11 September 2013 Si/chalcogenide glass hybrid waveguide design for efficient four wave mixing
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Si/Chalcogenide glass - hybrid slot waveguide designs are theoretically investigated to facilitate efficient degenerate four wave mixing. The TE-field of the mode concentrates inside the infiltrated slot leading to a nonlinear figure of merit >1. A periodic refractive index change is introduced to create a photonic band gap with associated negative dispersion in the second band. This negative dispersion compensates for the usual positive dispersion from waveguide and materials so that phase matching (group velocity dispersion = 0) can be achieved. Changing the periodicity of the index variation the phase matching frequency can be tuned across the whole near infrared allowing a flexible design of the hybrid photonic components.
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Jörg Schilling, Jörg Schilling, Christian Bohley, Christian Bohley, Peter Nolte, Peter Nolte, } "Si/chalcogenide glass hybrid waveguide design for efficient four wave mixing", Proc. SPIE 8808, Active Photonic Materials V, 88081E (11 September 2013); doi: 10.1117/12.2026065; https://doi.org/10.1117/12.2026065

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