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18 November 2019 Reflection of whispering gallery modes propagating on the optical fiber surface from its facet
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Abstract
We show that whispering gallery modes on the surface of optical fibers can be reflected from the optical fiber facet. Due to reflection, a locking effect occurs near the optical fiber facet for the whispering gallery modes with an axial component of the wave vector. We obtained an analytical expression for determining the resonant wavelengths. We also experimentally measured the phase velocity of the optical pulse propagating in whispering gallery modes and reflecting from the fiber facet.
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Zhiyong Han, Ilya D. Vatnik, and D. V. Churkin "Reflection of whispering gallery modes propagating on the optical fiber surface from its facet", Proc. SPIE 11193, Nanophotonics and Micro/Nano Optics V, 111930Q (18 November 2019); https://doi.org/10.1117/12.2537802
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