Backscattering and Hong-Ou-Mandel manifolds in microring resonators

Peter L. Kaulfuss; Paul M. Alsing; Richard J. Birrittella; Dashiell L. P. Vitullo

doi:10.1117/12.2672115

19 July 2023 Backscattering and Hong-Ou-Mandel manifolds in microring resonators

Peter L. Kaulfuss, Paul M. Alsing, Richard J. Birrittella, Dashiell L. P. Vitullo

Proceedings Volume 12633, Photonics for Quantum 2023; 126330E (2023) https://doi.org/10.1117/12.2672115
Event: Photonics for Quantum, 2023, Rochester, New York, United States

Abstract

We investigate the effect of backscattering on the Hong-Ou-Mandel manifold (HOMM) that manifests in double-bus micro-ring resonators (MRRs). The HOMM represents higher-dimensional parameter solutions for the complete destructive interference of coincident detection in the HOM effect. To model the backscattering, we introduce a set of internal ‘beam splitters’ inside the ring that allow photons to ‘reflect’ into new counterpropagating modes inside the MRR. We find that the one-dimensional HOMM in MRRs investigated here is extremely robust against deterioration due to backscattering, even in a linear chain of identical MRRs. Further we find that a small amount of backscattering introduced into a chain of non-identical MRRs connected in parallel could be desirable, causing them to behave more like chain of identical MRRs.

Conference Presentation

Citation Download Citation

Peter L. Kaulfuss, Paul M. Alsing, Richard J. Birrittella, and Dashiell L. P. Vitullo "Backscattering and Hong-Ou-Mandel manifolds in microring resonators", Proc. SPIE 12633, Photonics for Quantum 2023, 126330E (19 July 2023); https://doi.org/10.1117/12.2672115

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