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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">mais</journal-id><journal-title-group><journal-title xml:lang="ru">Моделирование и анализ информационных систем</journal-title><trans-title-group xml:lang="en"><trans-title>Modeling and Analysis of Information Systems</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-1015</issn><issn pub-type="epub">2313-5417</issn><publisher><publisher-name>Yaroslavl State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18255/1818-1015-2013-5-45-61</article-id><article-id custom-type="elpub" pub-id-type="custom">mais-173</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>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>Локальная динамика лазера с быстро осциллирующими параметрами</article-title><trans-title-group xml:lang="en"><trans-title>Local Dynamics of a Laser with Rapidly Oscillating Parameters</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>Григорьева</surname><given-names>Елена Викторовна</given-names></name><name name-style="western" xml:lang="en"><surname>Grigorieva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физ.-мат. наук, профессор,</p><p>220070 Минск, Республика Беларусь, Партизанский проспект, 26</p></bio><bio xml:lang="en"><p>доктор физ.-мат. наук, профессор,</p><p>Partizanskii av., 26, Minsk, 220070, Belarus</p></bio><email xlink:type="simple">grigorieva@tut.by</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>Кащенко</surname><given-names>Сергей Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Kaschenko</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физ.-мат. наук, профессор, зав. кафедрой математического моделирования,</p><p>150000 Россия, г. Ярославль, ул. Советская, 14</p></bio><bio xml:lang="en"><p>доктор физ.-мат. наук, профессор, зав. кафедрой математического моделирования,</p><p>Sovetskaya str., 14, Yaroslavl, 150000, Russia</p></bio><email xlink:type="simple">kasch@uniyar.ac.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный экономический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belarus State Economical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Ярославский государственный университет им. П.Г. Демидова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>P.G. Demidov Yaroslavl State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>20</day><month>10</month><year>2013</year></pub-date><volume>20</volume><issue>5</issue><fpage>45</fpage><lpage>61</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Григорьева Е.В., Кащенко С.А., 2013</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="ru">Григорьева Е.В., Кащенко С.А.</copyright-holder><copyright-holder xml:lang="en">Grigorieva E.V., Kaschenko S.A.</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.mais-journal.ru/jour/article/view/173">https://www.mais-journal.ru/jour/article/view/173</self-uri><abstract><p>Рассматривается динамика лазеров класса B с некогерентной оптической обратной связью, образованной быстро вибрирующими внешними зеркалами. С этой целью изучена задача об устойчивости состояния равновесия в модельной системе с быстро осциллирующими коэффициентами. Получена усредненная система с распределенным запаздыванием. Установлено, что в присутствии быстрых осцилляций запаздывания граница неустойчивости состояния равновесия сдвигается в сторону существенно бóльших значений коэффициента обратной связи. Зависимость величины смещения при возрастании амплитуды модуляции имеет зонную структуру, поэтому быстрые осцилляции запаздывания могут стабилизировать или дестабилизировать состояние равновесия. Построены нормальные формы, которые показывают изменения знака ляпуновской величины вдоль границы и описывают характеристики периодических и квазипериодических режимов вблизи состояния равновесия.</p></abstract><trans-abstract xml:lang="en"><p>The dynamics of class B lasers with the incoherent optical feedback formed by quickly vibrating external mirrors is viewed. The problem of the stability of equilibrium in a model system with rapidly oscillating coefficients is studied. The averaged system with the distributed delay is received. It is determined that in the presence of fast delay oscillation the limit of instability of a balance state moves towards significantly greater values of the feedback coefficient. The dependence of the shift with increasing the amplitude modulation has a band structure, so the rapid oscillations of delay can stabilize or destabilize the equilibrium. Normal forms which show changes of the sign of Lyapunov quantityalong border are constructed. They describe characteristics of periodic and quasiperiodic modes close to the balance state.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лазерная динамика</kwd><kwd>обратная связь</kwd><kwd>бифуркационный анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>laser dynamics</kwd><kwd>feedback</kwd><kwd>bifurcation analysis</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">Ikeda K. and Matsumoto K. High-dimensional chaotic behavior in systems with timedelayed feedback // Physica D. 1987. V. 29. P. 223–235.</mixed-citation><mixed-citation xml:lang="en">Ikeda K. and Matsumoto K. High-dimensional chaotic behavior in systems with timedelayed feedback // Physica D. 1987. V. 29. P. 223–235.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Kittel A., Pyragas K., Richter R. 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