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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.2020-6-22-26</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1801</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>Высокоточная установка для измерений длины волны отсечки одномодового оптического волокна</article-title><trans-title-group xml:lang="en"><trans-title>High-precision apparatus for measuring cutoff wavelength of the single-mode optical fiber</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>Григорьев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoriev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Vasiliy V. Grigoriev</p><p>Moscow</p></bio><email xlink:type="simple">gvv@vniiofi.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>Митюрев</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Mityurev</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Alexei K. Mityurev</p><p>Moscow</p></bio><email xlink:type="simple">mak@vniiofi.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>Погонышев</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Pogonyshev</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Andrey O. Pogonyshev</p><p>Moscow</p></bio><email xlink:type="simple">pogonyshev@vniiofi.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>Савкин</surname><given-names>К. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Savkin</surname><given-names>K. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Konstantin B. Savkin</p><p>Moscow</p></bio><email xlink:type="simple">savkin@vniiofi.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 оптико-физических измерений</institution><country>Россия</country></aff><aff xml:lang="en"><institution>The All-Russian Research Institute for Optical and Physical Measurements</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>10</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>22</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</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/1801">https://www.izmt.ru/jour/article/view/1801</self-uri><abstract><p>Рассмотрены проблемы определения и контроля оптического волокна – передающей среды волоконно-оптических систем связи. Одним из контролируемых параметров является длина волны отсечки одномодового оптического волокна, определяющая минимальную длину волны оптического излучения, при которой оптическое волокно поддерживает только одну распространяемую моду – работает в одномодовом режиме. Задача определения длины волны отсечки оптического волокна, используемого в волоконно-оптических системах связи, актуальна, так как при многомодовом режиме работы оптического волокна уменьшается его пропускная способность вследствие междомодовой дисперсии. Рассмотрены методы измерений длины волны отсечки оптического волокна. Предложен и опробован образец оригинальной высокоточной установки для измерений длины волны отсечки оптического волокна. Измерения выполнены на основе метода эталонного изгиба, описанного в стандарте ГОСТ Р МЭК 60793-1-44-2013. Проанализированы точностные характеристики разработанной установки, получена количественная оценка погрешности измерений.</p><p> </p></abstract><trans-abstract xml:lang="en"><p>Currently, communication systems are widely used, where optical fiber is used as a transmission medium. In turn, decision and control of optical fiber parameters has become needfull, since these parameters have a significant impact on the quality and quantity of transmitted information using fiber-optic communication systems. One of these parameters is cut-off wavelength of the single-mode optical fiber, which determines the minimum wavelength of optical radiation at which the optical fiber supports only one propagated mode, in other words, operates in single-mode. The problem of decision cut-off wavelength of the optical fiber used in fiber-optic communication systems is quite relevant and demand, since when the optical fiber operates in multimode, its throughput decreases due to inter-mode dispersion. The article describes methods for measuring cut-off wavelength of the optical fiber. Variant of a highprecision apparatus for measuring cut-off wavelength of the optical fiber has been proposed and tested. The measurements were performed based on the reference bending technique described in GOST R IEC 60793-1-44-2013. The analysis of the accuracy characteristics of the developed apparatus is made, a quantitative assessment of the measurement error is obtained.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оптическое волокно</kwd><kwd>волоконно-оптические системы связи</kwd><kwd>измерения параметров оптического волокна</kwd><kwd>длина волны отсечки.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>optical fiber</kwd><kwd>fiber optical communication systems</kwd><kwd>measurement of optical fiber parameters</kwd><kwd>cut-off wavelength.</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">Глазов А. И., Григорьев В. В., Иванов В. С., Кравцов В. Е., Митюрев А. К., Тихомиров С. В., Крутиков В. Н. Эталонная база ВНИИОФИ в области волоконно-оптических систем передачи информации // Фотон-экспресс. 2015. № 8 (128). С. 18–25.</mixed-citation><mixed-citation xml:lang="en">Glazov A. I., Grigoriev V. 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