Kang, Gumin Krogstad, Molly R. Grayson, Michael Kim, Dae-Gon Lee, Hansuek Gopinath, Juliet T. Park, Wounjhang 2024-01-20T01:04:17Z 2024-01-20T01:04:17Z 2021-09-04 2017-06-26 1094-4087 https://pubs.kist.re.kr/handle/201004/122612 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(5) in the near-infrared region. We also measured the effective thermo-optic coefficient of the device to be 5.5x10(-5)/K, which agreed well with the bulk value. Thermal drift of the device can be significantly reduced by introducing a titanium dioxide cladding layer with a negative thermo-optic coefficient. (C) 2017 Optical Society of America English OPTICAL SOC AMER WAVE-GUIDES INDEX FILMS High quality chalcogenide-silica hybrid wedge resonator Article 10.1364/OE.25.015581 1 OPTICS EXPRESS, v.25, no.13, pp.15581 - 15589 OPTICS EXPRESS 25 13 15581 15589 scie scopus 000404189800146 2-s2.0-85021352978 Optics Optics Article WAVE-GUIDES INDEX FILMS