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title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Research of the method of frequency averaging for multimode fiber interferometer signals
Creators: name: ÐÐµÐ»ÐµÐ²Ð¸Ð½, ÐÐ²Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¼Ð½Ð¾Ð³Ð¾Ð¼Ð¾Ð´Ð¾Ð²ÑÐ¹ Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½Ð½ÑÐ¹ Ð¸Ð½ÑÐµÑÑÐµÑÐ¾Ð¼ÐµÑÑ
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Ð°Ð¼Ð¿Ð»Ð¸ÑÑÐ´Ð½Ð°Ñ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°
multimode fiber interferometer
multimode fiber
mode
frequency modulation
differential phase modulation
amplitude characteristic

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð° ÑÐ°ÑÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÐµÐ´Ð½ÐµÐ½Ð¸Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð¼Ð½Ð¾Ð³Ð¾Ð¼Ð¾Ð´Ð¾Ð²Ð¾Ð³Ð¾ Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÑÑÐµÑÐ¾Ð¼ÐµÑÑÐ°Â».
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description: The subject of the graduate qualification work is: Â« Research of the method of frequency averaging for a multimode fiber interferometer signals Â».
The given work is devoted to the method of averaging signals of a multimode fiber interferometer, in which the radiation wavelength (frequency) varies over a wide range (from 1510 to 1590 nm or 10 THz). The goal was to obtain a linear response resistant to spurious influences by averaging MFI signals while modulating the source frequency. Within the framework of stimulated Raman scattering, the amplitude characteristics of the interferometer were simulated depending on various parameters, such as: the number of excited modes in the fiber, the length of the fiber, the change in its length under the influence of external influences, and the profile of the refractive index. The technique is as follows: the distribution of light intensities from a change in frequency at the initial time is taken and then this distribution is compared with all subsequent ones obtained with some exposure to the fiber. It was shown that the use of frequency modulation allows you to effectively average MFI signals, which leads to linearity in a large range and signal stability when exposed to fading. The results can be useful for evaluating the properties of MFI depending on their parameters, and can also be used to obtain stable characteristics of MFI.