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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">tuzsut</journal-id><journal-title-group><journal-title xml:lang="ru">Труды учебных заведений связи</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Telecommunication Universities</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-324X</issn><issn pub-type="epub">2712-8830</issn><publisher><publisher-name>СПбГУТ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31854/1813-324X-2021-7-4-18-30</article-id><article-id custom-type="elpub" pub-id-type="custom">tuzsut-208</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>ЭЛЕКТРОНИКА, ФОТОНИКА, ПРИБОРОСТРОЕНИЕ И СВЯЗЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, PHOTONICS, INSTRUMENTATION AND COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Исследование влияния деградации разъемных соединений линейного тракта внутриобъектовых ВОЛП с криптоволокнами на искажение оптических сигналов компактных мультигигабитных сетей передачи данных</article-title><trans-title-group xml:lang="en"><trans-title>Research of Fiber Optic Connector Ferrule End-Face Degradation Influence on Optical Pulse Distortion during Propagation over Indoor Multi-Gigabit Optical Network Link with Crypto-Fibers</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8737-5486</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурдин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bourdine</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, доцент, заместитель генерального директора по научной работе и развитию Научно-производственного объединения «Государственный оптический институт им. С.И. Вавилова», профессор кафедры линий связи и измерений в технике связи Поволжского государственного университета телекоммуникаций и информатики</p><p>Санкт-Петербург, 192171, Российская Федерация</p><p>Самара, 443010, Российская Федерация</p></bio><bio xml:lang="en"><p>St. Petersburg, 192171, Russian Federation</p><p>Samara, 443010, Russian Federation</p></bio><email xlink:type="simple">bourdine@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7898-974X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пашин</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashin</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры линий связи и измерений в технике связи, заместитель директора центра стратегических инициатив Поволжского государственного университета телекоммуникаций и информатики</p></bio><bio xml:lang="en"><p>Samara, 443010, Russian Federation</p></bio><email xlink:type="simple">pashinstanislav@outlook.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-производственное объединение Государственный оптический институт им. С.И. Вавилова; Поволжский государственный университет телекоммуникаций и информатики<country>Россия</country></aff><aff xml:lang="en">Research and Production Association S.I. Vavilov State Optical Institute; Povolzhskiy State University of Telecommunications and Informatics<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Поволжский государственный университет телекоммуникаций и информатики<country>Россия</country></aff><aff xml:lang="en">Povolzhskiy State University of Telecommunications and Informatics<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>12</month><year>2021</year></pub-date><volume>7</volume><issue>4</issue><fpage>18</fpage><lpage>30</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бурдин А.В., Пашин С.С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Бурдин А.В., Пашин С.С.</copyright-holder><copyright-holder xml:lang="en">Bourdine A., Pashin S.</copyright-holder><license 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://tuzs.sut.ru/jour/article/view/208">https://tuzs.sut.ru/jour/article/view/208</self-uri><abstract><p>Представлены результаты апробации модели кусочно-регулярной волоконно-оптической линии передачи, функционирующей в маломодовом режиме с последовательно соединенной парой специализированных многомодовых оптических криптоволокон, выполняющих функции «шифратор ‒ дешифратор». Модель дополнена возможностью учета влияния на условия ввода сигнала с выхода когерентного источника в оптоволоконной линии характера и степени загрязнения торцевой поверхности феррул волоконно-оптических коннекторов. Приведены результаты сопоставления расчетных огибающих искаженных оптических импульсов, распространяющихся в описанных линиях передачи с криптоволокнами сетей спецификации 10GBase-LX, в зависимости от состояния торца феррула коннектора оптоволоконной линии, подключаемого к источнику излучения трансивера.</p></abstract><trans-abstract xml:lang="en"><p>This article presents results of approbation of developed model of piece-wise regular fiber optic link, operating in a few-mode regime, with series-connected couple of special multimode optical crypto-fibers “encryptor-decoder”. Unlike the previously developed solution, the model was modified with an ability to take into account influence of fiber optic connector end-face contamination on laser-excited optical signal launching conditions. We present comparison results of computed optical pulse response envelops, distorted during propagation over 10GBase-LX network fiber optic links, containing optical crypto-fibers, depending on various conditions of transceiver laser source connector ferrule end-face contamination.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>феррул</kwd><kwd>волоконно-оптический коннектор</kwd><kwd>загрязнение феррула</kwd><kwd>торец феррула</kwd><kwd>волоконно-оптическое разъемное соединение</kwd><kwd>коэффициент связи мод</kwd><kwd>структурированные кабельные системы</kwd><kwd>дифференциальная модовая задержка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ferrule</kwd><kwd>fiber optic connector</kwd><kwd>ferrule end-face contamination</kwd><kwd>fiber optic connection</kwd><kwd>mode coupling coefficient</kwd><kwd>structural cable systems</kwd><kwd>differential mode delay</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа подготовлена при финансовой поддержке РФФИ в рамках научного проекта № 19-37-90150 «Аспиранты»</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>This research was funded by RFBR according to the research project № 19-37-90150 «Post-Graduates»</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Бурдин А.В., Губарева О.Ю., Пашин С.С., Пугин В.В. 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