Packaged chalcogenide microsphere resonator with high Q-factor

Wang, Pengfei, Ding, Ming, Lee, Timothy, Senthil Murugan, Ganapathy, Bo, Lin, Semenova, Yuliya, Wu, Qiang, Hewak, Dan, Brambilla, Gilberto and Farrell, Gerald (2013) Packaged chalcogenide microsphere resonator with high Q-factor. Applied Physics Letters, 102 (13). p. 131110. ISSN 0003-6951

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Abstract

The fabrication and characterization of a packaged As2S3 microsphere resonator coupled to a tapered fiber using a low refractive index UV-curable polymer are reported. Embedding provides an efficient means to remove the highest order whispering gallery modes in the microsphere resonator, thus cleaning the resonator spectrum. At wavelengths near 1549.5 nm, high-Q modes up to 1.8 × 105 can be efficiently excited in a 110 μm diameter chalcogenide microsphere via evanescent coupling from a 2 μm diameter tapered silica fiber. The device photosensitivity, useful for tuning, is still present and useable after the packaging process.

Item Type:	Article
Subjects:	F300 Physics H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Ay Okpokam
Date Deposited:	22 May 2015 13:27
Last Modified:	12 Oct 2019 19:07
URI:	http://nrl.northumbria.ac.uk/id/eprint/22530

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