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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">10.55648/1998-6920-2021-15-1-78-86</article-id><article-id custom-type="elpub" pub-id-type="custom">sibsutis-45</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>Основные принципы мониторинга информационной безопасности в физических каналах оптических сетей доступа</article-title><trans-title-group xml:lang="en"><trans-title>Basic principles of information security monitoring in physical channels of optical access networks</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>Горлов</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorlov</surname><given-names>N. ..</given-names></name></name-alternatives><email xlink:type="simple">gorlovnik@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><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. ..</given-names></name></name-alternatives><email xlink:type="simple">bogachkov@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Квиткова</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kvitkova</surname><given-names>I. ..</given-names></name></name-alternatives><email xlink:type="simple">irin.creme@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>СибГУТИ</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><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>03</month><year>2021</year></pub-date><volume>0</volume><issue>1</issue><fpage>78</fpage><lpage>86</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Горлов Н.И., Богачков И.В., Квиткова И.Г., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Горлов Н.И., Богачков И.В., Квиткова И.Г.</copyright-holder><copyright-holder xml:lang="en">Gorlov N..., Bogachkov I..., Kvitkova I...</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/45">https://vestnik.sibsutis.ru/jour/article/view/45</self-uri><abstract><p>В статье излагаются теоретические сведения о методах съема информации с оптических волокон. Из проанализированных способов наиболее простым является изгиб оптического волокна при нарушении условий полного внутреннего отражения. Приводится функциональная зависимость потерь и уровня излучаемой мощности от параметров и геометрии изгиба оптического волокна. В этом случае в системе мониторинга для обнаружения изгибов волокон контролируются внесенные потери. Приведена структура, принципы функционирования, а также тенденции развития комплексов мониторинга. Представлены основные технические характеристики устройств регистрации оптического излучения</p></abstract><trans-abstract xml:lang="en"><p>The article presents theoretical information about the methods of information retrieval from optical fibers. The simplest analyzed method is the bending of the optical fiber when violating the conditions of total internal reflection. The functional dependence of the losses and the level of radiated power on the parameters and bending geometry of the optical fiber are given. In this case, the introduced losses are monitored in the monitoring system for detecting fiber bends. The structure, principles of operation, and trends in the development of monitoring systems are presented. The main technical characteristics of optical radiation detection devices are demonstrated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>волоконно-оптическая линия связи</kwd><kwd>защита информации</kwd><kwd>комплекс мониторинга</kwd><kwd>рефлектометрия</kwd><kwd>изгиб</kwd><kwd>несанкционированный доступ</kwd><kwd>канал утечки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fiber-optic communication line</kwd><kwd>information protection</kwd><kwd>monitoring system</kwd><kwd>reflec-tometry</kwd><kwd>bending</kwd><kwd>unauthorized access</kwd><kwd>leak channel</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">Marcuse D. 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