{"id":7769,"date":"2024-09-12T16:25:37","date_gmt":"2024-09-12T13:25:37","guid":{"rendered":"https:\/\/quantum-electronics.ru\/en\/?p=7769"},"modified":"2024-09-12T16:25:37","modified_gmt":"2024-09-12T13:25:37","slug":"investigation-of-the-quasi-cw-heating-dynamics-of-an-active-region-of-high-power-semiconductor-lasers-%ce%bb-1060-nm-with-an-ultra-wide-emitting-aperture-800-%ce%bcm","status":"publish","type":"post","link":"https:\/\/quantum-electronics.ru\/en\/investigation-of-the-quasi-cw-heating-dynamics-of-an-active-region-of-high-power-semiconductor-lasers-%ce%bb-1060-nm-with-an-ultra-wide-emitting-aperture-800-%ce%bcm\/","title":{"rendered":"Investigation of the quasi-cw heating dynamics of an active region of high-power semiconductor lasers (\u03bb = 1060 nm) with an ultra-wide emitting aperture (800 \u03bcm)"},"content":{"rendered":"<p>I. S. Shashkin, A. D. Rybkin, V. A. Kryuchkov, A. E. Kazakova, D. N. Romanovich, N. A. Rudova, S. O. Slipchenko, N. A. Pikhtin<\/p>\n<ul>\n<li>Ioffe Institute, St. Petersburg<\/li>\n<\/ul>\n<p><strong>Abstract:<\/strong> An approach has been developed to study temporal behaviour of the active region overheating in high-power semiconductor lasers (\u03bb = 1060 nm) with an ultra-wide aperture (800 \u03bcm) operating in a quasi-continuous regime of pumping by current pulses with an amplitude of 21 A, a duration of 1 ms, and a repetition rate of 10 Hz. The approach is based on measuring the lasing dynamics with spectral selection. The lasing spectrum analysis shows that the region of the rising edge, where the amplitude of the current pulse increases, is characterised by a maximum red-shift rate of 30 nm\u00b7ms\u20131, which is due to both thermal and nonthermal effects. The pulse region corresponding to a constant pump current amplitude is characterised only by a thermal red shift of the lasing spectrum long-wavelength edge at a rate of \u223c1 nm\u00b7ms\u20131. The obtained experimental active region overheating is 2.78\u00b0C for the constant pump current amplitude region, which agrees with the calculated overheating of 3.08\u00b0C for the pump conditions under study.<\/p>\n<p><strong>Keywords:<\/strong> high-power semiconductor lasers, pulsed regime, spectral dynamics, heating, heterostructure.<\/p>\n<p><strong>Received:<\/strong> 21.07.2022<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I. S. Shashkin, A. D. Rybkin, V. A. Kryuchkov, A. E. Kazakova, D. N. Romanovich, N. A. Rudova, S. O. Slipchenko, N. A. Pikhtin Ioffe Institute, St. Petersburg Abstract: An approach has been developed to study temporal behaviour of the active region overheating in high-power semiconductor lasers (\u03bb = 1060 nm) with an ultra-wide aperture\u2026 <span class=\"read-more\"><a href=\"https:\/\/quantum-electronics.ru\/en\/investigation-of-the-quasi-cw-heating-dynamics-of-an-active-region-of-high-power-semiconductor-lasers-%ce%bb-1060-nm-with-an-ultra-wide-emitting-aperture-800-%ce%bcm\/\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2995,2994,1661,493,321,1341,732,320],"class_list":["post-7769","post","type-post","status-publish","format-standard","hentry","category-stats","tag-n-a-pikhtin","tag-v-a-kryuchkov","tag-a-d-rybkin","tag-a-e-kazakova","tag-d-n-romanovich","tag-i-s-shashkin","tag-n-a-rudova","tag-s-o-slipchenko"],"_links":{"self":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/7769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/comments?post=7769"}],"version-history":[{"count":0,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/7769\/revisions"}],"wp:attachment":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/media?parent=7769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/categories?post=7769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/tags?post=7769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}