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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">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32603/1993-8985-2020-23-4-48-56</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-453</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>РАДИОФОТОНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICROWAVE PHOTONICS</subject></subj-group></article-categories><title-group><article-title>Исследование характеристик фотодетектора с высоким фототоком при передаче сверхвысокочастотного радиосигнала по оптоволокну</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the Characteristics of a Photodetector with a High Photocurrent when Transmitting Microwave Radio Signals Through an Optical Fiber</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6320-9352</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Таценко</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Tatsenko</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Таценко Иван Юрьевич – магистр по направлению "Электроника и наноэлектроника" (2020), аспирант кафедры физической электроники и технологии, ул. Профессора Попова, д. 5, Санкт-Петербург, 197376, Россия</p></bio><bio xml:lang="en"><p>Ivan Yu. Tatsenko, Master degree in electronics and nanoelectronics (2020), post graduate student of the De-partment of Physical Electronics and Technologies, 5, Professor Popov St., St Petersburg 197376, Russia</p></bio><email xlink:type="simple">abitur.tatsenko@mail.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/0000-0001-6351-4963</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Легкова</surname><given-names>Т. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Legkova</surname><given-names>T. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Легкова Татьяна Константиновна – бакалавр по направлению "Электроника и наноэлектроника" (2019), студентка 2-го курса магистратуры, ул. Профессора Попова, д. 5, Санкт-Петербург, 197376, Россия</p></bio><bio xml:lang="en"><p>Tat'yana K. Legkova, Bachelor's degree in electronics and nanoelectronics (2019), the 2st year master degree student, 5, Professor Popov St., St Petersburg 197376, Russia</p></bio><email xlink:type="simple">legkova_tk@mail.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>Иванов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванов Андрей Викторович – начальник отдела, ул. Введенского, д. 3, к. 1, Москва, 117342, Россия</p></bio><bio xml:lang="en"><p>Andrey V. Ivanov, Head of Department, 3, Bld. 1, Vvedenskogo St., Moscow 117342, Russia</p></bio><email xlink:type="simple">aviv58@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7382-9210</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Устинов</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Ustinov</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Устинов Алексей Борисович – доктор физико-математических наук (2012), доцент (2010) кафедры фи-зической электроники и технологии, ул. Профессора Попова, д. 5, Санкт-Петербург, 197376, Россия, Ustinov_rus@yahoo.com</p></bio><bio xml:lang="en"><p>Alexey B. Ustinov, Dr. Sci. (Phys.-Math.) (2012), Associate Professor (2010) of the Department of Physical Electronics and Technologies, 5, Professor Popov St., St Petersburg 197376, Russia</p></bio><email xlink:type="simple">ustinov-rus@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В. И. Ульянова (Ленина)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg Electrotechnical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО "НИИ "Полюс" им. М. Ф. Стельмаха"</institution><country>Россия</country></aff><aff xml:lang="en"><institution>POLYUS Research Institute of M. F. Stelmakh Joint Stock Company</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>07</day><month>10</month><year>2020</year></pub-date><volume>23</volume><issue>4</issue><fpage>48</fpage><lpage>56</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Таценко И.Ю., Легкова Т.К., Иванов А.В., Устинов А.Б., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Таценко И.Ю., Легкова Т.К., Иванов А.В., Устинов А.Б.</copyright-holder><copyright-holder xml:lang="en">Tatsenko I.Y., Legkova T.K., Ivanov A.V., Ustinov A.B.</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://re.eltech.ru/jour/article/view/453">https://re.eltech.ru/jour/article/view/453</self-uri><abstract><sec><title>Введение</title><p>Введение. В настоящее время большой научный и практический интерес вызывает передача радиочастотного сигнала по оптической линии. Такую линию передачи можно также использовать при создании многих радиофотонных устройств. С ростом мощности используемого лазера снижаются потери СВЧ-сигнала в линии передачи. Однако массово выпускаемые фотодетекторы выдерживают мощность в несколько десятков милливатт. Использование фотодетектора с высоким фототоком позволит улучшить характеристики оптоволоконных линий передачи, в частности, снизить потери при передаче аналогового или цифрового радиочастотного сигнала.