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DOE OSTI · 22412586

Lead-silicate glass optical microbubble resonator

Wang, Pengfei·Ward, Jonathan·Yang, Yong·Chormaic, Síle Nic·Feng, Xian·Brambilla, Gilberto·Farrell, Gerald
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Abstract

Microbubble whispering gallery resonators have the potential to become key components in a variety of active and passive photonic circuit devices by offering a range of significant functionalities. Here, we report on the fabrication, optical characterization, and theoretical analysis of lead-silicate glass and optical microbubble resonators. Evanescent field coupling to the microbubbles was achieved using a 1 μm diameter, silica microfiber at a wavelength of circa 775 nm. High Q-factor modes were efficiently excited in both single-stem and two-stem, lead-silicate glass, and microbubble resonators, with bubble diameters of 38 μm (single-stem) and 48 μm (two-stem). Whispering gallery mode resonances with Q-factors as high as 2.3 × 10{sup 5} (single-stem) and 7 × 10{sup 6} (two-stem) were observed. By exploiting the high-nonlinearity of the lead-silicate glass, this work will act as a catalyst for studying a range of nonlinear optical effects in microbubbles, such as Raman scattering and four-wave mixing, at low optical powers.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSBUBBLESCATALYSTSCOUPLINGFABRICATIONFREQUENCY MIXINGGLASSLEAD SILICATESNONLINEAR PROBLEMSRAMAN EFFECTRESONANCERESONATORSSILICAWAVELENGTHS

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Wang, Pengfei, Ward, Jonathan, Yang, Yong, Chormaic, Síle Nic, Feng, Xian, Brambilla, Gilberto, Farrell, Gerald. 2015-02-09. Lead-silicate glass optical microbubble resonator. https://doi.org/10.1063/1.4908054

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