Theory of gyrotropic ring resonators with counterpropagating modes coupling

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Autor/in:
Verlag/Körperschaft:
Hamburg University of Technology
Erscheinungsjahr:
2011
Medientyp:
Text
Schlagworte:
  • Backscattering
  • Magneto-optical
  • Non-reciprocal
  • Ring resonator
  • 530: Physik
  • 600: Technik
  • 620: Ingenieurwissenschaften
Beschreibung:
  • The Faraday effect in ring resonators leads to the resonance splitting of clockwise and counter-clockwise propagating modes. In this work we investigate how this resonance splitting influences the ring resonator's behavior if both modes are coupled by a sidewall corrugation of the resonator. Coupled mode theory is used to evaluate the transmission and reflection characteristics of a ring resonator coupled to a waveguide. Based on these evaluations, we characterize a novel ring resonator switch. The resonance of the corrugated gyrotropic resonator coupled to a waveguide can be switched off by the application of the external magnetic field. In this case, the resonance is not shifted, as what typically occurs at small perturbations, but suppressed. © 2011 Elsevier B.V. All rights reserved.
Beziehungen:
DOI 10.1016/j.photonics.2011.04.013
Quellsystem:
TUHH Open Research
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Quelldatensatz
oai:tore.tuhh.de:11420/13316