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Langevin Equation Approach to Mode Coupling in Heated Step-Index Plastic Optical Fibers

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Journal of Russian Laser Research Aims and scope

Abstract

The Langevin equation is used to investigate the state of mode coupling in step-index plastic optical fibers under varied temperature. The numerical integration of the Langevin equation is based on the computer-simulated Langevin force. The solution matches the experimental data reported previously. We find that elevated temperatures of plastic optical fibers are strengthening mode coupling. We show that, solving the Langevin equation (stochastic differential equation), one can treat a mode coupling in heated multimode step-index plastic optical fibers, which is a result of fiber’s intrinsic random perturbations.

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Authors and Affiliations

  1. Faculty of Science, University of Kragujevac, R. Domanovića 12, Kragujevac, 34000, Serbia

    Svetislav Savović

  2. City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong, China

    Svetislav Savović & Alexandar Djordjevich

Authors
  1. Svetislav Savović
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  2. Alexandar Djordjevich
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Correspondence to Svetislav Savović.

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Savović, S., Djordjevich, A. Langevin Equation Approach to Mode Coupling in Heated Step-Index Plastic Optical Fibers. J Russ Laser Res 42, 154–160 (2021). https://doi.org/10.1007/s10946-021-09944-7

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  • DOI: https://doi.org/10.1007/s10946-021-09944-7

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