{"id":6226,"date":"2023-09-26T07:40:32","date_gmt":"2023-09-26T07:40:32","guid":{"rendered":"https:\/\/www.fibermall.com\/blog\/?p=6226"},"modified":"2023-10-26T08:05:53","modified_gmt":"2023-10-26T08:05:53","slug":"800g-osfp-optical-module-evolution-route","status":"publish","type":"post","link":"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm","title":{"rendered":"800G OSFP Optical Module Evolution Route"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#Route_1_EML_Route\" >Route 1: EML Route<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#Route_2_Silicon_Photonics_Route\" >Route 2: Silicon Photonics&nbsp;Route<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#800G_2xFR4_OSFP_Evolution_Route\" >800G 2xFR4 OSFP Evolution Route<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#800G_SR8_OSFP_Evolution_Route\" >800G SR8 OSFP Evolution Route<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#From_CPO_to_LPO\" >From CPO to LPO<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#CPO\" >CPO<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#LPO\" >LPO<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#Summary\" >Summary<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fibermall.com\/blog\/800g-osfp-evolution-route.htm\/#Related_Posts\" >Related Posts<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-route-1-eml-route\"><span class=\"ez-toc-section\" id=\"Route_1_EML_Route\"><\/span><strong>Route 1: EML Route<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-1-EML-Route-1024x371.png\" alt=\"Route 1 EML Route\" class=\"wp-image-6228\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-1-EML-Route-1024x371.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-1-EML-Route-300x109.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-1-EML-Route-768x278.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-1-EML-Route.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>800G DR8 OSFP optical module adopts eight 100G EML lasers, with a large number of lasers and high cost, which is one of the most mature solutions in the current technology. In the future, it is expected to realize<a href=\"https:\/\/www.fibermall.com\/sale-460482-800g-osfp-dr4-1311nm-500m-mpo-12.htm\" target=\"_blank\" rel=\"noreferrer noopener\"> 800G DR4 OSFP<\/a>, halve the number of lasers, reduce the cost, and in the long term, it is expected to be close to the price of 400G optical modules.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-route-2-silicon-photonics-nbsp-route\"><span class=\"ez-toc-section\" id=\"Route_2_Silicon_Photonics_Route\"><\/span><strong>Route 2: Silicon <\/strong><strong>Photonics<\/strong><strong>&nbsp;Route<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-2-Silicon-Photonics-Route-1024x405.png\" alt=\"Route 2 Silicon Photonics Route\" class=\"wp-image-6229\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-2-Silicon-Photonics-Route-1024x405.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-2-Silicon-Photonics-Route-300x119.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-2-Silicon-Photonics-Route-768x304.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/Route-2-Silicon-Photonics-Route.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The 800G silicon photonics currently adopts a dual-laser drive solution, which reuses\u00a0the current 400G DR4 solution. The cost is lower than the EML program. In the future, it will develop into a single-laser driving scheme, using a thin-film lithium niobate modulator to reduce the optical path loss. It can realize a single CW laser driving 8 optical signals. It is still in the sample stage, the mass production time is not determined.<\/p>\n\n\n\n<p>The silicon photonics single-laser solution\u00a0is expected to achieve mass production in 2025. By then, the 800G DR8 silicon optical module in the cost will be further reduced, but the mainstream is still a dual-laser silicon photonics\u00a0scheme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-800g-2xfr4-osfp-evolution-route\"><span class=\"ez-toc-section\" id=\"800G_2xFR4_OSFP_Evolution_Route\"><\/span><strong>800G 2xFR4 OSFP Evolution Route<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-2xFR4-OSFP-Evolution-Route-1024x338.png\" alt=\"800G 2xFR4 OSFP Evolution Route\" class=\"wp-image-6230\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-2xFR4-OSFP-Evolution-Route-1024x338.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-2xFR4-OSFP-Evolution-Route-300x99.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-2xFR4-OSFP-Evolution-Route-768x253.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-2xFR4-OSFP-Evolution-Route.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The 800G 2xFR4 uses 2 sets of 4-wavelength CWDM 100G EML lasers, each set containing 4 lasers. In the future, it will develop into FR4 using 4 CWDM wavelength 200G EML lasers.<\/p>\n\n\n\n<p>Because <a href=\"https:\/\/www.fibermall.com\/sale-460175-800g-osfp-2fr4-1310nm-2km-cs.htm\" target=\"_blank\" rel=\"noreferrer noopener\">800G FR4<\/a> requires 4-wavelength CWDM lasers, the silicon photonics solution\u00a0will also need to use 4-wavelength CWDM lasers. Therefore, the silicon photonics scheme does not have a cost advantage. The mainstream is the EML scheme, and no manufacturers are studying the silicon photonics scheme for now.