{"id":8004,"date":"2024-09-13T14:04:34","date_gmt":"2024-09-13T11:04:34","guid":{"rendered":"https:\/\/quantum-electronics.ru\/en\/?p=8004"},"modified":"2024-09-16T12:25:10","modified_gmt":"2024-09-16T09:25:10","slug":"quasi-cw-high-power-laser-diode-mini-bars-%ce%bb976-nm-with-increased-length-of-a-resonator-based-on-asymmetric-heterostructures-with-a-broadened-waveguide","status":"publish","type":"post","link":"https:\/\/quantum-electronics.ru\/en\/quasi-cw-high-power-laser-diode-mini-bars-%ce%bb976-nm-with-increased-length-of-a-resonator-based-on-asymmetric-heterostructures-with-a-broadened-waveguide\/","title":{"rendered":"Quasi-cw high-power laser diode mini bars (\u03bb=976 nm) with increased length of a resonator based on asymmetric heterostructures with a broadened waveguide"},"content":{"rendered":"<p>S. O. Slipchenko, A. A. Podoskin, V. A. Kryuchkov, V. A. Strelets, I. S. Shashkin, N. A. Pikhtin<\/p>\n<ul>\n<li>Ioffe Institute, St.\u00a0Petersburg<\/li>\n<\/ul>\n<div class=\"around-button\"><b>Abstract:<\/b> Mini laser bars with 6-mm resonator length that include 5\u00d7100 \u03bcm emitters with a 25% fill factor are designed. It is shown that under pump current pulses of 1.0\u20139.5 ms duration (a 10 Hz repetition rate) and an amplitude peak value up to 50 A, a high emitting efficiency of 1.03 W\u00b7A<sub>\u20131<\/sub>, corresponding to the power&#8211;current (<i>P<\/i>\u2013<i>I<\/i>) characteristic, is maintained, with a maximum peak power being 48.4 W. The ability of mini laser diode bars to work in the quasi-cw regime at heatsink temperatures up to 100\u00b0 with maintenance of the <i>P<\/i>\u2013<i>I<\/i> curve linearity at a 25.7-W peak power and a 42-A pump current is demonstrated. A high uniformity in the distribution of radiation intensity in the far field with a divergence angle at half a maximum of 13\u00b0 and 8\u00b0 in the plane perpendicular and parallel to the heterostructure layers, respectively, is shown.<\/div>\n<div class=\"around-button\"><b>Keywords:<\/b> <i>diode laser bars, high-power semiconductor lasers, divergence in the perpendicular plane, quasi-cw regime.<\/i><\/div>\n<div><\/div>\n<div><b>Received:<\/b> 21.11.2022<br \/>\n<b>Accepted:<\/b> 21.11.2022<\/div>\n","protected":false},"excerpt":{"rendered":"<p>S. O. Slipchenko, A. A. Podoskin, V. A. Kryuchkov, V. A. Strelets, I. S. Shashkin, N. A. Pikhtin Ioffe Institute, St.\u00a0Petersburg Abstract: Mini laser bars with 6-mm resonator length that include 5\u00d7100 \u03bcm emitters with a 25% fill factor are designed. It is shown that under pump current pulses of 1.0\u20139.5 ms duration (a 10\u2026 <span class=\"read-more\"><a href=\"https:\/\/quantum-electronics.ru\/en\/quasi-cw-high-power-laser-diode-mini-bars-%ce%bb976-nm-with-increased-length-of-a-resonator-based-on-asymmetric-heterostructures-with-a-broadened-waveguide\/\">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":[2995,2994,3113,3204],"class_list":["post-8004","post","type-post","status-publish","format-standard","hentry","category-stats","tag-n-a-pikhtin","tag-v-a-kryuchkov","tag-v-a-strelets","tag-3204"],"_links":{"self":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/8004","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=8004"}],"version-history":[{"count":0,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/8004\/revisions"}],"wp:attachment":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/media?parent=8004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/categories?post=8004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/tags?post=8004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}