{"id":1738,"date":"2018-03-01T21:32:45","date_gmt":"2018-03-01T21:32:45","guid":{"rendered":"https:\/\/sandbox.gloop.org\/blog\/?p=1738"},"modified":"2018-03-01T21:57:49","modified_gmt":"2018-03-01T21:57:49","slug":"speed-of-light-in-optical-fiber","status":"publish","type":"post","link":"https:\/\/sandbox.gloop.org\/blog\/2018\/03\/01\/speed-of-light-in-optical-fiber\/","title":{"rendered":"Speed of light in Optical fiber"},"content":{"rendered":"<blockquote><p>a simple rule of thumb is that a signal using optical fiber for communication will travel at around 200,000 kilometers per second.<\/p><\/blockquote>\n<p>Source: <em><a href=\"https:\/\/en.wikipedia.org\/wiki\/Optical_fiber\">Optical fiber &#8211; Wikipedia<\/a><\/em><\/p>\n<p>I didn&#8217;t know fiber was that much slower than vacuum. Apparently this is significant to HFT where they increasingly favor <a href=\"https:\/\/arstechnica.com\/information-technology\/2016\/11\/private-microwave-networks-financial-hft\/\">microwave links<\/a>.<\/p>\n<p>Edit: moar <a href=\"https:\/\/en.wikipedia.org\/wiki\/Velocity_factor\">wikipedia<\/a>: fiber is faster than cat 5e or 10base2 &#8220;thin&#8221; coax but slower than cat 7 or 10base5 &#8220;thick&#8221; coax.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>a simple rule of thumb is that a signal using optical fiber for communication will travel at around 200,000 kilometers per second. Source: Optical fiber &#8211; Wikipedia I didn&#8217;t know fiber was that much slower than vacuum. Apparently this is significant to HFT where they increasingly favor microwave links. Edit: moar wikipedia: fiber is faster [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1738","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/posts\/1738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/comments?post=1738"}],"version-history":[{"count":3,"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/posts\/1738\/revisions"}],"predecessor-version":[{"id":1741,"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/posts\/1738\/revisions\/1741"}],"wp:attachment":[{"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/media?parent=1738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/categories?post=1738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sandbox.gloop.org\/blog\/wp-json\/wp\/v2\/tags?post=1738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}