Mid-infrared supercontinuum generation in hybrid chalcogenide/silicon-germanium waveguides

Alberto Della Torre; Milan Sinobad; Rémi Armand; Barry Luther-Davies; Pan Ma; Stephen Madden; Sukanta Debbarma; Khu Vu; David J. Moss; Arnan Mitchell; Jean-Michel Hartmann; Jean-Marc Fedeli; Christelle Monat; Christian Grillet

doi:10.1117/12.2539913

30 December 2019 Mid-infrared supercontinuum generation in hybrid chalcogenide/silicon-germanium waveguides

Alberto Della Torre, Milan Sinobad, Rémi Armand, Barry Luther-Davies, Pan Ma, Stephen Madden, Sukanta Debbarma, Khu Vu, David J. Moss, Arnan Mitchell, Jean-Michel Hartmann, Jean-Marc Fedeli, Christelle Monat, Christian Grillet

Author Affiliations +

Proceedings Volume 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019; 112002D (2019) https://doi.org/10.1117/12.2539913
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

We report mid-infrared supercontinuum generation in a silicon germanium-on-silicon waveguide. We show that, by adding a chalcogenide cladding, it is possible to trim a posteriori the waveguide’s dispersion profile which, in turn, governs the properties of the generated supercontinuum. In particular, we experimentally show that a shift from anomalous to normal dispersion takes place when a 1.26 μm thick cladding layer of Ge_11.5As₂₄Se_64.5 is added. Finally, we show that the group velocity dispersion of the waveguide can be precisely controlled by changing the thickness of the cladding layer.

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Alberto Della Torre, Milan Sinobad, Rémi Armand, Barry Luther-Davies, Pan Ma, Stephen Madden, Sukanta Debbarma, Khu Vu, David J. Moss, Arnan Mitchell, Jean-Michel Hartmann, Jean-Marc Fedeli, Christelle Monat, and Christian Grillet "Mid-infrared supercontinuum generation in hybrid chalcogenide/silicon-germanium waveguides", Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 112002D (30 December 2019); https://doi.org/10.1117/12.2539913

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