Transmittance and near-field characterization of sub-wavelength tapered optical fibers

Optics express 15, 21 (2007) 13624-13629 We have produced high transmission sub-wavelength tapered optical fibers for the purpose of whispering gallery mode coupling in fused silica microcavities at 780 nm. A detailed analysis of the fiber transmittance evolution during tapering is demonstrated to r...

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Bibliographic Details
Main Authors Orucevic, Fedja, Lefèvre-Seguin, Valérie, Hare, Jean
Format Journal Article
LanguageEnglish
Published 20.02.2008
Subjects
Physics - Quantum Physics
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Summary:Optics express 15, 21 (2007) 13624-13629 We have produced high transmission sub-wavelength tapered optical fibers for the purpose of whispering gallery mode coupling in fused silica microcavities at 780 nm. A detailed analysis of the fiber transmittance evolution during tapering is demonstrated to reflect precisely the mode coupling and cutoff in the fiber. This allows to control the final size, the number of guided modes and their effective index. These results are checked by evanescent wave mapping measurements on the resulting taper.
DOI:10.48550/arxiv.0802.2814