Third-harmonic generation in slow-light chalcogenide glass photonic crystal waveguides

Christelle Monat, Marcel Spurny, Christian Grillet, Liam O'Faolain, Thomas F. Krauss, Benjamin J. Eggleton, Douglas Bulla, Steve Madden, Barry Luther-Davies

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28 Citations (Scopus)
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We demonstrate third-harmonic generation (THG) in a dispersion-engineered slow-light photonic crystal waveguide fabricated in AMTIR-1 chalcogenide glass. Owing to the relatively low loss and low dispersion in the slow-light (c/30) regime, combined with the high nonlinear figure of merit of the material (similar to 2), we obtain a relatively large conversion efficiency (1.4 x 10(-8)/W-2), which is 30x higher than in comparable silicon waveguides, and observe a uniform visible light pattern along the waveguide. These results widen the number of applications underpinned by THG in slow-light platforms, such as the direct observation of the spatial evolution of the propagating mode. (C) 2011 Optical Society of America

Original languageEnglish
Pages (from-to)2818-2820
Number of pages3
JournalOptics Letters
Issue number15
Publication statusPublished - 1 Aug 2011


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