{"id":5615,"date":"2023-08-27T06:39:56","date_gmt":"2023-08-27T06:39:56","guid":{"rendered":"https:\/\/www.fibermall.com\/blog\/?p=5615"},"modified":"2024-03-12T02:19:23","modified_gmt":"2024-03-12T02:19:23","slug":"what-is-lpo-optical-transceiver-module","status":"publish","type":"post","link":"https:\/\/www.fibermall.com\/blog\/what-is-lpo-optical-module.htm","title":{"rendered":"What is LPO Optical Transceiver Module?"},"content":{"rendered":"\n<p>In recent years, the optical communication industry has been developing rapidly. Driven by 5G and AI, optical communication technology has achieved great breakthroughs, and optical infrastructure has also made a qualitative leap. Especially this year, the AIGC large model became popular, and intelligent computing and supercomputing rose, which led to a new wave of development boom for optical communication. The backbone network 400G is about to be fully deployed, and the data centers 800G and 1.6T are also eager to try.<\/p>\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\/09\/OSFP-roadmap-1024x513.png\" alt=\"OSFP roadmap\" class=\"wp-image-5617\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/OSFP-roadmap-1024x513.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/OSFP-roadmap-300x150.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/OSFP-roadmap-768x385.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/OSFP-roadmap-1536x769.png 1536w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/OSFP-roadmap.png 1831w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\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\/what-is-lpo-optical-module.htm\/#The_Challenges_of_Optical_Communication_Evolution\" >The Challenges of Optical Communication Evolution<\/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\/what-is-lpo-optical-module.htm\/#What_is_LPO\" >What is LPO<\/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\/what-is-lpo-optical-module.htm\/#The_Advantages_of_LPO\" >The Advantages of LPO<\/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\/what-is-lpo-optical-module.htm\/#The_Current_Challenges_of_LPO\" >The Current Challenges of LPO<\/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\/what-is-lpo-optical-module.htm\/#Conclusion\" >Conclusion<\/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\/what-is-lpo-optical-module.htm\/#Related_Posts\" >Related Posts<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-the-challenges-of-optical-communication-evolution\"><span class=\"ez-toc-section\" id=\"The_Challenges_of_Optical_Communication_Evolution\"><\/span><strong>The Challenges of Optical Communication Evolution<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In fact, the technology iteration of optical communication is not a simple doubling of numbers.<\/p>\n\n\n\n<p>After entering the 400G stage, we have to solve not only the speed improvement but also the power consumption and cost issues brought by the high speed. Speed improvement is like truck delivery. When the cargo becomes heavier and heavier, you need to upgrade the engine. The larger the engine displacement, the higher the fuel consumption and the engine price and fuel cost will also increase.<\/p>\n\n\n\n<p>We take optical modules as an example.<\/p>\n\n\n\n<p>As a key device of optical networks and the most used device, optical modules have always been the focus of industry attention. Its power consumption and price are closely related to user purchase intention.<\/p>\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\/09\/800G.jpg\" alt=\"800G modules\" class=\"wp-image-5618\" style=\"width:600px\" width=\"600\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/800G.jpg 488w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/800G-300x188.jpg 300w\" sizes=\"(max-width: 488px) 100vw, 488px\" \/><\/figure>\n\n\n\n<p>Back in 2007, a 10 Gigabit (10Gbps) optical module was only about 1W of power.<\/p>\n\n\n\n<p>With 40G, 100G, 400G, and 800G, the power consumption of optical modules has skyrocketed, pushing 30W.<\/p>\n\n\n\n<p>It is important to realize that a switch can have more than one optical module. If it is fully loaded, there are often dozens of optical modules (if there are 48 of them, it is 48\u00d730=1440W).<\/p>\n\n\n\n<p>Generally speaking, the power consumption of optical modules accounts for about 40% or more of the power consumption of the whole machine. This means that the power consumption of the whole machine is highly likely to exceed 3000W.<\/p>\n\n\n\n<p>The surge in energy consumption of optical communication equipment also puts tremendous pressure on the energy consumption and cost of the entire data center, which is highly detrimental to the carbon peaking and carbon neutrality goals&nbsp;of communication networks.<\/p>\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\/09\/Compared-with-2010-the-energy-consumption-of-optical-devices-will-increase-26-times-1024x520.png\" alt=\"Compared with 2010, the energy consumption of optical devices will increase 26 times.\" class=\"wp-image-5627\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Compared-with-2010-the-energy-consumption-of-optical-devices-will-increase-26-times-1024x520.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Compared-with-2010-the-energy-consumption-of-optical-devices-will-increase-26-times-300x152.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Compared-with-2010-the-energy-consumption-of-optical-devices-will-increase-26-times-768x390.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Compared-with-2010-the-energy-consumption-of-optical-devices-will-increase-26-times.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Compared with 2010, the energy consumption of optical devices will increase 26 times.