{"id":87437,"date":"2026-09-01T16:19:00","date_gmt":"2026-09-01T14:19:00","guid":{"rendered":"https:\/\/fhi.nl\/nieuws\/how-are-submarine-cables-deployed-with-top-tier-reliability\/"},"modified":"2026-09-01T16:23:44","modified_gmt":"2026-09-01T14:23:44","slug":"how-are-submarine-cables-deployed-with-top-tier-reliability","status":"publish","type":"news","link":"https:\/\/fhi.nl\/en\/news\/how-are-submarine-cables-deployed-with-top-tier-reliability\/","title":{"rendered":"How are submarine cables deployed with top-tier reliability?"},"content":{"rendered":"<header id=\"header\" class=\"header header--high header--branch\">\n\n\t\t\t\t\t\t\t\t\t\t<div class=\"header__background header__background--high\">\n\t\t\t\t\t<img decoding=\"async\" class=\"header__background-image\" src=\"https:\/\/fhi.nl\/app\/uploads\/2026\/09\/20260103_banner_blog_subsea_913831835.jpg\" alt=\"\">\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\n\t<div class=\"container\">\n\t\t<div class=\"header__content\">\n\t\t\t<div class=\"header__first\">\n\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<h1 class=\"header__title\" >\n\t\t\t\t\tHow are submarine cables deployed with top-tier reliability?\t\t\t\t<\/h1>\n\n\t\t\t\t<div class=\"header__dots-line\">\n\t\t\t\t\t<svg width=\"431\" height=\"9\" viewbox=\"0 0 431 9\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M430.799 4.192a1.136 1.136 0 1 1-2.272-.001 1.136 1.136 0 0 1 2.272 0Zm-27.272 0a1.135 1.135 0 1 1-2.27 0 1.135 1.135 0 0 1 2.27 0Zm-27.27 0a1.136 1.136 0 1 1-2.272-.001 1.136 1.136 0 0 1 2.272 0Zm-27.272 0a1.39 1.39 0 1 1-2.78 0 1.39 1.39 0 0 1 2.78 0Zm-27.78 0a1.645 1.645 0 1 1-3.29 0 1.645 1.645 0 0 1 3.29 0Zm-28.29 0a1.9 1.9 0 1 1-3.799 0 1.9 1.9 0 0 1 3.799 0Zm-28.799 0a2.154 2.154 0 1 1-4.308 0 2.154 2.154 0 0 1 4.308 0Zm-29.308 0a2.41 2.41 0 1 1-4.819 0 2.41 2.41 0 0 1 4.819 0Zm-29.819 0a2.663 2.663 0 1 1-5.326.001 2.663 2.663 0 0 1 5.326-.001Zm-30.327 0a2.919 2.919 0 1 1-5.837 0 2.919 2.919 0 0 1 5.837 0Zm-30.837 0a3.173 3.173 0 1 1-6.345.001 3.173 3.173 0 0 1 6.345 0Zm-31.346 0a3.428 3.428 0 1 1-6.856 0 3.428 3.428 0 0 1 6.856 0Zm-31.856 0a3.683 3.683 0 1 1-7.365 0 3.683 3.683 0 0 1 7.365 0Zm-32.365 0a3.937 3.937 0 1 1-7.875 0 3.937 3.937 0 0 1 7.875 0Zm-32.874 0a4.192 4.192 0 1 1-8.384 0 4.192 4.192 0 0 1 8.384 0Z\" fill=\"#FFF960\"\/><\/svg>\t\t\t\t<\/div>\n\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"header__second\">\n\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"header__branch-logos\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/fhi.nl\/app\/uploads\/2024\/02\/Industriele-elektronica.svg\" class=\"header__branch-logo\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/header>\n\n\t<div class=\"header__meta\">\n\t<div class=\"container\">\n\t\t<div class=\"header__meta__category\">\n\n\t\t\t\t\t\t\t<div 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text__content--1-col\">\n\t\t\t<p>Submarine cables are deployed reliably through continuous optical validation before, during, and after installation. Testing gives operators the confidence to launch service, localize faults, validate repairs, and protect network performance across the full subsea cable lifecycle.<\/p>\r\n<p>\u00a0<\/p>\r\n<h4>Why do submarine cables matter to the global digital economy?<\/h4>\r\n<p>Submarine cables form the backbone of international connectivity. They carry over <strong>99% of intercontinental data and more than $12 trillion in daily financial transactions.<\/strong><\/p>\r\n<p>There is no practical substitute at global scale. Satellites cannot match the capacity, latency, or cost efficiency of fiber-optic subsea systems. As AI, cloud, and hyperscale infrastructure accelerate data demand, submarine networks must be deployed, upgraded, and restored with exceptional reliability.