Model for calculating the mode coupling coefficients of a curved optical fiber

Vladimir A. Burdin; Anton V. Bourdine; Kirill A. Volkov; Oleg R. Delmukhametov; Eugenia Y. Eremchuk; Denis E. Praporshchikov

doi:10.1117/12.2566449

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22 May 2020 Model for calculating the mode coupling coefficients of a curved optical fiber

Vladimir A. Burdin, Anton V. Bourdine, Kirill A. Volkov, Oleg R. Delmukhametov, Eugenia Y. Eremchuk, Denis E. Praporshchikov

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Proceedings Volume 11516, Optical Technologies for Telecommunications 2019; 115160Q (2020) https://doi.org/10.1117/12.2566449
Event: XVII International Scientific and Technical Conference "Optical Technologies for Telecommunications", 2019, Kazan, Russian Federation

Abstract

The work presents an approximate solution for the mode coupling of a curved optical fiber. Formulas for calculating the mode coupling coefficients are obtained from the Gauss approximation method. As an example, the results of the calculation of the mode coupling coefficients of a curved optical fiber with a limited parabolic refractive index profile for the proposed formulas are given. Calculations have shown that even relatively small bends of an optical fiber result in a mode coupling between modes of different azimuthal order. At the same time, mode coupling of different azimuthal order increases with reduction of bend radius and mode coupling of the same azimuthal order practically does not depend on it.

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Vladimir A. Burdin, Anton V. Bourdine, Kirill A. Volkov, Oleg R. Delmukhametov, Eugenia Y. Eremchuk, and Denis E. Praporshchikov "Model for calculating the mode coupling coefficients of a curved optical fiber", Proc. SPIE 11516, Optical Technologies for Telecommunications 2019, 115160Q (22 May 2020); https://doi.org/10.1117/12.2566449

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