{"id":10600,"date":"2026-05-13T10:32:39","date_gmt":"2026-05-13T10:32:39","guid":{"rendered":"https:\/\/cablefam.com\/?p=10600"},"modified":"2026-08-09T09:26:32","modified_gmt":"2026-08-09T09:26:32","slug":"differences-between-om2-om3-om4-om5-multimode-fiber","status":"publish","type":"post","link":"https:\/\/cablefam.com\/fr\/blog\/guides-tutorials\/differences-between-om2-om3-om4-om5-multimode-fiber.html","title":{"rendered":"Diff\u00e9rences entre les fibres multimodes OM2 \/ OM3 \/ OM4 \/ OM5 ?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">All OM2, OM3, OM4, OM5 are <strong>50\/125\u03bcm multimode fiber (MMF)<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They differ mainly in <strong>bandwidth, transmission distance, high-speed rate support, wavelength adaptation and application scenarios<\/strong>. Performance upgrades in order: <strong>OM2 \u2192 OM3 \u2192 OM4 \u2192 OM5<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Core Parameter Comparison<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parameter<\/th><th>OM2<\/th><th>OM3<\/th><th>OM4<\/th><th>OM5<\/th><\/tr><\/thead><tbody><tr><td>Fiber Core\/Cladding<\/td><td>50\/125\u03bcm<\/td><td>50\/125\u03bcm<\/td><td>50\/125\u03bcm<\/td><td>50\/125\u03bcm<\/td><\/tr><tr><td>Standard Released<\/td><td>1990<\/td><td>2002<\/td><td>2009<\/td><td>2016<\/td><\/tr><tr><td>Bandwidth @850nm<\/td><td>500 MHz\u00b7km<\/td><td>2000 MHz\u00b7km<\/td><td>4700 MHz\u00b7km<\/td><td>4700 MHz\u00b7km<\/td><\/tr><tr><td>Light Source<\/td><td>LED<\/td><td>VCSEL Laser Optimized<\/td><td>Enhanced VCSEL<\/td><td>VCSEL \/ SWDM Broadband<\/td><\/tr><tr><td>Jacket Color<\/td><td>Orange<\/td><td>Aqua Green<\/td><td>Aqua Green\/Magenta<\/td><td>Lime Green \/ Aqua Green<\/td><\/tr><tr><td>10G Transmission<\/td><td>82m<\/td><td>300m<\/td><td>550m<\/td><td>550m<\/td><\/tr><tr><td>40G \/ 100G<\/td><td>Not supported<\/td><td>100m<\/td><td>150m<\/td><td>150m (Longer with SWDM)<\/td><\/tr><tr><td>Technology<\/td><td>Traditional MMF<\/td><td>Laser-Optimized LOMMF<\/td><td>Low DMD High Bandwidth<\/td><td>WBMMF + SWDM<\/td><\/tr><tr><td>Wavelength Range<\/td><td>850nm \/ 1300nm<\/td><td>850nm<\/td><td>850nm<\/td><td>850\u2013940nm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Detailed Introduction<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">OM2<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Position: Legacy basic 50\u03bcm multimode fiber<\/li>\n\n\n\n<li>Performance: Low bandwidth, only suitable for 1G network; very short distance for 10G<\/li>\n\n\n\n<li>Application: Old campus network, legacy system compatibility; <strong>phased out in modern data centers<\/strong><\/li>\n\n\n\n<li>Couleur : <strong>Orange<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cablefam.com\/wp-content\/uploads\/OM2-Multimode5-300x300.jpg\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cablefam.com\/fr\/product\/duplex-om2-multimode-lc-upc-to-lc-upc-lszh-fiber-optic-cable.html\">C\u00e2ble \u00e0 fibre optique duplex multimode OM2 LC UPC vers LC UPC LSZH<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cablefam.com\/wp-content\/uploads\/imgi_9_A1405887512bb4606ab0255cb5c5bba5dQ-300x300.jpg\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cablefam.com\/fr\/product\/duplex-om2-multimode-sc-upc-to-sc-upc-lszh-fiber-optic-cable-2.html\">C\u00e2ble \u00e0 fibre optique duplex multimode OM2 SC UPC vers SC UPC LSZH<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">OM3<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Position: First-generation <strong>laser-optimized multimode fiber (LOMMF)<\/strong> for VCSEL<\/li>\n\n\n\n<li>Performance: 4\u00d7 bandwidth of OM2; 10G up to 300m, 40G\/100G up to 100m<\/li>\n\n\n\n<li>Application: Small &amp; medium data centers, mainstream 10G cabling<\/li>\n\n\n\n<li>Couleur : <strong>Aqua Green<\/strong><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cablefam.com\/wp-content\/uploads\/fiber-cable-om3-300x300.jpg\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cablefam.com\/fr\/product\/om3-fiber-optic-patch-cable-carrier-grade-lc-upc-to-lc-upc-duplex-3-0mm-50-125%ce%bcm-10gbps-multimode-riser-lszh.html\">OM3 Fiber Optic Patch Cable (Carrier grade) LC UPC to LC UPC Duplex 3.0mm 50\/125\u03bcm 10Gbps Multimode<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cablefam.com\/wp-content\/uploads\/OM3-Fiber4-1-300x300.jpg\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cablefam.com\/fr\/product\/om3-multimode-duplex-sc-upc-to-sc-upc-ofnp-fiber-cable.html\">OM3 Multimode Duplex SC UPC to SC UPC OFNP Fiber