<\/p>\r\n<p>\u00a0<\/p>\r\n<h4>A system under constant threat<\/h4>\r\n<p>Submarine networks operate in one of the harshest environments on earth. Cables stretch across thousands of kilometers, often lying unprotected on the ocean floor. Near shore, they are exposed to dense human activity. And once deployed, access is extremely limited.<\/p>\r\n<p>The result? Issues are not rare, they&#039;re expected. According to TeleGeography, <strong>the global subsea network experiences around 200 faults per year<\/strong>\u2014roughly four every week. The vast majority of these are caused by human activity such as fishing, anchoring, and dredging.<\/p>\r\n<p>In other words, subsea networks are not failure-free systems. They are systems that must detect, localize, and recover\u2014reliably and repeatedly.<\/p>\r\n<p>\u00a0<\/p>\r\n<h4>The real cost of getting it wrong<\/h4>\r\n<p>When something goes wrong in a subsea network, the consequences are immediate and expensive. Repair operations require specialized vessels, complex logistics, and regulatory approvals. According to TeleGeography,<strong>repairs can cost up to $1 million per day<\/strong>, and the average delay before repair work even begins<strong>approximately one and a half months<\/strong>, often due to permitting and coordination challenges. Even more critical, once a repair vessel is on-site, there is no room for error. Every additional intervention means more time, more cost, and more disruption.<\/p>\r\n<p>\u00a0<\/p>\r\n<h4>How to build confidence across the cable lifecycle?<\/h4>\r\n<p>From initial deployment to long-term upgrades, subsea networks require continuous validation:<\/p>\r\n<ul>\r\n<li><strong>Before deployment<\/strong>, teams must prove the fiber is ready, because there is no fallback once it&#039;s laid.<\/li>\r\n<li><strong>During commissioning<\/strong>, they must validate performance before traffic goes live, ensuring revenue can start without risk.<\/li>\r\n<li><strong>During maintenance<\/strong>, they must localize faults quickly and accurately, because delays are costly and service must be maintained.<\/li>\r\n<li><strong>After repair<\/strong>, they must confirm the work before the vessel leaves, because a second intervention is not an option.<\/li>\r\n<li><strong>During upgrades<\/strong>, they must ensure the network has the margin to support future capacity, especially as coherent technologies and higher speeds become the norm.<\/li>\r\n<\/ul>\r\n<p>At every stage, the value of testing is not simply the measurement itself. It&#039;s the confidence it creates from top-tier reliability to move forward.<\/p>\r\n<p>\u00a0<\/p>\r\n<h4>Turning test measurements into decisions<\/h4>\r\n<p>In an industry where billions are already invested in resilience, the challenge is about turning test data into trusted decisions. This is where the right test partner makes the whole difference.<\/p>\r\n<p>EXFO supports subsea stakeholders across the full cable lifecycle, from lab validation to deployment, commissioning, landing-station characterization, maintenance, repair validation, and upgrades.<\/p>\r\n<p>By combining comprehensive optical testing\u2014ranging from connector inspection, link characterization and fault localization, spectrum and dispersion analysis to high-speed and coherent link validation (100G to 800G+)\u2014with rugged, compact solutions and deep fiber-optic expertise, EXFO helps crews:<\/p>\r\n<ul>\r\n<li>Reduce uncertainty<\/li>\r\n<li>Avoid costly mistakes<\/li>\r\n<li>Accelerate decision-making<\/li>\r\n<li>And ultimately, protect the business case of every operation<\/li>\r\n<\/ul>\r\n<p>In an environment where every decision carries operational and financial consequences, confidence is the most valuable output of testing.