Instrumental mode distribution measurement

Irina L. Vinogradova; Aydar I. Salikhov; Ivan K. Meshkov; Azat R. Gizatulin; Artemiy A. Kharenko; Albert Kh. Sultanov; Valeriy Kh. Bagmanov

doi:10.1117/12.2632151

25 July 2022 Instrumental mode distribution measurement

Irina L. Vinogradova, Aydar I. Salikhov, Ivan K. Meshkov, Azat R. Gizatulin, Artemiy A. Kharenko, Albert Kh. Sultanov, Valeriy Kh. Bagmanov

Author Affiliations +

Proceedings Volume 12295, Optical Technologies for Telecommunications 2021; 1229518 (2022) https://doi.org/10.1117/12.2632151
Event: Nineteenth International Scientific and Technical Conference "Optical Technologies for Communications", 2021, Samara, Russian Federation

Abstract

In this article the principle of instrumental (experimental) determination of the parameters of mode compositions of an optical signal propagating along an optical fiber is described. The measurement scheme is based on the use of a wellknown experimental setup designed to obtain the profile of the refractive index of an optical fiber. In addition to that setup, it is proposed to perform measurements for different angular positions of the investigated optical fiber, and for its different longitudinal positions. The proposed method is realizable in the case when the signal propagating through the optical fiber is characterized by increased intensity, which makes it possible to measure a nonlinear (Kerr) caused addition to the refractive index. It is proposed to calculate the desired mode weight coefficients by the method of probabilistic selection according to the developed method.

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Irina L. Vinogradova, Aydar I. Salikhov, Ivan K. Meshkov, Azat R. Gizatulin, Artemiy A. Kharenko, Albert Kh. Sultanov, and Valeriy Kh. Bagmanov "Instrumental mode distribution measurement", Proc. SPIE 12295, Optical Technologies for Telecommunications 2021, 1229518 (25 July 2022); https://doi.org/10.1117/12.2632151

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