{"id":11823,"date":"2016-09-25T20:14:08","date_gmt":"2016-09-26T00:14:08","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=11823"},"modified":"2016-10-02T00:45:58","modified_gmt":"2016-10-02T04:45:58","slug":"audio-transmission-using-laser","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/audio-transmission-using-laser\/","title":{"rendered":"Audio transmission using Laser"},"content":{"rendered":"<p>Armand &amp; Victor did an interesting experiment about <strong><a href=\"https:\/\/www.youtube.com\/watch?v=DtCwJU6YMaA\" target=\"_blank\">sending audio over a laser beam<\/a><\/strong>. They used a 250mW diode laser, modulated its output with an audio signal, and aimed the modulated beam to a solar cell located at more than 400 meters away. The output of the solar cell is directly fed to an high power amplifier to reconstruct the audio. You wouldn&#8217;t believe the demodulated audio was surprisingly good quality.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/DtCwJU6YMaA\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Armand &amp; Victor did an interesting experiment about sending audio over a laser beam. They used a 250mW diode laser, modulated its output with an audio signal, and aimed the modulated beam to a solar cell located at more than 400 meters away. The output of the solar cell is directly fed to an high power amplifier to reconstruct the audio. You wouldn&#8217;t believe the demodulated audio was surprisingly good quality.<\/p>\n","protected":false},"author":1,"featured_media":11811,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[319],"tags":[1457,874],"class_list":["post-11823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","tag-audio-over-laser","tag-modulation"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/11823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/comments?post=11823"}],"version-history":[{"count":2,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/11823\/revisions"}],"predecessor-version":[{"id":11825,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/11823\/revisions\/11825"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/11811"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=11823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=11823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=11823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}