Backscattering suppression in nonreciprocal ring resonators
- Conference date: 3–5 November 2010
- Location: Bad Honnef, (Germany)
Faraday effect in ring resonators leads to the resonance splitting of clockwise and counter‐clockwise propagating modes. Thus the backscattering into counter propagating mode of the ring resonator due to the roughness or periodical corrugation of the ring side walls can be suppressed by the Faraday effect. Based on that property, we propose here a novel ring resonator switch. The resonance of the corrugated 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 perturbation, but suppressed.
- Faraday effect
- Coupled resonators
- Magnetic fields
- Magnetic resonance
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