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Photosensitive post tuning of chalcogenide photonic crystal waveguides

Lee, Michael; Grillet, Christian; Smith, Cameron L C; Moss, D J; Eggleton, Benjamin J; Freeman, Darren; Luther-Davies, Barry; Madden, Steve; Rode, Andrei V; Ruan, Yinlan; Lee, Yong Hee


We present experimental results on post-tuning the dispersion of a two-dimensional photonic crystal waveguide made from Ge33As12Se55 chalcogenide glass by exploiting the material photosensitivity to near-bandgap light. The change in the refractive index and volume of the material in response to exposure to 633nm light resulted in a shift of more than 5nm in the resonant coupling wavelength between a tapered optical fiber and the modes of a W1 waveguide. This represents a first proof...[Show more]

CollectionsANU Research Publications
Date published: 2007-02-05
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.15.001277


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