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Article Dans Une Revue Optics Express Année : 2021

Supermode-based second harmonic generation in a nonlinear interferometer

Résumé

We demonstrate supermode-based second harmonic generation in an integrated nonlinear interferometer made of linear and nonlinear directional couplers. We use a fully-fibered pump shaper to demonstrate second harmonic generation pumped by the symmetric or anti- symmetric fundamental spatial modes. The selection of the pumping mode and thus of a specific SHG spectral profile is achieved through the selection of the fundamental wavelength and via a robust phase setting scheme. We use two methods: either post-selecting or actively setting the pumping mode. Such a modal phase matching paves the way for classical and quantum applications of coupled nonlinear photonic circuits, where multimode excitation, encoding and detection are a route for multiplexing and scaling up light-processing.

Dates et versions

hal-03437103 , version 1 (19-11-2021)

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Citer

David Barral, Virginia d'Auria, Florent Doutre, Tommaso Lunghi, Sébastien Tanzilli, et al.. Supermode-based second harmonic generation in a nonlinear interferometer. Optics Express, 2021, 29 (23), pp.37175. ⟨10.1364/OE.435281⟩. ⟨hal-03437103⟩
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