Supermode-based second harmonic generation in a nonlinear interferometer
- URL: http://arxiv.org/abs/2106.13204v2
- Date: Sat, 27 Nov 2021 17:23:23 GMT
- Title: Supermode-based second harmonic generation in a nonlinear interferometer
- Authors: David Barral, Virginia D'Auria, Florent Doutre, Tommaso Lunghi,
S\'ebastien Tanzilli, Alicia Petronela Rambu, Sorin Tascu, Juan Ariel
Levenson, Nadia Belabas and Kamel Bencheikh
- Abstract summary: 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.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: 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.
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