<\/p>\n\n\n\n<p>In order to solve the problem of energy consumption brought about by the rising rate of optical communication, the industry has carried out a lot of technical exploration.<\/p>\n\n\n\n<p>CPO, which was popular last year, is one of the solutions. This year, in addition to<a href=\"https:\/\/www.fibermall.com\/blog\/npo-and-cpo.htm\" target=\"_blank\" rel=\"noreferrer noopener\"> CPO<\/a>, the industry has put forward a new program &#8211; LPO.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-lpo\"><span class=\"ez-toc-section\" id=\"What_is_LPO\"><\/span><strong>What is LPO<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>LPO, the full name of the English called Linear-drive Pluggable Optics.<\/p>\n\n\n\n<p>As you can tell from the name, it is an optical module packaging technology.<\/p>\n\n\n\n<p>As shown in the figure below, there are optical module ports on the switch, insert the corresponding optical module into it, and then you can plug the fiber. If it is broken, it can also be replaced.<\/p>\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\/09\/Linear-drive-Pluggable-Optics-1024x622.png\" alt=\"Linear-drive Pluggable Optics\" class=\"wp-image-5619\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Linear-drive-Pluggable-Optics-1024x622.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Linear-drive-Pluggable-Optics-300x182.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Linear-drive-Pluggable-Optics-768x466.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Linear-drive-Pluggable-Optics.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>LPO emphasizes &#8220;pluggable&#8221; to distinguish it from CPO solution, in which optical modules are not pluggable. The optical module (optical engine) is moved closer to the switching chip and is directly &#8220;tied&#8221; to it.<\/p>\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\/09\/LPO-and-CPO-1024x685.png\" alt=\"LPO and CPO\" class=\"wp-image-5620\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-and-CPO-1024x685.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-and-CPO-300x201.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-and-CPO-768x513.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-and-CPO.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The key difference between LPOs and traditional optical modules is the Linear-drive.<\/p>\n\n\n\n<p>The so-called &#8220;linear drive&#8221; means that the LPO adopts linear direct drive technology, and the DSP (Digital Signal Processing) \/ CDR (Clock Data Recovery) chip is canceled in the optical module.<\/p>\n\n\n\n<p>So what is linear direct drive, what is the role of DSP, and why can it be eliminated? Why can it be canceled? What is the impact of the removal?<\/p>\n\n\n\n<p>Let&#8217;s start with the basic architecture of the optical module.<\/p>\n\n\n\n<p>Optical module transmission, that is, the process of electrical signals into optical signals, optical signals into electrical signals.<\/p>\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\/09\/Optical-module-transmission-1024x325.png\" alt=\"Optical module transmission\" class=\"wp-image-5621\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Optical-module-transmission-1024x325.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Optical-module-transmission-300x95.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Optical-module-transmission-768x244.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/Optical-module-transmission.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>At the transmitting end, the signal goes through a digital-to-analog converter (DAC), which changes it from a digital signal to an analog signal. At the receiving end, the analog signal goes through analog-to-digital conversion (ADC) and becomes digital again.<\/p>\n\n\n\n<p>After one operation, the digital signal obtained is a bit messy and distorted. At this time, the need for DSP, the digital signal &#8220;repair&#8221;.<\/p>\n\n\n\n<p>DSP is a chip running algorithms. It has a digital clock recovery function, and dispersion compensation function (to remove noise, nonlinear interference, and other factors), can fight and compensate for distortion, and reduce distortion on the system BER impact.<\/p>\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\/09\/DSP-compensation-and-estimation.png\" alt=\"DSP compensation and estimation\" class=\"wp-image-5622\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/DSP-compensation-and-estimation.png 463w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/DSP-compensation-and-estimation-300x231.png 300w\" sizes=\"(max-width: 463px) 100vw, 463px\" \/><\/figure>\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\/09\/DSP-module.png\" alt=\"DSP module\" class=\"wp-image-5624\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/DSP-module.png 664w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/DSP-module-300x228.png 300w\" sizes=\"(max-width: 664px) 100vw, 664px\" \/><\/figure>\n\n\n\n<p>(Note: DSP is not available in all traditional optical modules. However, in high-speed optical modules, the signal requirements are high, so DSP is basically needed.)<\/p>\n\n\n\n<p>In addition to DSP, the main electrical chips in optical modules include a laser driver (LDD), transimpedance amplifier (TIA), limiting amplifier (LA), and clock and data recovery chip (CDR).<\/p>\n\n\n\n<p>CDR is also used for data restoration. It extracts the data sequence from the received signal and recovers the clock timing signal corresponding to the data sequence, thus restoring the specific information received.<\/p>\n\n\n\n<p>DSP is very powerful. However, it also has high power consumption and cost.