Optical isolation using compact time-modulated cavity array

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2 Scopus citations


It is shown using coupled mode theory and verified using finite-difference time-domain simulations how a time-modulated three-cavity array can be designed to allow transmission from port 1 to port 2 but to prevent transmission from port 2 to port 1 thereby implementing optical isolation. The reciprocity of the system is broken by phase-shifting the modulation signal applied to each cavity by 120 degrees which gives the system a synthetic linear momentum.

Original languageEnglish
Pages (from-to)1276-1277
Number of pages2
JournalApplied Computational Electromagnetics Society Journal
Issue number11
StatePublished - Nov 2020


  • Cavity resonators
  • Finite-difference time-domain method
  • Isolators
  • Time-varying circuits


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