</p></sec><sec><title>Цель</title><p>Цель. Исследование характеристик фотодетектора с высоким фототоком в системе передачи сверхвысокочастотного радиосигнала по оптоволокну, а также исследование зависимости потерь СВЧ-сигнала от значения мощности оптического излучения в такой системе.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Экспериментальные исследования проведены на сконструированных экспериментальных схемах для исследования характеристик фотодетектора при модулированном и немодулированном оптическом излучении. Теоретические исследования выполнены математическим моделированием передаточных характеристик оптического тракта при различных мощностях входного СВЧ-сигнала.</p></sec><sec><title>Результаты</title><p>Результаты. Найдены зависимости фототока и фотонапряжения фотодетектора от мощности излучения лазера. Представлены экспериментальные амплитудно-частотные характеристики (АЧХ) оптической линии передачи, измеренные при различных мощностях оптического излучения. Описан алгоритм получения частотной зависимости чувствительности фотодетектора в диапазоне частот 0...12 ГГц. Приведены результаты теоретического расчета АЧХ линии передачи в указанном диапазоне частот. Получена приближенная частотная зависимость чувствительности фотодетектора.</p></sec><sec><title>Заключение</title><p>Заключение. За счет использования фотодетектора с высоким значением фототока и повышения мощности лазера до 100 мВт потери СВЧ-сигнала в оптической линии передачи составили около 10 дБ. Показано, что для улучшения передаточных характеристик оптической линии передачи необходимо использовать широкополосный электрооптический модулятор.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. At present, an optical transmission of a microwave signal is of great scientific and practical interest. Moreover, this transmission line can also be used to create microwave photonic devices. Microwave signal losses decrease with an increase of laser power. Commercial photodetectors withstand radiation with a power of several tens of milliwatts. Using a photodetector with a high photocurrent can improve characteristics of photonic transmission lines; in particular, it can reduce microwave signal losses.</p></sec><sec><title>Aim</title><p>Aim. Investigation of characteristics of a photodetector with a high photocurrent when transmitting microwave radio signals through optical fiber. Research of microwave signal losses as a function of optical power.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Experimental studies were carried out on created experimental schemes for studying the characteristics of the photodetector with modulated and unmodulated optical radiation. Theoretical studies were carried out by mathematical modeling of optical path transfer characteristics from the laser power at various powers of an input microwave signal.</p></sec><sec><title>Results</title><p>Results. The dependencies of photocurrent and photovoltage of the photodetector versus laser power were obtained. The experimental amplitude-frequency characteristics of the photonic transmission line were measured at different optical powers. A frequency dependence of the photodetector sensitivity in the range of 0...12 GHz was obtained. Modeling of amplitude-frequency characteristics of the optical path in the range of 0...12 GHz was performed. An approximate frequency dependence of the photodetector sensitivity was obtained.</p></sec><sec><title>Conclusion</title><p>Conclusion. Due to the use of a photodetector with a high photocurrent value and with increasing laser power, microwave losses were reduced to about 10 dB. It was shown that for improving the transmission characteristics of an optical transmission line, it is necessary to use a broadband electro-optical modulator.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>радиофотоника</kwd><kwd>фотодетектор</kwd><kwd>радиофотонная линия передачи</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microwave photonics</kwd><kwd>photodetector</kwd><kwd>microwave photonic transmission line</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа частично поддержана Министерством науки и высшего образования Российской Федерации (проект "Госзадание", грант № 0788-2020-0005). Авторы выражают благодарность В. В. Щербакову (АО "Центр ВОСПИ") за предоставленное оптическое волокно для проведения исследований.</funding-statement><funding-statement xml:lang="en">This work was supported in part by the Ministry of Science and Higher Education of the Russian Federation (project "Goszadanie", grant № 0788-2020-0005). 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