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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">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2023-6-34-39</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1873</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>ОПТИКО-ФИЗИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OPTICOPHYSICAL MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Формирование мультиспектральной последовательности выборки в аналоговом оптическом тракте: возможность автоматизации с помощью цифровой обратной связи</article-title><trans-title-group xml:lang="en"><trans-title>Multispectral sampling sequence formation in an analog optical link: the possibility of automatization using digital feedback</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8774-3338</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Земцов</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zemtsov</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Даниил Сергеевич Земцов</p><p>Москва </p></bio><bio xml:lang="en"><p>Daniil S. Zemtsov</p><p>Moscow</p></bio><email xlink:type="simple">d.zemtsov@skoltech.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/0000-0003-1340-7734</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Злоказов</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Zlokazov</surname><given-names>Е. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Юрьевич Злоказов</p><p>Москва</p></bio><bio xml:lang="en"><p>Еvgenii Yu. Zlokazov</p><p>Moscow</p></bio><email xlink:type="simple">ezlokazov@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3515-5822</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Небавский</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nebavskiy</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Всеволод Алексеевич Небавский</p><p>Москва</p></bio><bio xml:lang="en"><p>Vsevolod A. Nebavskiy</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7369-1565</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стариков</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Starikov</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ростислав Сергеевич Стариков</p><p>Москва </p></bio><bio xml:lang="en"><p>Rostislav S. Starikov</p><p>Moscow </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0279-2980</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хафизов</surname><given-names>И. Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Khafizov</surname><given-names>I. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильшат Жигангирович Хафизов</p><p>Москва</p></bio><bio xml:lang="en"><p>Ilshat G. Khafizov</p><p>Moscow </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет «МИФИ»; Сколковский институт науки и технологий</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Skolkovo Institute of Science and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет «МИФИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>21</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>34</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Земцов Д.С., Злоказов Е.Ю., Небавский В.А., Стариков Р.С., Хафизов И.Ж., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Земцов Д.С., Злоказов Е.Ю., Небавский В.А., Стариков Р.С., Хафизов И.Ж.</copyright-holder><copyright-holder xml:lang="en">Zemtsov D.S., Zlokazov Е.Y., Nebavskiy V.A., Starikov R.S., Khafizov I.G.</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://www.izmt.ru/jour/article/view/1873">https://www.izmt.ru/jour/article/view/1873</self-uri><abstract><p>Рассмотрено использование высокостабильных импульсных лазеров с синхронизацией мод в качестве источников сигнала выборки с малой апертурной ошибкой в широкополосных фотонных аналого-цифровых преобразователях. Отмечено, что для реализации перспективного метода увеличения частоты выборки сигналов с полосой частот более 2 ГГц требуются системы с мультиспектральными импульсно-периодическими последовательностями выборки. Вследствие чувствительности таких систем к изменению температуры и механическим возмущениям увеличивается апертурная ошибка последовательностей выборки, а из-за погрешностей установки задержек светового сигнала в спектральных каналах нарушается эквидистантность следования импульсов. Такое ухудшение качества последовательности выборки в итоге уменьшает точность аналого-цифрового преобразования. Для улучшения эквидистантности следования импульсов мультиспектральной последовательности выборки предложен метод автоматизации процесса её формирования в аналоговом оптическом тракте с использованием цифровой обратной связи и моторизированных линий задержки. Представлены результаты математического моделирования и экспериментальной реализации метода в трёхканальной системе генерации мультиспектральной последовательности выборки с утроением частоты повторения импульсов используемого лазера в режиме синхронизации мод. Данный метод можно применять при построении аналого-цифровых систем микроволновой фотоники различного назначения, в которых используется оптическая выборка.</p></abstract><trans-abstract xml:lang="en"><p>Application of high-stable pulsed mode-locked lasers as a sources of sampling signal with low jitter in wide bandwidth photonic analogue to digital converters is considered. It is noted that for signals with the bandwidth up to 2 GHz the realization of pulsed multispectral sequence is highly promising method of sampling rate increasing. It is noted that high sensitivity of such systems to temperature changes and mechanical disturbances causes the increase of the sampling sequence jitter, errors in setting the light signal delays in the spectral channels causes violation of the pulses equidistance. Such a degradation of sampling signal quality leads to reduction of analogue to digital conversion precision. The method of process automatization using digital feedback and motorized delay lines is proposed for multispectral sequence pulses equidistance improvement. The results of mathematical modeling and experimental realization of the method in 3-channel multispectral sequence generation system with tripling of the sampling rate of the source mode-locked laser are represented in the article. Given method can find application in optical sampling-based analogue-to-digital microwave photonic systems of different purposes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микроволновая фотоника</kwd><kwd>радиофотоника</kwd><kwd>аналоговый оптический тракт</kwd><kwd>оптическая выборка</kwd><kwd>цифровая обратная связь</kwd><kwd>метод Нельдера-Мида</kwd><kwd>лазер в режиме синхронизации мод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microwave photonics</kwd><kwd>analog optical link</kwd><kwd>optical sampling</kwd><kwd>Nelder-Mead method</kwd><kwd>mode locked laser</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">Valley G. C. Optics Express, 2007, vol. 15, no. 5, pp. 1995– 1982. https://doi.org/10.1364/OE.15.001955</mixed-citation><mixed-citation xml:lang="en">Valley G. C. 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