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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-392</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>Статьи</subject></subj-group></article-categories><title-group><article-title>СВЯЗЬ НЕЛИНЕЙНОГО УСИЛЕНИЯ С НЕЛИНЕЙНОЙ РЕФРАКЦИЕЙ В КВАНТОВОРАЗМЕРНЫХ ЛАЗЕРАХ</article-title><trans-title-group xml:lang="en"><trans-title>RELATION BETWEEN NONLINEAR GAIN AND NONLINEAR REFRACTION IN QUANTUM-WELL SEMICONDUCTOR LASERS</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>Афоненко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Afonenko</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">afonenko@bsu.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>Матюхин</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Matioukhin</surname><given-names>A. B.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>Belаrusian State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>86</volume><issue>2</issue><fpage>210</fpage><lpage>215</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Афоненко А.А., Матюхин А.Б., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Афоненко А.А., Матюхин А.Б.</copyright-holder><copyright-holder xml:lang="en">Afonenko A.A., Matioukhin 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://zhps.ejournal.by/jour/article/view/392">https://zhps.ejournal.by/jour/article/view/392</self-uri><abstract><p>Рассмотрено влияние механизмов нелинейного усиления, таких как динамический нагрев носителей излучением, выгорание пространственных и спектральных провалов, на действительную и мнимую части показателя преломления. Установлена зависимость эффективного параметра амплитудно-фазовой связи для нелинейного усиления от частоты излучения и уровня накачки. Показано, что основным механизмом нелинейного усиления, определяющим вышеуказанный параметр, является динамический нагрев носителей излучением.</p></abstract><trans-abstract xml:lang="en"><p>The influence of nonlinear gain mechanisms such as carrier heating and spatial and spectral hole burning on the real and imaginary parts of the refractive index is described. The dependence of the total amplitude-phase coupling parameter for nonlinear gain on the laser frequency and pump level is obtained. Carrier heating is shown to be the main nonlinear gain mechanism affecting the above-mentioned parameter.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>semiconductor laser</kwd><kwd>nonlinear gain</kwd><kwd>amplitude-phase coupling</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">C. H. Henry. IEEE J. Quantum Electron., 18 (1982) 259-264</mixed-citation><mixed-citation xml:lang="en">C. H. Henry. IEEE J. Quantum Electron., 18 (1982) 259-264</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">A. B. Matioukhin, I. S. Manak, A. A. Afonenko. In “Krajovy Kongres Metrologii”, 24-27 July 2001, Warsaw, Poland, 2 (2001) 503-505</mixed-citation><mixed-citation xml:lang="en">A. B. Matioukhin, I. S. Manak, A. A. Afonenko. 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