguide structures and the remaining part is treated as a small perturbation term. The contributions from all three parts to the leakage loss are given analytically. Numerical results are presented and compared with those calculated with the semi-vectorial finite difference method. Fast speed, satisfactory accuracy and simplicity are the main advantages of the present method.

Place, publisher, year, edition, pages
2004. Vol. 6, no 1, 57-62 p.
Keyword [en]
leaky mode analysis, buried rectangular waveguide, analytical, leakage loss, silica-on-silicon, finite-difference method, perfectly matched layer, modal-analysis, design, silicon, gain
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-23149DOI: 10.1088/1464-4258/6/1/011ISI: 000188795900011Scopus ID: 2-s2.0-0942278560OAI: oai:DiVA.org:kth-23149DiVA: diva2:341847
Note
QC 20100525 QC 20111102Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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He, Sailing

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