Sampled Bragg gratings in chalcogenide (As2S3) rib-waveguides
Date
2006-10-02
Authors
Baker, Neil J
Lee, Ho W
Littler, I C M
de Sterke, C Martijn
Eggleton, Benjamin J
Madden, Steve
Luther-Davies, Barry
Choi, Duk-Yong
Journal Title
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Volume Title
Publisher
Optical Society of America
Abstract
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 and
bandwidth to the best sampled Bragg gratings obtained to date in silica
optical fibre.
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Keywords
holographic interferometry, glass and other amorphous materials, Bragg reflectors
Citation
Optics Express 14.20 (2006): 9451-9459
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Source
Optics Express
Type
Journal article
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