3 April 2008 Q-factor and waveguide-sphere separation effects in waveguide-coupled microsphere resonators
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Proceedings Volume 6793, International Workshop and Conference on Photonics and Nanotechnology 2007; 67930E (2008) https://doi.org/10.1117/12.799260
Event: International Workshop and Conference on Photonics and Nanotechnology 2007, 2007, Pattaya, Thailand
Abstract
Quality-factors of waveguide coupled microsphere resonators of 30 μm diameter are measured. A Teflon buffer layer is deposited on the waveguide to separate the microsphere from the waveguide and the effect of this separation on the measured quality-factor is discussed. The whispering-gallery mode propagation along the cavity of the microsphere as well as the optical path lengths of the modes are determined; the experimental and theoretical data are compared and discussed. A five-fold increase of the Q-factor was obtained by increasing the sphere-waveguide separation.
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Y. Panitchob, G. Senthil Murugan, M. N. Zervas, J. S. Wilkinson, "Q-factor and waveguide-sphere separation effects in waveguide-coupled microsphere resonators", Proc. SPIE 6793, International Workshop and Conference on Photonics and Nanotechnology 2007, 67930E (3 April 2008); doi: 10.1117/12.799260; https://doi.org/10.1117/12.799260
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