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arXiv · 1311.6382

Inverted-wedge silica resonators for controlled and stable coupling

Fang Bo·Steven He Huang·Sahin Kaya Ozdemir·Guoquan Zhang·Jingjun Xu·Lan Yang
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Abstract

Silica microresonators with an inverted-wedge shape were fabricated using conventional semiconductor fabrication methods. The measured quality factors of the resonators were greater than $10^6$ in 1550 nm band. Controllable coupling from under coupling, through critical coupling, to over coupling was demonstrated by horizontally moving a fiber taper while in touch with the top surface of the resonator. Thin outer ring of the resonator provided a support for the fiber taper leading to a robust stable coupling.

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Fang Bo, Steven He Huang, Sahin Kaya Ozdemir, Guoquan Zhang, Jingjun Xu, Lan Yang. 2013-11-25. Inverted-wedge silica resonators for controlled and stable coupling. https://doi.org/10.1364/ol.39.001841

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