High-Q Bismuth-Silicate Nonlinear Glass Microsphere Resonators

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 d...

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Bibliographic Details
Published inIEEE photonics journal Vol. 4; no. 3; pp. 1013 - 1020
Main Authors Pengfei Wang, Murugan, G. S., Lee, Timothy, Ming Ding, Brambilla, G., Semenova, Y., Qiang Wu, Koizumi, F., Farrell, G.
Format Journal Article
LanguageEnglish
Published IEEE 01.06.2012
Subjects
Bismuth
Glass
Nonlinear optics
Optical fiber communication
Optical fibers
Optical resonators
photothermal effects
Q factor
Silicon compounds
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Summary: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.
ISSN:1943-0655
1943-0655
1943-0647
DOI:10.1109/JPHOT.2012.2202385