Analysis of stimulated Brillouin scattering in multi-mode fiber by numerical solution |
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| Authors: | Zhou Tao Chen Jun |
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| Institution: | (1) The State Key Lab of Modern Optical Instrumentation, Zhejiang University, 310027 Hangzhou, China |
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| Abstract: | Stimulated Brillouin scattering in optical fibers is described by a theoretical model and numerical analysis. The results
showed that, for an optical fiber pumped by a laser beam with ns-order-pulse width and kW-order peak-power, SBS reflectivity
tends to saturate when the fiber length exceeds a limit, named “effective fiber length”. Using small core-diameter and long
enough fiber, the SBS reflectivity level could be raised but is limited by optical damage of the entrance surface of the fiber.
Therefore, just a small dynamic range can be obtained.
Project supported by the Bundesminesterium für Bildung und Forschung (BMBF), the key Foundation of Education Ministry of China
and National Natural Science Foundation of China (NSFC No. 69578017). |
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| Keywords: | Optical fiber Phase conjugation Stimulated Brillouin scattering |
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