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Integrated non reciprocal ring resonators

D. Jalas, A. Petrov, M. Krause, J. Hampe, M. Eich, Integrated non reciprocal ring resonators International Conference on Optical, Electronic Materials and Applications (OEMA), Chongqing, China, 4-6 March (published in Advanced Materials Research, vol. 216, pp. 533-538), (2011)

Abstract: We 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 magnetooptical 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.

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