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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Infokommunikacionnye tehnologii</journal-id><journal-title-group><journal-title xml:lang="en">Infokommunikacionnye tehnologii</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфокоммуникационные технологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2073-3909</issn><publisher><publisher-name xml:lang="en">Povolzhskiy State University of Telecommunications and Informatics</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">635128</article-id><article-id pub-id-type="doi">10.18469/ikt.2023.21.4.06</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Communication lines and fiber-optics telecommunications technologies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Линии связи и волоконно-оптические технологии телекоммуникаций</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Recommendations on the Urban Network Fotl Structure with the Lowest Possible Level of Distortion of Information and Control ILCF Signals</article-title><trans-title-group xml:lang="ru"><trans-title>Выработка рекомендаций по структуре ВОЛП городских сетей, минимально искажающей информационно-управляющие ФИМД-сигналы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vinogradova</surname><given-names>Irina L.</given-names></name><name xml:lang="ru"><surname>Виноградова</surname><given-names>Ирина Леонидовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Doctor of Technical Sciences, Professor of the Telecommunication Systems Department</p></bio><bio xml:lang="ru"><p>д.т.н., профессор кафедры телекоммуникационных систем</p></bio><email>vil-4@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Golovina</surname><given-names>Evgenia Yu.</given-names></name><name xml:lang="ru"><surname>Головина</surname><given-names>Евгения Юрьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Senior Lecturer of the Information Technologies Department</p></bio><bio xml:lang="ru"><p>ст. преподаватель кафедры информационных технологий</p></bio><email>egolovina82@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Ufa University of Science and Technology</institution></aff><aff><institution xml:lang="ru">Уфимский университет науки и технологий</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Oil Refining and Petrochemistry of Ufa State Petroleum Technological University in Salavat</institution></aff><aff><institution xml:lang="ru">Институт нефтепереработки и нефтехимии Уфимского государственного нефтяного технического университета в г. Салавате</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-11" publication-format="electronic"><day>11</day><month>09</month><year>2024</year></pub-date><volume>21</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>37</fpage><lpage>46</lpage><history><date date-type="received" iso-8601-date="2024-08-12"><day>12</day><month>08</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-08-12"><day>12</day><month>08</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Vinogradova I.L., Golovina E.Y.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Виноградова И.Л., Головина Е.Ю.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Vinogradova I.L., Golovina E.Y.</copyright-holder><copyright-holder xml:lang="ru">Виноградова И.Л., Головина Е.Ю.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/2073-3909/article/view/635128">https://journals.eco-vector.com/2073-3909/article/view/635128</self-uri><abstract xml:lang="en"><p>The article studies the problem of construction of subscriber branched networks xPON/MAN/RoF, on the baseof fiber-optic transmission lines, with the possibility of non-relational control. Namely, enabling transmission of control information as a part of subscriber signal. It is proposed to use instantaneous wavelength change function of the optical signal (ILCF)as the control information with parametric characteristics. A method of modeling such segments was offerred, nature of ILCF was analyzed, and recommendations on inclusion of EDFA light guides and methods of pumping to them from the point of view of maintaining positive chirp for the information-control ILCF signal were made. It was assumed that ensuring positive chirp will minimize distortion of the latter during its transmission. It is concluded that branching has significant effect on ILCF. Recommended parameters of segments for different degrees of their branching are also obtained as well.</p></abstract><trans-abstract xml:lang="ru"><p>В статье исследуется задача построения абонентских разветвленных сетей xPON/MAN/RoF, на базе волоконно-оптических линиях передачи, с возможностью нереляционного управления. А именно – с передачей управляющей информации в составе абонентского сигнала. Предложено в качестве параметра, переносящего управляющую информацию, задействовать функцию изменения мгновенной длины волны оптического сигнала. Предложен способ моделирования таких сегментов, проанализирован характер функции изменения мгновенной длины волны оптического сигнала, выработаны рекомендации по включению световодов Erbium Doped Fiber Amplifier, и по методам подведения накачки к ним с точки зрения поддержания положительного чирпирования для информационно-управляющего сигнала с функцией изменения мгновенной длины волны. Предполагалось, что обеспечение положительного чирпирования позволит минимизировать искажения при передаче последнего. Сделан вывод о значительном влиянии разветвлений на функции изменения мгновенной длины волны оптического сигнала. Получены рекомендательные параметры сегментов для различной степени их разветвленности.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Passive Optical Networks</kwd><kwd>Metropolitan Area Networks</kwd><kwd>Radio-over-Fiber</kwd><kwd>fiber optic transmission line</kwd><kwd>Y-branch</kwd><kwd>Erbium Doped Fiber Amplifier</kwd><kwd>chirping</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Passive Optical Networks</kwd><kwd>Metropolitan Area Networks</kwd><kwd>Radio-over-Fiber</kwd><kwd>волоконно-оптическая линия передачи</kwd><kwd>Y-разветвители</kwd><kwd>Erbium Doped Fiber Amplifier</kwd><kwd>чирпирование</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Goldstein A.B., Goldstein B.S. MPLS Technology and Protocols. Saint Petersburg: BHV-Peterburg, 2005, 304 p. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Гольдштейн А.Б., Гольдштейн Б.С. 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