{"id":70,"date":"2012-11-25T15:29:33","date_gmt":"2012-11-25T15:29:33","guid":{"rendered":"http:\/\/www.dkphotonics.com\/blog\/?p=70"},"modified":"2012-11-25T15:29:33","modified_gmt":"2012-11-25T15:29:33","slug":"what-is-dwdm","status":"publish","type":"post","link":"https:\/\/www.dkphotonics.com\/blog\/what-is-dwdm\/","title":{"rendered":"What is DWDM"},"content":{"rendered":"<h1><span style=\"color: #000080;\"><a href=\"http:\/\/www.dkphotonics.com\/product\/DWDM.html\">DWDM<\/a> (Dense Wavelength Division Multiplexing)<\/span><\/h1>\n<h2><span style=\"color: #000080;\"> DWDM <strong><\/strong>definition: <\/span><\/h2>\n<h2><span style=\"color: #000080;\">Up to 40\/80 wavelength over one pair of fiber<\/span><\/h2>\n<h3><span style=\"color: #000080;\">DWDM highlights<\/span><\/h3>\n<figure id=\"attachment_71\" aria-describedby=\"caption-attachment-71\" style=\"width: 345px\" class=\"wp-caption alignright\"><a href=\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/2012\/11\/DWDM-LGX-Module.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-71\" title=\"DWDM\" src=\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/2012\/11\/DWDM-LGX-Module.jpg\" alt=\"DWDM\" width=\"345\" height=\"196\" \/><\/a><figcaption id=\"caption-attachment-71\" class=\"wp-caption-text\">DWDM<\/figcaption><\/figure>\n<ul>\n<li>Up to 90 DWDM wavelength over one pair of fiber<\/li>\n<li>DWDM channel spacing 0.8 nm (100 GHz grid) or 0.4 nm (50 GHz grid)<\/li>\n<li>Distances over 1,000 km can be achieved with the use of optical amplifier<\/li>\n<li>DWDM wavelength: 1528 nm (channel 61) to 1563 nm (channel 17)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #000080;\">DWDM principle<\/span><\/h3>\n<p>The functionality of DWDM resembles to the one of <a href=\"http:\/\/www.dkphotonics.com\/product\/CWDM.html\">CWDM<\/a>. Unlike to CWDM technology, the channel spacing for DWDM is 0.8\/0.4 nm (100 GHz\/50 GHz grid). This small channel spacing allows to transmit simultaneously much more information.Currently a restriction on wavelengths between 1530 nm and 1625 nm exists which corresponds to the C and L band. In this connection <a href=\"http:\/\/www.dkphotonics.com\/product\/DWDM.html\">DWDM<\/a> wavelengths from DWDM technology is more expensive compared to CWDM caused by the need of more sophisticated transceivers.<\/p>\n<figure id=\"attachment_72\" aria-describedby=\"caption-attachment-72\" style=\"width: 550px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/2012\/11\/8a3f76ce88.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-72\" title=\"DWDM\" src=\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/2012\/11\/8a3f76ce88.png\" alt=\"DWDM\" width=\"550\" height=\"163\" srcset=\"https:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/2012\/11\/8a3f76ce88.png 550w, https:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/2012\/11\/8a3f76ce88-300x88.png 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><figcaption id=\"caption-attachment-72\" class=\"wp-caption-text\">DWDM<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DWDM (Dense Wavelength Division Multiplexing) DWDM definition: Up to 40\/80 wavelength over one pair of fiber DWDM highlights Up to 90 DWDM wavelength over one pair of fiber DWDM channel spacing 0.8 nm (100 GHz grid) or 0.4 nm (50 GHz grid) Distances over 1,000 km can be achieved with the use of optical amplifier &hellip; <a href=\"https:\/\/www.dkphotonics.com\/blog\/what-is-dwdm\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">What is DWDM<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112,7],"tags":[9],"class_list":["post-70","post","type-post","status-publish","format-standard","hentry","category-dwdm","category-wdm","tag-dwdm"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is DWDM - DK Photonics Blog<\/title>\n<meta name=\"description\" content=\"The functionality of DWDM resembles to the one of CWDM. Unlike to CWDM technology, the channel spacing for DWDM is 0.8\/0.4 nm (100 GHz\/50 GHz grid).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dkphotonics.com\/blog\/what-is-dwdm\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is DWDM - DK Photonics Blog\" \/>\n<meta property=\"og:description\" content=\"The functionality of DWDM resembles to the one of CWDM. 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