Backscatter and spontaneous four-wave mixing in micro-ring resonators

Jonte Hance*, Gary F Sinclair, John G Rarity

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)
53 Downloads (Pure)


We model backscatter for electric fields propagating through optical micro-ring resonators, as occurring both in-ring and in-coupler. These provide useful tools for modelling transmission and in-ring fields in these optical devices. We then discuss spontaneous four-wave mixing and use the models to obtain heralding efficiencies and rates. We observe a trade-off between these, which becomes more extreme as the rings become more strongly backscattered.
Original languageEnglish
Article number025003
JournalJournal of Physics: Photonics
Issue number2
Publication statusPublished - 8 Apr 2021

Bibliographical note

Funding Information:
We thank Will McCutcheon, Henkjan Gersen and Joshua Silverstone for useful discussions. This work was supported by the Engineering and Physical Sciences Research Council (Grant Nos. EP/T001011/1, EP/R513386/1, EP/M013472/1 and EP/L024020/1).

Publisher Copyright:
© Author(s) 2021.

Structured keywords

  • QETLabs
  • Bristol Quantum Information Institute
  • Photonics and Quantum


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