{"id":20346,"date":"2018-08-28T21:01:00","date_gmt":"2018-08-28T19:01:00","guid":{"rendered":"https:\/\/testwebc3.com.es\/?p=20346"},"modified":"2020-05-29T21:20:44","modified_gmt":"2020-05-29T19:20:44","slug":"chirped-photonic-crystal-for-spatially-filtered-optical-feedback-to-a-broad-area-laser","status":"publish","type":"post","link":"https:\/\/testwebc3.com.es\/en\/chirped-photonic-crystal-for-spatially-filtered-optical-feedback-to-a-broad-area-laser\/","title":{"rendered":"Chirped photonic crystal for spatially filtered optical feedback to a broad-area laser"},"content":{"rendered":"\n<p><strong> C Br\u00e9e<sup>1<\/sup>,\u00a0D Gailevi\u010dius<sup>2<\/sup>,\u00a0V Purlys<sup>2<\/sup>,\u00a0G G Werner<sup>3,4<\/sup>,\u00a0K Staliunas<sup>3,5<\/sup>,\u00a0A Rathsfeld<sup>1<\/sup>,\u00a0G Schmidt<sup>1<\/sup>\u00a0and\u00a0M Radziunas<sup>1<\/sup><\/strong><\/p>\n\n\n\n<p><sup>1<\/sup>\u00a0Weierstrass Institute, Mohrenstrasse 39, D-10117 Berlin, Germany,  <sup>2<\/sup>\u00a0Laser Research Center, Vilnius University, Sauletekio Ave.\u00a010, 10222 Vilnius, Lithuania,  <sup>3<\/sup>\u00a0Departament de Fisica, Universitat Polit\u00e8cnica de Catalunya, E-08222 Terrassa, Spain,  <sup>4<\/sup>\u00a0Monocrom S.L., C\/Vilanoveta, 6, E-08800 Vilanova i la Geltr\u00fa, Spain,  <sup>5<\/sup>\u00a0Instituci\u00f3 Catalana de Recerca i Estudis Avan\u00e7ats, Passeig Lluis Companys 23, E-08010 Barcelona, Spain  <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Abstract<\/h2>\n\n\n\n<p> We derive and analyze an efficient model for reinjection of spatially filtered optical feedback from an external resonator to a broad area, edge emitting semiconductor laser diode (DL). Spatial filtering is achieved by a chirped photonic crystal, with variable periodicity along the optical axis and negligible resonant backscattering. The optimal chirp is obtained from a genetic algorithm, which yields solutions that are robust against perturbations. Exemplary numerical simulations of the composite system with our optoelectronic solver indicate that spatially filtered reinjection can enhance lower-order transversal optical modes in the DL and, consequently, improve the spatial beam quality. <\/p>\n\n\n\n<div class=\"wp-block-file\"><a href=\"https:\/\/testwebc3.com.es\/wp-content\/uploads\/2020\/05\/bree2018-Chirped-photonic-crystal-for-spatially-filtered-optical-feedback-to-a-broad-area-laser.pdf\">Read the full article in PDF    <\/a><a href=\"https:\/\/testwebc3.com.es\/wp-content\/uploads\/2020\/05\/bree2018-Chirped-photonic-crystal-for-spatially-filtered-optical-feedback-to-a-broad-area-laser.pdf\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n\n\n\n<p> <strong>This is the Accepted Manuscript version of an article accepted for publication in <a href=\"https:\/\/iopscience.iop.org\/journal\/2040-8986\" target=\"_blank\" rel=\"noopener\">Journal of Optics<\/a>.\u00a0 IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it.\u00a0 The Version of Record is available online at  <a href=\"https:\/\/doi.org\/10.1088\/2040-8986\/aada98\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1088\/2040-8986\/aada98<\/a>  <\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C Br\u00e9e1,\u00a0D Gailevi\u010dius2,\u00a0V Purlys2,\u00a0G G Werner3,4,\u00a0K Staliunas3,5,\u00a0A Rathsfeld1,\u00a0G Schmidt1\u00a0and\u00a0M Radziunas1 1\u00a0Weierstrass Institute, Mohrenstrasse 39, D-10117 Berlin, Germany, 2\u00a0Laser Research Center, Vilnius University, Sauletekio Ave.\u00a010, 10222 Vilnius, Lithuania, 3\u00a0Departament de Fisica, Universitat Polit\u00e8cnica de Catalunya, E-08222 Terrassa, Spain, 4\u00a0Monocrom S.L., C\/Vilanoveta, 6, E-08800 Vilanova i la&#8230;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[],"_links":{"self":[{"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/posts\/20346"}],"collection":[{"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/comments?post=20346"}],"version-history":[{"count":8,"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/posts\/20346\/revisions"}],"predecessor-version":[{"id":20358,"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/posts\/20346\/revisions\/20358"}],"wp:attachment":[{"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/media?parent=20346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/categories?post=20346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/testwebc3.com.es\/en\/wp-json\/wp\/v2\/tags?post=20346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}