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-800g-sr8-osfp-evolution-route\"><span class=\"ez-toc-section\" id=\"800G_SR8_OSFP_Evolution_Route\"><\/span><strong>800G SR8 OSFP Evolution Route<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-SR8-OSFP-Evolution-Route.png\" alt=\"800G SR8 OSFP Evolution Route\" class=\"wp-image-6231\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-SR8-OSFP-Evolution-Route.png 995w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-SR8-OSFP-Evolution-Route-300x99.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/800G-SR8-OSFP-Evolution-Route-768x252.png 768w\" sizes=\"(max-width: 995px) 100vw, 995px\" \/><\/figure>\n\n\n\n<p>The 800G SR8 adopts 8 VCSEL lasers with a transmission distance of 50m (OM3). Due to the short distance, the application scenarios are more limited than 400G SR8.&nbsp;By comparing the transmission distance of 10G, 25G, 50G, and 100G SR optical transceiver modules, we can see that the higher the single-channel rate of the VCSEL laser, the shorter its transmission distance.<\/p>\n\n\n\n<p>As the single-channel rate of optical modules becomes higher and higher, VCSEL has entered a bottleneck period. It is expected that by the time of the 1.6T optical module era, if the <a href=\"https:\/\/www.fibermall.com\/blog\/fibermall-1600g-optical-module-roadmap.htm\" target=\"_blank\" rel=\"noreferrer noopener\">1.6T optical module<\/a> uses a VCSEL laser, the distance will be further shortened. For customers\u2019\u00a0choice, the cable solution\u00a0of 1.6T will be a better option in terms of cost. Therefore, it is expected that VCSEL laser will withdraw from the market of 1.6T optical modules in the future.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container \" style=\"height: 100%;\"><iframe title=\"How to Use 800G OSFP SR8(MMA4Z00-NS) on NVIDIA Quantum-2 Switches | FiberMall\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/jvrQe4OTat4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-from-cpo-to-lpo\"><span class=\"ez-toc-section\" id=\"From_CPO_to_LPO\"><\/span><strong>From CPO to LPO<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/from-cpo-to-lpo-1024x333.png\" alt=\"from cpo to lpo\" class=\"wp-image-6232\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/from-cpo-to-lpo-1024x333.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/from-cpo-to-lpo-300x98.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/from-cpo-to-lpo-768x250.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/10\/from-cpo-to-lpo.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cpo\"><span class=\"ez-toc-section\" id=\"CPO\"><\/span><strong>CPO<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Compared with the traditional solution, as can be seen in the above figure, the CPO solution reduces one DSP chip, which further reduces power consumption and cost. At the same time, the CPO solution adopts the form of optoelectronic co-encapsulation, directly encapsulating the switching chip (which realizes the optoelectronic conversion function) onto the optical module, reducing the electrical signal loss from the switch to the optical module, thus reducing the delay and overall power consumption.<\/p>\n\n\n\n<p>However, problems also arise due to the optoelectronic co-packaging. Since the switch chip has to be packaged to the optical module, it becomes a problem whether the packaging is done by the optical module or the switch manufacturer. Also, if one optoelectronic chip group is broken, how to repair it, and who will repair it are technical issues. Therefore, it will take at least three years for large-scale mass production and application, or it may remain in a conceptual state for a long time.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-lpo\"><span class=\"ez-toc-section\" id=\"LPO\"><\/span><strong>LPO<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>As an alternative to the traditional solution, the LPO solution\u00a0has gained widespread attention since its launch.\u00a0The LPO solution\u00a0uses the technology of LPO linear direct drive to replace the DSP, and uses the TIA and DRIVER chips with high linearity and EQ function, which significantly reduces the power consumption. However, the latency is improved and the system BER and transmission distance are sacrificed. Therefore, LPO is temporarily used in specific areas (short distance) but may be used in the future for up to 500m to meet the largest demand in data centers.<\/p>\n\n\n\n<p>LPO technology is highly dependent on the openness and enhancement of the switch chip performance, such as the Tomahawk5 of T51.2T in signal recovery to improve the function. Overall, LPO, as a form of packaging for optical modules, is a downward evolutionary technology route for pluggable optical modules, which is easier to realize and more deterministic than the CPO solution.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-summary\"><span class=\"ez-toc-section\" id=\"Summary\"><\/span><strong>Summary <\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>EML laser solution\u00a0will be the mainstream scheme of <a href=\"https:\/\/www.fibermall.com\/store-21972-800g-qsfp-dd-osfp.htm\" target=\"_blank\" rel=\"noreferrer noopener\">800G optical modules<\/a> in the next two years, and EML demand will increase significantly.