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Sampled Bragg gratings in chalcogenide (As2S3) rib-waveguides

Baker, Neil J; Lee, Ho W; Littler, I C M; de Sterke, C Martijn; Eggleton, Benjamin J; Choi, Duk-Yong; Madden, Steve; Luther-Davies, Barry

Description

We have written a sampled Bragg grating into a highly photosensitive chalcogenide (As2S3) rib-waveguide using a scanning Sagnac interferometer. The grating exhibits evenly spaced rejection peaks over a 40 nm bandwidth. We estimate the induced refractive index change of the waveguide to be over 0.03 by matching the measured spectrum to numerical solutions of the coupled mode equations while accounting for an induced chirp. The sampled Bragg grating presented is comparable in strength...[Show more]

CollectionsANU Research Publications
Date published: 2006-10-02
Type: Journal article
URI: http://hdl.handle.net/10440/457
http://digitalcollections.anu.edu.au/handle/10440/457
Source: Optics Express
DOI: 10.1364/OE.14.009451

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