{"id":355,"date":"2022-03-10T11:37:07","date_gmt":"2022-03-10T10:37:07","guid":{"rendered":"http:\/\/au.feri.um.si\/leoss\/?p=355"},"modified":"2022-03-10T11:37:07","modified_gmt":"2022-03-10T10:37:07","slug":"all-optical-thermo-optical-path-length-modulation-based-on-the-vanadium-doped-fibers","status":"publish","type":"post","link":"https:\/\/au.jovo.cc\/leoss\/2022\/03\/10\/all-optical-thermo-optical-path-length-modulation-based-on-the-vanadium-doped-fibers\/","title":{"rendered":"All-optical, thermo-optical path length modulation based on the vanadium-doped fibers"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">This paper presents an all-fiber, fully-optically controlled, optical-path length modulator based on highly absorbing optical fiber. The modulator utilizes a high-power 980 nm pump diode and a short section of vanadium-co-doped single mode fiber that is heated through absorption and a non-radiative relaxation process. The achievable path length modulation range primarily depends on the pump&#8217;s power and the convective heat-transfer coefficient of the surrounding gas, while the time response primarily depends on the heated fiber&#8217;s diameter. An absolute optical length change in excess of 500 \u03bcm and a time-constant as short as 11 ms, were demonstrated experimentally. The all-fiber design allows for an electrically-passive and remote operation of the modulator. The presented modulator could find use within various fiber-optics systems that require optical (remote) path length control or modulation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.osapublishing.org\/oe\/abstract.cfm?uri=oe-21-10-11794\">https:\/\/www.osapublishing.org\/oe\/abstract.cfm?uri=oe-21-10-11794<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This paper presents an all-fiber, fully-optically controlled, optical-path length modulator based on highly absorbing optical fiber. The modulator utilizes a high-power 980 nm pump diode and a short section of vanadium-co-doped single mode fiber that is heated through absorption and a non-radiative relaxation process. The achievable path length modulation range primarily depends on the pump&#8217;s [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":1252,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,16,5],"tags":[],"class_list":["post-355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-opticna-vlakna-pasivne","category-other-speciality-fibers","category-raziskovalno-delo"],"_links":{"self":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/posts\/355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/comments?post=355"}],"version-history":[{"count":0,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/posts\/355\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/media\/1252"}],"wp:attachment":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/media?parent=355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/categories?post=355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/tags?post=355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}