Ge-rich SiGe waveguides for supercontinuum generation in the mid-IR
Résumé
The third-order nonlinear parameter of Ge-rich SiGe waveguides are experimentally retrieved using a bi-directional top hat D-scan at λ = 1.58 µm. The obtained values are then used to fit the theoretical equation, providing promising values in the mid-IR, where the nonlinear effects are no longer limited by two-photon absorption. New Ge-rich SiGe waveguide designs are provided to exploit the nonlinear properties in the mid-IR, showing a flat anomalous dispersion over one octave spanning from λ = 3 µm to λ = 8 µm and a γ parameter that decreases from γ = 10 W-1 m-1 .
Domaines
Optique [physics.optics]| Origine | Fichiers produits par l'(les) auteur(s) |
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