<\/p>\n\n\n\n<p>For example, in the <a href=\"https:\/\/www.fibermall.com\/store-21975-400g-qsfp112.htm\" target=\"_blank\" rel=\"noreferrer noopener\">400G optical module<\/a>, the 7nm DSP used, the power consumption is about 4W, accounting for about 50% of the power consumption of the entire module.<\/p>\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\/09\/the-power-consumption-1024x663.png\" alt=\"the power consumption\" class=\"wp-image-5625\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/the-power-consumption-1024x663.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/the-power-consumption-300x194.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/the-power-consumption-768x497.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/the-power-consumption-1536x994.png 1536w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/the-power-consumption.png 1576w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>From a cost perspective, the BOM (Bill of Materials) cost of the DSP in a 400G optical module accounts for about 20-40%.<\/p>\n\n\n\n<p>The LPO solution is to take out the DSP\/CDR chip in the optical module and integrate the related functions into the switching chip on the device side.<\/p>\n\n\n\n<p>In the optical module, only the Driver (Driver Chip) and TIA (Trans-Impedance Amplifier) with high linearity are left, and CTLE (Continuous Time Linear Equalization) and EQ (Equalization, Equalization) functions are integrated, respectively, for compensating high-speed signals to a certain extent. Equalization) functions are integrated to compensate for high-speed signals to a certain extent.<\/p>\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\/09\/LPO-solution-1024x750.png\" alt=\"LPO solution\" class=\"wp-image-5626\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-solution-1024x750.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-solution-300x220.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-solution-768x562.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/LPO-solution.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-advantages-of-lpo\"><span class=\"ez-toc-section\" id=\"The_Advantages_of_LPO\"><\/span><strong>The Advantages of LPO<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The advantages of LPOs are summarized as low power consumption, low cost, low latency, and easy maintenance.<\/p>\n\n\n\n<p><strong>Low Power Consumption<\/strong><strong><\/strong><\/p>\n\n\n\n<p>Without DSP, power consumption is down for sure.<\/p>\n\n\n\n<p>According to Macom&#8217;s data, the power consumption of an 800G multimode optical module with DSP function can exceed 13W, while the power consumption of an <a href=\"https:\/\/www.fibermall.com\/store-21972-800g-qsfp-dd-osfp.htm\" target=\"_blank\" rel=\"noreferrer noopener\">800G<\/a> multimode optical module utilizing MACOM PURE DRIVE technology is less than 4W.<\/p>\n\n\n\n<p><strong>Low cost<\/strong><strong><\/strong><\/p>\n\n\n\n<p>This is self-evident. As mentioned earlier, the BOM cost of DSP accounts for about 20-40%, which is eliminated. The driver and TIA integrate EQ, which slightly increases the cost, but the overall cost is still reduced. According to industry analysis: in an 800G optical module, the BOM cost is about 600-700 US dollars, and the cost of the DSP chip is about 50-70 US dollars. The driver and TIA integrate EQ functionality, which increases the cost by 3-5 US dollars. Calculated in this way, the total system cost can be reduced by about 8%, about 50-60 US dollars. It is worth mentioning that DSP is also a technology mastered by a few manufacturers such as Broadcom and Inphi. Cancelling DSP also reduces the dependence on a few manufacturers to some extent.<\/p>\n\n\n\n<p><strong>Low latency<\/strong><strong><\/strong><\/p>\n\n\n\n<p>Without DSP, one processing step is reduced, and the data transmission latency is also reduced. &nbsp;&nbsp;This advantage is especially important for AI computing and supercomputing scenarios.<\/p>\n\n\n\n<p><strong>Easy maintenance<\/strong><strong><\/strong><\/p>\n\n\n\n<p>This is relative to the CPO solution. In the CPO solution, if any device in the system breaks down, you have to power off and replace the entire board, which is very inconvenient for maintenance. &nbsp;&nbsp;The packaging of LPO has not changed significantly, supports hot swapping, simplifies fiber wiring and equipment maintenance, and is more convenient to use.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-current-challenges-of-lpo\"><span class=\"ez-toc-section\" id=\"The_Current_Challenges_of_LPO\"><\/span><strong>The Current Challenges of LPO<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Short communication distance<\/strong><strong><\/strong><\/p>\n\n\n\n<p>There is a price to pay for removing DSP. TIA and driver chips cannot completely replace DSP, so the system\u2019s bit error rate will increase. With a higher bit error rate, the transmission distance will naturally be shorter.&nbsp;The industry generally believes that LPO is only suitable for specific short-distance application scenarios. For example, the connection between servers and switches within data center cabinets, and the connection between data center cabinets.&nbsp;The initial development of LPO can connect distances from a few meters to tens of meters. In the future, it may be extended to within 500 meters.<\/p>\n\n\n\n<p><strong>Standardization is just starting<\/strong><strong><\/strong><\/p>\n\n\n\n<p>At present, LPO\u2019s standardization is still in its early stages, and there may be some challenges in interoperability.&nbsp;For enterprises, if they adopt LPO, they need to have certain technical capabilities, be able to formulate technical specifications and solutions, be able to explore the boundary conditions of devices and modules and be able to conduct a large number of integration and interoperability tests.