Investigation on optical and acoustic fields of stimulated Brillouin scattering in As2S3 suspended-core optical fibers

Qiang Xu; Weiqing Gao; Xue Li; Chenquan Ni; Xiangcai Chen; Li Chen; Wei Zhang; Jigang Hu; Xiangdong Chen; Zijun Yuan

doi:10.1117/12.2245317

31 October 2016 Investigation on optical and acoustic fields of stimulated Brillouin scattering in As₂S₃ suspended-core optical fibers

Qiang Xu, Weiqing Gao, Xue Li, Chenquan Ni, Xiangcai Chen, Li Chen, Wei Zhang, Jigang Hu, Xiangdong Chen, Zijun Yuan

Author Affiliations +

Proceedings Volume 10019, Optoelectronic Devices and Integration VI; 1001914 (2016) https://doi.org/10.1117/12.2245317
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

The optical and acoustic fields of stimulated Brillouin scattering (SBS) effect in the As₂S₃ chalcogenide suspended-core microstructured optical fibers (MOFs) are investigated by the finite-element method (FEM). The optical and acoustic fundamental modes at 1550 nm are analyzed with the core diameters of the MOFs varying from 1.0 to 6.0 μm. For each case, the holes of the MOFs are filled with different materials such as trichlormethane (CHCL₃), alcohol and water. When the core diameter is 6.0 μm, the maximum peak intensity of the optical fundamental mode is in the case with air holes, while the minimum value is in the case filled with CHCL₃. The ratio of difference is ~0.66%. The minimum peak intensity of the acoustic fundamental mode is in the case with air holes, while the maximum value is in the case filled with water. The ratio of difference is ~0.13%. The same rule occurs in the fiber cores of 4.5, 3.0 and 2.0 μm, where the decreases of ~0.97%, 1.48%, 1.94% for optical field and the increases of ~0.24%, 0.34%, 0.74% for acoustic field are obtained, respectively. When the core diameter is 1.0 μm, ratios of difference for optical and acoustic fields are much higher than those in the cases of 2.0-6.0 μm, which are ~3.55% and 29.13%, respectively. The overlap factors between optical and acoustic fields are calculated, which are changed with the core diameter and the filled material in holes. Our results will be helpful to strengthen or suppress the SBS effect in practical applications.

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Qiang Xu, Weiqing Gao, Xue Li, Chenquan Ni, Xiangcai Chen, Li Chen, Wei Zhang, Jigang Hu, Xiangdong Chen, and Zijun Yuan "Investigation on optical and acoustic fields of stimulated Brillouin scattering in As₂S₃ suspended-core optical fibers", Proc. SPIE 10019, Optoelectronic Devices and Integration VI, 1001914 (31 October 2016); https://doi.org/10.1117/12.2245317

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KEYWORDS

Acoustics

Micro optical fluidics

Optical fibers

Chalcogenides

Scattering

Fiber lasers

Water

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