Article Dans Une Revue Optics Letters Année : 2021

Efficient type II second harmonic generation in an indium gallium phosphide on insulator wire waveguide aligned with a crystallographic axis

Résumé

We theoretically and experimentally investigate type II second harmonic generation in III-V-on-insulator wire waveguides. We show that the propagation direction plays a crucial role and that longitudinal field components can be leveraged for robust and efficient conversion. We predict that the maximum theoretical conversion is larger than that of type I second harmonic generation for similar waveguide dimensions and reach an experimental conversion efficiency of 12%/W, limited by the propagation loss.

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hal-04852211 , version 1 (02-08-2025)

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Nicolas Poulvellarie, Carlos Mas Arabi, Charles Ciret, Sylvain Combrié, Alfredo de Rossi, et al.. Efficient type II second harmonic generation in an indium gallium phosphide on insulator wire waveguide aligned with a crystallographic axis. Optics Letters, 2021, 46 (7), pp.1490. ⟨10.1364/OL.418064⟩. ⟨hal-04852211⟩
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