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Characterizing photonic crystal waveguides with an expanded k-space evanescent coupling technique

Lee, Michael; Grillet, Christian; Poulton, Christopher; Monat, Christelle; Smith, Cameron L C; Magi, E; Freeman, Darren; Madden, Steve; Luther-Davies, Barry; Eggleton, Benjamin J


We demonstrate a direct, single measurement technique for characterizing the dispersion of a photonic crystal waveguide (PCWG) using a tapered fiber evanescent coupling method. A highly curved fiber taper is used to probe the Fabry-Pérot spectrum of a closed PCWG over a broad k-space range, and from this measurement the dispersive properties of the waveguide can be found. Waveguide propagation losses can also be estimated from measurements of closed waveguides with different lengths. The...[Show more]

CollectionsANU Research Publications
Date published: 2008-08-21
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.16.013800


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