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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">10.32446/10.32446/0368-1025it.2025-1-29-34</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-2295</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>К 70-ЛЕТИЮ ВНИИФТРИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ON THE 70TH ANNIVERSARY OF VNIIFTRI</subject></subj-group></article-categories><title-group><article-title>Лазерно-оптическая система атомного интерферометра на холодных атомах рубидия</article-title><trans-title-group xml:lang="en"><trans-title>Laser-optical system of atomic interferometer based on cold rubidium atoms.</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Осипенко</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Osipenko</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Георгий Владимирович Осипенко</p></bio><bio xml:lang="en"><p>Georgii V. Osipenko</p></bio><email xlink:type="simple">osipenko.9494@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>Алейников</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleynikov</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Сергеевич Алейников</p></bio><bio xml:lang="en"><p>Mikhail S. Aleynikov</p></bio><email xlink:type="simple">alejnikov@vniiftri.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>Пашкова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashkova</surname><given-names>Ju. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юлия Вадимовна Пашкова</p></bio><bio xml:lang="en"><p>Julia V. Pashkova</p></bio><email xlink:type="simple">pashkova@vniiftri.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/0009-0001-9288-3749</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Донченко</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Donchenko</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Иванович Донченко</p><p> </p></bio><bio xml:lang="en"><p>Sergey I. Donchenko</p></bio><email xlink:type="simple">director@vniiftri.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Metrological Institute of Technical Physics and Radio Engineering</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>03</day><month>04</month><year>2025</year></pub-date><volume>74</volume><issue>1</issue><fpage>29</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/2295">https://www.izmt.ru/jour/article/view/2295</self-uri><abstract><p>Представлены результаты разработки лазерно-оптической системы для атомного интерферометра на основе атомов рубидия, охлаждённых до субдоплеровских температур. Создаваемый с использованием квантовых технологий атомный интерферометр на холодных атомах рубидия предназначен для прецизионного измерения абсолютного значения ускорения свободного падения. Лазерно-оптическая система – ключевая часть атомного интерферометра – должна обеспечивать процессы охлаждения, перекачки и детектирования атомов, которые взаимодействуют с оптическим излучением. В систему входят частотно-удвоенные волоконные лазеры и широкополосные волоконные электрооптические модуляторы. Выбор волоконных лазеров обусловлен их высокой эффективностью, узкой спектральной линией, низким уровнем фазовых шумов, а также простотой в эксплуатации и надёжностью. Частоты лазеров стабилизированы методом спектроскопии с переносом модуляции и методом привязки частоты лазера по оптической фазе. Описаны экспериментальные схемы, позволяющие получать мультихроматическое излучение и минимизировать спонтанное рассеяние за счёт отстройки частоты лазера от возбуждённых уровней. Конструкция лазерно-оптической системы обеспечивает полный набор оптических частот, необходимых для рамановской спектроскопии. Исследованы амплитуды флуктуаций частот охлаждающего и перекачивающего лазеров. Показано, что реализованная лазерно-оптическая система может обеспечить непрерывную работу атомного интерферометра на основе облаков холодных атомов рубидия. Оценён фундаментальный предел чувствительности атомного интерферометра.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the results of the development of a laser-optical system for atomic interferometer based on rubidium atoms cooled to sub-Doppler temperatures. The laser-optical scheme was created to ensure the processes of cooling, pumping, and detecting atoms involved in interferometric measurements of free-fall acceleration. The system utilizes frequency doubled fiber lasers and broadband fiber electro-optical modulators. The choice of fiber lasers is driven by their high efficiency, narrow spectral line, low phase noise levels, as well as ease of operation and reliability. Laser frequency stabilization was carried out using modulation transfer spectroscopy and optical phase-locking methods. Experimental setups were described that allow the generation of multichromatic radiation and minimize spontaneous scattering by detuning from excited levels. It was noted that the design provides a full set of optical frequencies necessary for Raman spectroscopy. The amplitudes of frequency fluctuations of the cooling and pumping lasers were studied. It was shown that the implemented laser-optical system can ensure continuous operation of an atomic interferometer based on clouds of cold rubidium atoms, and an assessment of the fundamental sensitivity limit was conducted.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>атомный интерферометр</kwd><kwd>лазерное охлаждение</kwd><kwd>рамановская спектроскопия</kwd><kwd>облако холодных атомов</kwd><kwd>субдоплеровское охлаждение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>atomic interferometer</kwd><kwd>laser cooling</kwd><kwd>Raman spectroscopy</kwd><kwd>cloud of cold atoms</kwd><kwd>sub-Doppler cooling</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">Fang J. et al. Classical and Atomic Gravimetry. Remote Sensing, 16(14), 2634 (2024). https://doi.org/10.3390/rs16142634</mixed-citation><mixed-citation xml:lang="en">Fang J. et al. Classical and Atomic Gravimetry. 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