Jalas, DirkDirkJalasPetrov, AlexanderAlexanderPetrovKrause, MichaelMichaelKrauseHampe, JanJanHampeEich, ManfredManfredEich2023-10-302023-10-302011Advanced Materials Research 216: 533-538 (2011)978-3-03785-073-2https://hdl.handle.net/11420/43959We present the theoretical concept of an optical isolator based on a resonance splitting in a silicon ring resonators covered by a magneto-optical polymer cladding. A polymer magneto optical cladding causing a 0.01 amplitude of the off-diagonal element of the dielectric tensor is assumed. Using a perturbation method it is shown that the resonance splitting of the clockwise and counter-clockwise modes increases for smaller ring radii. For the ring with a radius of approximately 1.5μm a 29GHz splitting is demonstrated. An optical isolator is proposed based on a critically coupled ring resonator. © (2011) Trans Tech Publications.enGeotropicMagneto-opticOptical isolatorPolymerResonance splittingRing resonatorPhysicsEngineering and Applied OperationsConference Paper10.4028/www.scientific.net/AMR.216.533Conference Paper