Four-channel parity-time symmetry

ÖZGÜN E., ÖZBAY E., Ozdur I.

EPL, vol.140, no.1, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 140 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.1209/0295-5075/ac932f
  • Journal Name: EPL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Linguistic Bibliography, Metadex, zbMATH, Civil Engineering Abstracts
  • Hacettepe University Affiliated: Yes


& nbsp;In this letter, we propose a general scheme for four-channel parity-time symmetry. We theoretically demonstrate how to achieve novel features via exploiting the parity-time sym-metry for four-channel coupled-mode equations and study the spontaneous symmetry breaking manifold, separating the parity-time symmetric and parity-time broken regimes, for various pa-rameter configurations. We also propose a possible candidate (an optoelectronic oscillator) which can demonstrate the theoretically derived features, which include broadband tunability, eigenfre-quency selection and flipping, and single/dual frequency operation regimes. Copyright & nbsp;(c)& nbsp;2022 EPLA