Lithium-Niobate-Silica Hybrid Whispering-Gallery-Mode Resonators

Fang Bo; Jie Wang; Jiao Cui; Sahin Kaya Ozdemir; Yongfa Kong; Guoquan Zhang; Jingjun Xu; Lan Yang

doi:10.1002/adma.201504722

Lithium-Niobate-Silica Hybrid Whispering-Gallery-Mode Resonators

Adv Mater. 2015 Dec 22;27(48):8075-81. doi: 10.1002/adma.201504722. Epub 2015 Nov 16.

Authors

Fang Bo^{1

2}, Jie Wang¹, Jiao Cui¹, Sahin Kaya Ozdemir², Yongfa Kong¹, Guoquan Zhang¹, Jingjun Xu¹, Lan Yang²

Affiliations

¹ The MOE Key Laboratory of Weak Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin, 300457, China.
² Department of Electrical and Systems Engineering, Washington University, St. Louis, MO, 63130, USA.

PMID: 26568169
DOI: 10.1002/adma.201504722

Abstract

Lithium-niobate-silica hybrid resonators with quality factors higher than 10(5) are fabricated by depositing a layer of polycrystalline lithium niobate on the flat top surfaces of inverted-wedge silica microdisk resonators. All-optical modulation with improved performance over silica-only resonators and electro-optic modulation not achievable in silica-only resonators are realized in the hybrid resonators.

Keywords: electro-optic modulation; lithium niobate; microcavities; optical modulation; whispering gallery modes.