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Regular version of the site

Article

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

Journal of Physics: Conference Series. 2018. Vol. 1124. No. 5. P. 1-4.
An P., Kovalyuk V., Golikov A., Zubkova E., Ferrari S., Korneev A., Pernice W., Goltsman G.

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 Q 3