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26 August 2015 Slow light generated via Brillouin scattering in small core chalcogenide photonic crystal fiber
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Abstract
In this paper, we have calculated the highly efficient generation of the slow light based on the Stimulated Brillouin scattering (SBS) in a small core As2Se3 chalcogenide PCF. A Brillouin gain coefficient, gB. of 9.05 10-9 m.W-1 is found around the acoustic frequency of 8.08 GHz in small core diameter of 1.69 μm with 1.5 μm2 effective mode area at 1550 nm. A Brillouin gain of 77.3 dB was achieved with only 10 mW pump power in a 10-m fiber length, which leads to the optical time delay of 94 ns. In terms of the proposed figure of merit, it shows 2.77 dB/mW/m which is about 110 times more efficient than conventional single-mode fibers. These fibers are expected to have potential applications in realization of compact slow light devices.
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A. Baili, R. Cherif, A. Ben Salem, A. Kumar, R. K. Sinha, and M. Zghal "Slow light generated via Brillouin scattering in small core chalcogenide photonic crystal fiber", Proc. SPIE 9586, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IX, 95860P (26 August 2015); https://doi.org/10.1117/12.2188418
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