<\/p>\n\n\n\n<p>In other words, LPO is currently more suitable for relatively closed and single-supplier systems. &nbsp;&nbsp;&nbsp;If multiple suppliers are used and they do not have the strength to control them, there may be problems such as \u201cdifficult to define problems, mutual shirking\u201d, which is worse than using traditional DSP solutions.<\/p>\n\n\n\n<p>In addition, some experts have pointed out that LPO brings some challenges to the electrical channel design on the system side.&nbsp;The current mainstream specification of SerDes is 112G, which will soon be upgraded to 224G.&nbsp;Experts believe that LPO cannot keep up with the requirements of 224G SerDes.<\/p>\n\n\n\n<p><strong>The industrialization progress of LPO<\/strong><\/p>\n\n\n\n<p>LPO solutions have actually been proposed by some companies before, but they have not achieved any results due to technical limitations. At this year\u2019s OFC conference, LPO was proposed again and soon became the focus of industry attention. &nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p>AWS, Meta, Microsoft, Google, and other major international market customers have expressed interest in LPO. Many optical communication giants have also invested resources in research and development. At present, FiberMall has launched an 800G LPO solution.<\/p>\n\n\n\n<p>Recently, some companies should have achieved small-scale shipments. The key to the LPO solution lies in the chip. The main suppliers of high-linearity TIA &amp; Driver are Macom, Semtech, Maxlinear, and others.<\/p>\n\n\n\n<p>According to predictions, LPO will achieve large-scale commercialization by 2024. More optimistic institutions in the industry believe that LPO can occupy half of the market share in the future. &nbsp;&nbsp;&nbsp;More conservative institutions believe that the share of CPO\/LPO will reach about 30% by 2026.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>LPO is a technology that balances and compromises. It adapts to a specific application scenario (short distance) and gives up DSP\/CDR, which results in a slight loss of performance (bit error rate). However, it also reduces power consumption, cost, and latency. It has different advantages and disadvantages than CPO. Although it emerged later than CPO, it will be deployed faster than CPO.<\/p>\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\/09\/comparison-of-different-solution-1024x434.png\" alt=\"comparison of different solution\" class=\"wp-image-5628\" style=\"width:800px\" width=\"800\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/comparison-of-different-solution-1024x434.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/comparison-of-different-solution-300x127.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/comparison-of-different-solution-768x326.png 768w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/09\/comparison-of-different-solution.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Following the current trend, LPO will be the most potential technology path in the 800G era. As the AIGC wave progresses, the data center optical network will advance to 800G. The golden age of LPO is approaching.<\/p>\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\/400g-dr4.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Understanding the Compatible 400GBase-DR4 QSFP-DD PAM4 1310nm<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/nvidia-hgx-b300-overview.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">NVIDIA HGX B300 Overview<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/400g-100g-pam4-and-silicon-photonics-technology.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">400G\/100G PAM4 and Silicon Photonics Technology<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/questions\/can-osfp-be-plugged-into-qsfp-dd-port.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Can I Plug an OSFP Module into a QSFP-DD Port, or a QSFP-DD Module into an OSFP Port?<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/16-port-layer-3-switch.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Everything You Need to Know About a 16-Port Full Gigabit L3 Managed PoE Switch<\/span><\/a><\/li>                <\/ul>\r\n                        <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>In recent years, the optical communication industry has been developing rapidly. Driven by 5G and AI, optical communication technology has achieved great breakthroughs, and optical infrastructure has also made a qualitative leap. Especially this year, the AIGC large model became popular, and intelligent computing and supercomputing rose, which led to a new wave of development [&hellip;]<\/p>\n","protected":false},"author":227,"featured_media":5619,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[2,30],"tags":[],"class_list":["post-5615","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-fiber-optic-transceivers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.13 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is LPO Optical Module? | FiberMall<\/title>\n<meta name=\"description\" content=\"As the AIGC wave progresses, the data center optical network will advance to 800G. The golden age of LPO is approaching.\" \/>\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.fibermall.com\/blog\/what-is-lpo-optical-module.htm\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is LPO Optical Transceiver Module?\" \/>\n<meta property=\"og:description\" content=\"In recent years, the optical communication industry has been developing rapidly. 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