<\/p>\r\n<p><a href=\"https:\/\/cnrood.com\/contact\/\">Contact CN Red<\/a> for more info<\/p>\t\t<\/div>\n\t<\/div>\n<\/div>\r\n\t<div class=\"articles bg--offwhite automatic\">\r\n\t\t<div class=\"container\">\r\n\t\t\t<div class=\"articles__header\">\r\n\t\t\t\t\t\t\t\t\t<div class='heading-wrapper'><svg width=\"13\" height=\"13\" viewbox=\"0 0 13 13\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"6.394\" cy=\"6.5\" r=\"6.394\" fill=\"#000\"\/><\/svg><h2>Related articles<\/h2><\/div>\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"\/en\/profiel\/cn-rood\/\" class=\"button button--outline\">view profile<\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"post-grid post-grid--no-padding\">\r\n\t\t\t\t\n<a class=\"single-item single-item__articles\" href=\"https:\/\/fhi.nl\/en\/news\/kort-economisch-coronanieuws-van-26-mei\/\" data-id=\"41759\">\n\t<div class=\"single-item__articles-icon\">\n\t\t<svg width=\"35\" height=\"35\" viewbox=\"0 0 35 35\" fill=\"none\" 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single-item__articles-term--branche single-item__articles-term\">Industrial Electronics<\/span>\n\t\t\t\t\t\t\t\t<span class=\"button button--outline single-item__articles-term--branche single-item__articles-term\">Data centers<\/span>\n\t\t\t\t\t\t\t\t<span class=\"button button--outline single-item__articles-term--branche single-item__articles-term\">IT Infrastructure<\/span>\n\t\t\t\t\t\t\t\t<span class=\"button button--outline single-item__articles-term--branche single-item__articles-term\">News<\/span>\n\t\t\t\t\t<\/div>\n\t<div class=\"single-item__articles-author-date-wrapper\">\n\t\t\t\t\t<div class=\"single-item__articles-author\">\n\t\t\t\tFHI\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"single-item__articles-date\">\n\t\t\t\tNovember 26, 2025\t\t\t<\/div>\n\t\t\t<\/div>\n<\/a>\n\n<a class=\"single-item single-item__articles\" href=\"https:\/\/fhi.nl\/en\/news\/solar-boat-twente-launching-into-innovation-2\/\" data-id=\"54016\">\n\t<div 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29.873V9.22852C17.5 4.698 13.759 1.02539 9.22852 1.02539Z\" stroke=\"#2A5CEE\" stroke-width=\"2\" stroke-miterlimit=\"10\"\/>\n<\/g>\n<\/svg>\n\t<\/div>\n\t<div class=\"single-item__articles-title\"><div class='heading-wrapper'><h3>Solar Boat Twente: Launching into Innovation!<\/h3><\/div><\/div>\n\t<div class=\"single-item__articles-terms\">\n\t\t\n\t\t\n\t\t\t\t\t\t<span class=\"button button--outline single-item__articles-term--branche single-item__articles-term\">Members content<\/span>\n\t\t\t\t\t<\/div>\n\t<div class=\"single-item__articles-author-date-wrapper\">\n\t\t\t\t\t<div class=\"single-item__articles-author\">\n\t\t\t\tEurocircuits NV\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"single-item__articles-date\">\n\t\t\t\t15 January 2025\t\t\t<\/div>\n\t\t\t<\/div>\n<\/a>\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Submarine cables are deployed reliably through continuous optical validation before, during, and after installation. Testing gives operators the confidence to launch service, localize faults, validate repairs, and protect network performance across the full subsea cable lifecycle.<\/p>","protected":false},"featured_media":87438,"template":"","branches":[13],"events":[9,364,368,8],"secretariat":[],"categories":[16,17,19,57,21],"themes_tax":[511],"content_types":[514],"class_list":["post-87437","news","type-news","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How\u202fare submarine cables deployed with\u202ftop-tier reliability?<\/title>\n<meta name=\"description\" content=\"Submarine cables are deployed reliably through continuous optical validation before, during, and after installation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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