<\/li>\n\n\n\n<li>Silicon photonics scheme has more cost advantages than EML solution, but there are some challenges for mass production, and long-term reliability needs further verification. &nbsp;<\/li>\n\n\n\n<li>The next-generation 4X200G 800G optical modules will bring more cost advantages, and the long-term cost is expected to be close to that of 400G optical modules.<\/li>\n\n\n\n<li>LPO optical modules have power and cost advantages and bring value to users, but it will take some time to settle down as it face many technical challenges.<\/li>\n<\/ul>\n<style>\r\n\r\n        .lwrp.link-whisper-related-posts{\r\n            \r\n            margin-top: 40px;\nmargin-bottom: 30px;\r\n        }\r\n        .lwrp .lwrp-title{\r\n            \r\n            \r\n        }\r\n        .lwrp .lwrp-description{\r\n            \r\n            \r\n\r\n        }\r\n        .lwrp .lwrp-list-container{\r\n        }\r\n        .lwrp .lwrp-list-multi-container{\r\n            display: flex;\r\n        }\r\n        .lwrp .lwrp-list-double{\r\n            width: 48%;\r\n        }\r\n        .lwrp .lwrp-list-triple{\r\n            width: 32%;\r\n        }\r\n        .lwrp .lwrp-list-row-container{\r\n            display: flex;\r\n            justify-content: space-between;\r\n        }\r\n        .lwrp .lwrp-list-row-container .lwrp-list-item{\r\n            width: calc(100% - 20px);\r\n        }\r\n        .lwrp .lwrp-list-item:not(.lwrp-no-posts-message-item){\r\n            \r\n            list-style: decimal;\r\n        }\r\n        .lwrp .lwrp-list-item img{\r\n            max-width: 100%;\r\n            height: auto;\r\n        }\r\n        .lwrp .lwrp-list-item.lwrp-empty-list-item{\r\n            background: initial !important;\r\n        }\r\n        .lwrp .lwrp-list-item .lwrp-list-link .lwrp-list-link-title-text,\r\n        .lwrp .lwrp-list-item .lwrp-list-no-posts-message{\r\n            \r\n                \r\n        }\r\n        @media screen and (max-width: 480px) {\r\n            .lwrp.link-whisper-related-posts{\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-title{\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-description{\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-list-multi-container{\r\n                flex-direction: column;\r\n            }\r\n            .lwrp .lwrp-list-multi-container ul.lwrp-list{\r\n                margin-top: 0px;\r\n                margin-bottom: 0px;\r\n                padding-top: 0px;\r\n                padding-bottom: 0px;\r\n            }\r\n            .lwrp .lwrp-list-double,\r\n            .lwrp .lwrp-list-triple{\r\n                width: 100%;\r\n            }\r\n            .lwrp .lwrp-list-row-container{\r\n                justify-content: initial;\r\n                flex-direction: column;\r\n            }\r\n            .lwrp .lwrp-list-row-container .lwrp-list-item{\r\n                width: 100%;\r\n            }\r\n            .lwrp .lwrp-list-item:not(.lwrp-no-posts-message-item){\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-list-item .lwrp-list-link .lwrp-list-link-title-text,\r\n            .lwrp .lwrp-list-item .lwrp-list-no-posts-message{\r\n                \r\n                    \r\n            }\r\n        }<\/style>\r\n<div id=\"link-whisper-related-posts-widget\" class=\"link-whisper-related-posts lwrp\">\r\n            <h3 class=\"lwrp-title\">Related Posts<\/h3>    \r\n        <div class=\"lwrp-list-container\">\r\n                                            <ul class=\"lwrp-list lwrp-list-single\">\r\n                    <li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-molex.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Everything You Need to Know About Molex QSFP Assemblies and Interconnect Systems<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/smf-network.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Understanding the 5G SMF: A Comprehensive Administration Guide<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/fibermall-1600g-module-based-on-224g-per-lane.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">OCP EMEA 2025: FiberMall\u2019s 1.6T Pluggable Optical Module Based on 224G per Lane<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/what-are-optical-transceiver-modules-aoc-dac-acc.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Optical Interconnection Technology: What are Optical Transceiver Modules, AOC, DAC, and ACC?<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/video\/mpomtp-cables-100g-qsfp28-sr4.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">How to use MPO\/MTP Cables to connect 100G QSFP28 SR4 to communicate on the QSFP28 switch?<\/span><\/a><\/li>                <\/ul>\r\n                        <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Route 1: EML Route 800G DR8 OSFP optical module adopts eight 100G EML lasers, with a large number of lasers and high cost, which is one of the most mature solutions in the current technology. In the future, it is expected to realize 800G DR4 OSFP, halve the number of lasers, reduce the cost, and 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