Cable<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">OM4<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Position: Enhanced upgraded version of OM3, lower DMD, higher stability<\/li>\n\n\n\n<li>Performance: Double bandwidth vs OM3; 10G up to 550m, 40G\/100G up to 150m<\/li>\n\n\n\n<li>Application: <strong>Mainstream choice for large data centers<\/strong>, long-distance high-speed links<\/li>\n\n\n\n<li>Couleur : <strong>Aqua Green\/Magenta<\/strong><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cablefam.com\/wp-content\/uploads\/Fiber-Optic-Patch-Cable-8-300x300.jpg\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cablefam.com\/fr\/product\/om4-lc-lc-duplex-multimode-fiber-patch-cord-lszh.html\">OM4 LC to LC UPC Fiber Optic Cord Cable 100\/40\/10Gb Multimode Duplex MMF 50\/125\u03bcm LSZH Fiber Optic<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cablefam.com\/wp-content\/uploads\/LC-TO-SC-OM4-3-300x300.jpg\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cablefam.com\/fr\/product\/om4-lc-sc-upc-40g-duplex-lszh-fiber-cable-50-125-ofnr.html\">C\u00e2ble de raccordement fibre optique LC vers SC UPC OM4 40G Multimode Duplex, 50\/125\u03bcm, OD 2.0mm, LSZH OFNR<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">OM5<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Position: Latest <strong>Wideband Multimode Fiber (WBMMF)<\/strong><\/li>\n\n\n\n<li>Core advantage: Supports <strong>SWDM (Short Wavelength Division Multiplexing)<\/strong><\/li>\n\n\n\n<li>Covers 850\/880\/910\/940nm wavelength range<\/li>\n\n\n\n<li>Realizes 100G\/200G over single fiber, saves cabling quantity and cost<\/li>\n\n\n\n<li>Application: Hyper-scale data centers, high-density 100G\/200G deployment<\/li>\n\n\n\n<li>Couleur : <strong>Lime Green<\/strong><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cablefam.com\/wp-content\/uploads\/m5l-1-300x300.webp\" alt=\"\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cablefam.com\/fr\/product\/lc-upc-to-lc-upc-duplex-om5-multimode-lszh-2-0mm-fiber-optic-patch-cable.html\">LC UPC to LC UPC Duplex OM5 Multimode LSZH 2.0mm Fiber Optic Patch Cable<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Key Summary<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Performance ranking: <strong>OM2 &lt; OM3 &lt; OM4 &lt; OM5<\/strong><\/li>\n\n\n\n<li>Cost ranking: <strong>OM2 &lt; OM3 &lt; OM4 &lt; OM5<\/strong><\/li>\n\n\n\n<li>Compatibility: OM3\/OM4\/OM5 are physically compatible; performance limited by the lowest-grade fiber in the link.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Selection Guide<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Legacy network renovation: Choose <strong>OM2<\/strong><\/li>\n\n\n\n<li>Small &amp; medium 10G cabling: Choose <strong>OM3<\/strong> (cost-effective)<\/li>\n\n\n\n<li>Large data center 40G\/100G long run: Choose <strong>OM4<\/strong><\/li>\n\n\n\n<li>High-density 100G\/200G &amp; fiber-saving deployment: Choose <strong>OM5<\/strong><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>All OM2, OM3, OM4, OM5 are 50\/125\u03bcm multimode fiber (MMF). They differ mainly in bandwidth, transmission distance, high-speed rate support, wavelength adaptation and application scenarios. Performance upgrades in order: OM2 \u2192 OM3 \u2192 OM4 \u2192 OM5. Core Parameter Comparison Parameter OM2 OM3 OM4 OM5 Fiber Core\/Cladding 50\/125\u03bcm 50\/125\u03bcm 50\/125\u03bcm 50\/125\u03bcm Standard Released 1990 2002 2009 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10604,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[1387,1383,1384,1385,1386],"class_list":["post-10600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides-tutorials","tag-multimode-fiber","tag-om2-fiber","tag-om3-fiber","tag-om4-fiber","tag-om5-fiber"],"_links":{"self":[{"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/posts\/10600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/comments?post=10600"}],"version-history":[{"count":2,"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/posts\/10600\/revisions"}],"predecessor-version":[{"id":10613,"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/posts\/10600\/revisions\/10613"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/media\/10604"}],"wp:attachment":[{"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/media?parent=10600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/categories?post=10600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cablefam.com\/fr\/wp-json\/wp\/v2\/tags?post=10600"}],"curies":[{"name":"bien jou\u00e9","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}