Lead Silicate Glass Microsphere Resonators With Absorption-Limited Q

Authors

Pengfei Wang, Technological University DublinFollow
Genapathy Murugan, University of Southampton
Timothy Lee, University of Southampton
Xian Feng, University of Southampton
Yuliya Semenova, Technological University DublinFollow
Qiang Wu, Technological University DublinFollow
Wei Loh, University of Southampton
Gilberto Brambilla, University of Southampton
James Wilkinson, University of Southampton
Gerald Farrell, Technological University DublinFollow

Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

Electrical and electronic engineering, Communication engineering and systems

Publication Details

Applied Physics Letters, Vol. 98, 18,2011, 181105

ttp://dx.doi.org/10.1063/1.3586771

Abstract

We report the fabrication and characterization of a lead-silicate glass microsphere resonator. We show that at the wavelengths near 1555 nm high Q modes can be efficiently excited from a 109 μm diameter lead-silicate glass microsphere via evanescent coupling using a tapered silica fiber with a waist diameter of 2 μm. Resonances with Q-factors as high as 0.9×10⁷ were observed. This is very close to the theoretical material-limited Q-factor and is the highest Q-factor reported so far from a nonlinear glass microsphere.

DOI

https://doi.org/10.1063/1.3586771

Recommended Citation

Wang, P. et al: Lead silicate glass microsphere resonators with absorption-limited Q. Applied Physics Letters, Vol. 98, 18,2011, 181105. doi:10.1063/1.3586771