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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">Journal of Communications Technology and Electronics</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Communications Technology and Electronics</journal-title><trans-title-group xml:lang="ru"><trans-title>Радиотехника и электроника</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0033-8494</issn><issn publication-format="electronic">3034-5901</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">650704</article-id><article-id pub-id-type="doi">10.31857/S0033849424030093</article-id><article-id pub-id-type="edn">JUFCKK</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>NEW ELECTRONIC SYSTEMS AND ELEMENTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НОВЫЕ РАДИОЭЛЕКТРОННЫЕ СИСТЕМЫ И ЭЛЕМЕНТЫ</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">Investigation of optical fiber line with a positive transmission ratio of analog microwave signal</article-title><trans-title-group xml:lang="ru"><trans-title>Исследование оптоволоконной линии с положительным коэффициентом передачи аналогового сверхвысокочастотного сигнала</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tatsenko</surname><given-names>I. Yu.</given-names></name><name xml:lang="ru"><surname>Таценко</surname><given-names>И. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abitur.tatsenko@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ustinov</surname><given-names>A. B.</given-names></name><name xml:lang="ru"><surname>Устинов</surname><given-names>А. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abitur.tatsenko@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Saint Petersburg Electrotechnical University “LETI”</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный электротехнический университет “ЛЭТИ”</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-03-14" publication-format="electronic"><day>14</day><month>03</month><year>2024</year></pub-date><volume>69</volume><issue>3</issue><fpage>299</fpage><lpage>304</lpage><history><date date-type="received" iso-8601-date="2025-01-31"><day>31</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://innoscience.ru/0033-8494/article/view/650704">https://innoscience.ru/0033-8494/article/view/650704</self-uri><abstract xml:lang="en"><p>The influence of optical radiation power on the one-decibel compression point, harmonic distortion and dynamic range due to interference in a fiber-optic transmission line of an ultra-high frequency (microwave) signal has been studied. The line had a positive microwave signal transmission coefficient, and there were no amplification elements between the input and output. The amplification effect was achieved through the use of increased power of the carrier optical radiation and a photodetector with a high photocurrent. It has been shown that an increase in optical radiation power leads to a decrease in one-dB compression power and an increase in harmonic distortion, but an increase in optical radiation power does not lead to a change in the dynamic range of interference. It was found that the dynamic range free from interference was about 85…87 dB.</p></abstract><trans-abstract xml:lang="ru"><p>Исследовано влияние мощности оптического излучения на точку однодецибельной компрессии, гармонические искажения и динамический диапазон по помехам оптоволоконной линии передачи сверхвысокочастотного (СВЧ) сигнала. Показано, что увеличение мощности оптического излучения приводит к уменьшению мощности однодецибельной компрессии и увеличению гармонических искажений и не приводит к изменению динамического диапазона по помехам. Найдено, что динамический диапазон, свободный от помех, составил около 85…87 дБ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>optical fiber</kwd><kwd>optical fiber transmission line</kwd><kwd>nonlinear distortion</kwd><kwd>intermodulation distortion</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>оптоволокно</kwd><kwd>оптоволоконная линия передачи</kwd><kwd>нелинейные искажения</kwd><kwd>интермодуляционные искажения</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>FSEE-2020-0005</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Петров А.Н., Тронев А.В., Лебедев В.В. и др. // ЖТФ. 2015. 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