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Opt Express. 2017 Jun 26;25(13):15581-15589. doi: 10.1364/OE.25.015581.

High quality chalcogenide-silica hybrid wedge resonator.

Optics express

Gumin Kang, Molly R Krogstad, Michael Grayson, Dae-Gon Kim, Hansuek Lee, Juliet T Gopinath, Wounjhang Park

PMID: 28788980 DOI: 10.1364/OE.25.015581

Abstract

Chalcogenide glasses, with high nonlinearity and low loss, have captured research interest as an integrated device platform for near- and mid-infrared nonlinear optical devices. Compared to silicon-based microfabrication technologies, chalcogenide fabrication processes are less mature and a major challenge is obtaining high quality devices. In this paper, we report a hybrid resonator design leveraging a high quality silica resonator to achieve high Q factors with chalcogenide. The device is composed of a thin chalcogenide layer deposited on a silica wedge resonator. The hybrid resonators exhibit loaded Q factors up to 1.5 x 10

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