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Fiber taper coupling to chalcogenide microsphere modes

Appl. Phys. Lett. 92, 171109 (2008); doi:10.1063/1.2918128

Published 30 April 2008

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Christian Grillet, Shu Ning Bian, Eric C. Magi, and Benjamin J. Eggleton
Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, Sydney, New South Wales 2042, Australia
We report the fabrication and optical characterization of microsphere in chalcogenide (As2Se3). We show that high Q modes of a 9.2  µm diameter chalcogenide glass can be efficiently excited via evanescent coupling using a silica tapered fiber. Loaded Q factors of more than 20 000 have been measured. Fine analysis of the coupling spectrum around 1619  nm led to an estimation of the microsphere eccentricity of less than 1%. Owing to the unique combination properties of chalcogenide glass and the microspheres geometry, we expect this architecture to offer an ideal environment for versatile applications on both the telecommunication and midinfrared wavelength windows. ©2008 American Institute of Physics
History: Received 23 January 2008; accepted 10 April 2008; published 30 April 2008
Permalink: http://link.aip.org/link/?APPLAB/92/171109/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.81.Bm
    Optical fiber fabrication, cladding, and splicing
  • 42.82.Cr
    Optical fabrication techniques; lithography, pattern transfer (integrated optics)
  • 81.05.Kf
    Glasses: fabrication, treatment, testing and analysis
  • 81.05.Gc
    Amorphous semiconductors: fabrication, treatment testing and analysis
  • YEAR: 2008

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ISSN:
0003-6951 (print)   1077-3118 (online)
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