High-Q bismuth-silicate nonlinear glass microsphere resonators

Pengfei Wang, Ganapathy Senthil Murugan, Timothy Lee, Ming Ding, Gilberto Brambilla, Yuliya Semenova, Qiang Wu, F. Koizumi, Gerald Farrell

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)1013-1020
JournalIEEE Photonics Journal
Issue number3
Publication statusPublished - 2012


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