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Experimental optimisation of O-ring resonator Q-factor for on-chip spontaneous four wave mixing

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, , Citation P An et al 2018 J. Phys.: Conf. Ser. 1124 051047 DOI 10.1088/1742-6596/1124/5/051047

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1 Department of Physics, Moscow State Pedagogical University, 119992, Russia

2 Zavoisky Physical-Technical Institute of the Russian Academy of Sciences, 420029, Russia

3 Institute of Physics, University of Münster, 48149, Germany

4 CeNTech - Center for Nanotechnology, University of Münster, 48149, Germany

5 Moscow Institute of Physics and Technology (State University), 141700, Russia

6 National Research University Higher School of Economics, Moscow 101000, Russia

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1742-6596/1124/5/051047

Abstract

In this paper we experimentally studied the influence of geometrical parameters of the planar O-ring resonators on its Q-factor and losses. We systematically changed the gap between the bus waveguide and the ring, as well as the width of the ring. We found the highest Q = 5×105 for gap 2.0 μm and the ring width 2 μm. This work is important for further on-chip SFWM applications since the generation rate of the biphoton field strongly depends on the quality factor as Q3

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10.1088/1742-6596/1124/5/051047