4 March 2014 Whispering-gallery modes excitation in microspheres integrated inside microstructured optical fibers
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A novel, integrated photonic device has been demonstrated, which combines a microstructured optical fiber (MOF) and a Whispering-Gallery Mode (WGM) microsphere resonator encapsulated inside one of its capillaries. Studies have been focused on the light coupling to and from the micro-resonator, as well as, the resonating properties of such a photonic system. Spectral resonation in a spectral band spanning between 500 nm – 1600 nm has been observed, with Q-factors exceeding 2x103 for a single microsphere. Research on the functionality and performance of different fiber/microsphere combinations focuses on the material and size of the microspheres as key parameters for the optimization of the corresponding spectral patterns and Q-factors. This newly developed resonating system constitutes an optical platform with various potential applications.
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Kyriaki Kosma, Kyriaki Kosma, Gianluigi Zito, Gianluigi Zito, Kay Schuster, Kay Schuster, Stavros Pissadakis, Stavros Pissadakis, "Whispering-gallery modes excitation in microspheres integrated inside microstructured optical fibers", Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 896017 (4 March 2014); doi: 10.1117/12.2039424; https://doi.org/10.1117/12.2039424

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