High-Q Bismuth-Silicate Nonlinear Glass Microsphere Resonators

IEEE Photonics Journal

Pengfei Wang¹  Fumihito Koizumi²  Ganapathy Senthil Murugan³  Timothy Lee⁴  Gilberto Brambilla⁴  Ming Ding⁴  Gerald Farrell⁵  Yuliya Semenova⁵  Qiang Wu⁵ 

[1] $^{1}$Optoelectronics Research Centre, University of Southampton, Southampton, U.K.;$^{3}$Technology Management Group, Asahi Glass Co., Ltd., Yokohama, Japan;Optoelectronics Research Centre, University of Southampton, Southampton , U.K.;Optoelectronics Research Centre, University of Southampton, Southampton, U.K.;Photonics Research Centre, Dublin Institute of Technology, Dublin 8, Ireland;

关键词: Optical resonators;    Q factor;    photothermal effects;   

DOI  :  10.1109/JPHOT.2012.2202385

来源: DOAJ

【 摘 要 】

The fabrication and characterization of a bismuth-silicate glass microsphere resonator has been demonstrated. At wavelengths near 1550 nm, high-modes can be efficiently excited in a 179-μm diameter bismuth-silicate glass microsphere via evanescent coupling using a tapered silica fiber with a waist diameter of circa 2 μm. Resonances with Q-factors as high as were observed. The dependence of the spectral response on variations in the input power level was studied in detail to gain an insight into power-dependent thermal resonance shifts. Because of their high nonlinearity and high- factors, bismuth-silicate glass microspheres offer the potential for robustly assembled fully integrated all-optical switching devices.

【 授权许可】

Unknown