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16 February 2017 Stimulated Raman scattering in AsSe2-As2S5 microstructured optical fiber
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Proceedings Volume 10100, Optical Components and Materials XIV; 101001O (2017)
Event: SPIE OPTO, 2017, San Francisco, California, United States
We demonstrate the effects of stimulated Raman scattering (SRS) in the all-solid-core chalcogenide microstructured optical fibers (MOFs) with AsSe2 core and As2S5 cladding, which are fabricated by the rod-in-tube drawing technique. The core diameters of the MOFs are ~6.3 (Fiber I), 3.0 (Fiber II), 2.6 (Fiber III) and 2.2 (Fiber IV) μm, respectively. The chromatic dispersion of the fundamental mode in Fibers I-IV is simulated by the full-vectorial mode solver technique. The first-order Stokes wave is investigated in the fibers with different core diameters pumped by the picosecond pulses at 1958 nm. In Fiber I, no obvious Raman peak is observed with the pump power increasing, because the effective nonlinearity is not high. In Fiber II, a Raman Stokes peak at ~2065 nm begins to emerge at the pump power of 110 mW. The conversion efficiency is as weak as -36.6 dB at 150 mW pumping. In Fiber III, the first-order Raman peak at ~2060 nm begins to emerge at 40 mW pumping. The conversion efficiency is -15.0 dB, which is 21.6 dB higher than that in Fiber II. In Fiber IV, the Stokes peak at 2070 nm begins to appear at 56 mW pumping. The maximum conversion efficiency of the first-order Stokes wave is obtained in the MOF with the core diameter of 2.6 μm. The evolution of the first-order Stokes wave with pump power and fiber length is investigated. This is the first demonstration of Raman effects in the AsSe2-As2S5 MOF, to the best of our knowledge.
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Weiqing Gao, Chenquan Ni, Qiang Xu, Xue Li, Xiangcai Chen, Li Chen, Zhenqiang Wen, Tonglei Cheng, Xiaojie Xue, Takenobu Suzuki, and Yasutake Ohishi "Stimulated Raman scattering in AsSe2-As2S5 microstructured optical fiber", Proc. SPIE 10100, Optical Components and Materials XIV, 101001O (16 February 2017);

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