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Higher-order mode grating devices in As2S3 chalcogenide glass rib waveguides

Finsterbusch, Klaus; Baker, Neil J; Ta'eed, Vahid G; Eggleton, Benjamin J; Choi, Duk-Yong; Madden, Steve; Luther-Davies, Barry

Description

We report on the design and fabrication of high-quality long-period gratings in chalcogenide glass As2S3 rib waveguides utilizing the strong photosensitivity. Higher-order modes of the rib waveguides are analyzed by inspection of the spectra of Bragg gratings written into these waveguides. Based on these measurements, we infer the effective indices of higher-order modes, which are in good agreement with modeling results using a beam propagation method. High-quality long-period gratings are...[Show more]

CollectionsANU Research Publications
Date published: 2007-06
Type: Journal article
URI: http://hdl.handle.net/1885/104128
Source: Journal of the Optical Society of America B
DOI: 10.1364/JOSAB.24.001283

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