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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">sibsutis</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник СибГУТИ</journal-title><trans-title-group xml:lang="en"><trans-title>The Herald of the Siberian State University of Telecommunications and Information Science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6920</issn><publisher><publisher-name>СибГУТИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55648/1998-6920-2021-15-2-88-99</article-id><article-id custom-type="elpub" pub-id-type="custom">sibsutis-55</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Определение профиля спектра рассеяния Мандельштама-Бриллюэна в оптических волокнах различных видов</article-title><trans-title-group xml:lang="en"><trans-title>Determination of the Mandelstam-Brillouin scatter spectrum profile in optical fibers of various types</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богачков</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogachkov</surname><given-names>I. V.</given-names></name></name-alternatives><email xlink:type="simple">bogachkov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ОмГТУ</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>18</day><month>06</month><year>2021</year></pub-date><volume>0</volume><issue>2</issue><fpage>88</fpage><lpage>99</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Богачков И.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Богачков И.В.</copyright-holder><copyright-holder xml:lang="en">Bogachkov I.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik.sibsutis.ru/jour/article/view/55">https://vestnik.sibsutis.ru/jour/article/view/55</self-uri><abstract><p>В статье приведены результаты исследований частотных характеристик рассеяния Мандельштама-Бриллюэна в одномодовых оптических волокнах. Рассмотрена методика получения характеристик распределения оптических и акустических мод в одномодовых оптических волокнах. Представлен порядок определения профиля спектра рассеяния Мандельштама-Бриллюэна при известной структуре волокна. Приведены профили спектра рассеяния Мандельштама-Бриллюэна одномодовых оптических волокон, полученные при экспериментальных исследованиях.</p></abstract><trans-abstract xml:lang="en"><p>The research results of the frequency characteristics of the Mandelstam-Brillouin scattering in single-mode optical fibers are presented in this article. A method for obtaining the distribution characteristics of optical and acoustic modes in single-mode optical fibers is considered. The procedure for determining the profile of the Mandelstam-Brillouin scatter spectrum with known fiber structure is demonstrated. The profiles of the Mandelstam-Brillouin scatter spectrum of singlemode optical fibers obtained during experimental studies are presented.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>одномодовое оптическое волокно</kwd><kwd>структура сердечника волокна</kwd><kwd>акустическая мода</kwd><kwd>ранняя диагностика состояния волокон</kwd><kwd>бриллюэновская рефлектометрия</kwd><kwd>профиль спектра рассеяния Мандельштама-Бриллюэна</kwd></kwd-group><kwd-group xml:lang="en"><kwd>single-mode optical fiber</kwd><kwd>fiber core structure</kwd><kwd>acoustic mode</kwd><kwd>early diagnostic of the fiber state</kwd><kwd>Brillouin reflectometry</kwd><kwd>Mandelstam-Brillouin scatter spectrum profile</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Богачков И. В., Горлов Н. И. Поиск предаварийных участков в оптических волокнах с помощью рефлектометров // Вестник СибГУТИ. 2018. В. 3. 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