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Higher order mode conversion via focused ion beam milled Bragg gratings in Silicon-on-Insulator waveguides

Ta'eed, Vahid G; Moss, D J; Eggleton, Benjamin J; Freeman, Darren; Madden, Steve; Samoc, Marek; Luther-Davies, Barry; Janz, S; Xu, D-X

Description

We report the first Bragg gratings fabricated by Focused Ion Beam milling in optical waveguides. We observe striking features in the optical transmission spectra of surface relief gratings in silicon-on-insulator waveguides and achieve good agreement with theoretical results obtained using a novel adaptation of the beam propagation method and coupled mode theory. We demonstrate that leaky Higher Order Modes (HOM), often present in large numbers (although normally not observed) even...[Show more]

CollectionsANU Research Publications
Date published: 2004-10-18
Type: Journal article
URI: http://hdl.handle.net/10440/368
http://digitalcollections.anu.edu.au/handle/10440/368
Source: Optics Express
DOI: 10.1364/OPEX.12.005274

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