High-Q bismuth-silicate nonlinear glass microsphere resonators

Wang, Pengfei, Murugan, Ganapathy Senthil, Lee, Timothy, Ding, Ming, Brambilla, Gilberto, Semenova, Yuliya, Wu, Qiang, Koizumi, F. and Farrell, Gerald (2012) High-Q bismuth-silicate nonlinear glass microsphere resonators. IEEE Photonics Journal, 4 (3). pp. 1013-1020. ISSN 1943-0655

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Official URL: http://dx.doi.org/10.1109/JPHOT.2012.2202385

Abstract

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.

Item Type: Article
Uncontrolled Keywords: optical resonators, Q factor, photothermal effects
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 22 May 2015 15:17
Last Modified: 24 Oct 2017 08:53
URI: http://nrl.northumbria.ac.uk/id/eprint/22540

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