https://doi.org/10.1051/epjconf/202226608007
Cooperative Spontaneous Four-wave Mixing in Single-channel and Dualchannel Sequences of Side-coupled Ring Resonators
1 Dipartimento di Fisica, Università di Pavia, Via Agostino Bassi 6, 27100 Pavia, Italy
2 Univ. Grenoble Alpes, CEA-Leti, 38054 Grenoble cedex, France
3 Univ. Grenoble Alpes, CNRS, LTM, 38000 Grenoble, France
4 Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7, Canada
5 Dipartimento di Ingegneria Industriale e dell’Informazione, Università di Pavia, Via Adolfo Ferrata 5, 27100 Pavia, Italy
* Current address: Advanced Fiber Resources Milan, via Fellini 4, 20097 San Donato Milanese (MI), Italy
** Current address: ENSIL-ENSCI, Centre Européen de la Céramique, 12 rue Atlantis, 87068 Limoges, France
*** Current address: SOITEC SA, Parc technologique des Fontaines, Chemin des Franques, 38190 Bernin, France
Published online: 13 October 2022
Cooperative photon pair generation by Spontaneous Four-Wave Mixing (SFWM) process in singlechannel and dual-channel side-coupled ring resonator sequences is investigated. Our analysis shows that superlinear growth of generation rate with respect to the number of rings is possible even in presence of loss. Experimental evidence of super-SFWM is provided by comparing individual and collective generation rates obtained from a dual-channel ring resonator sequence. The results are in good agreement with theory and suggest that high photon pair generation rates can be achieved from integrated silicon ring resonator sequences without initiating nonlinear absorption processes.
© The Authors, published by EDP Sciences
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