A high-tech enterprise specializing in the research and development of optical fiber communications and manufacturing.
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A high-tech enterprise specializing in the research and development of optical fiber communications and manufacturing.
According to the latest industry report from Yole Group, driven by strong demand from AI data centers and high-performance computing (HPC) scenarios, the global photonics packaging market is set to witness substantial structural growth. It is projected to expand from approximately $4.5 billion in 2025 to $14.4 billion by 2031, with a compound annual growth rate (CAGR) of over 21%, marking a tripling of market size in just six years. This trend underscores the critical role of advanced optical interconnection technologies in supporting the next wave of digital infrastructure development.
CPO: The Industry-Recognized Ultimate Optical Interconnection Solution
Co-Packaged Optics (CPO) is widely acknowledged as the ultimate technical direction for future data centers. Leveraging 2.5D/3D advanced packaging technology, CPO integrates the optical engine for photoelectric conversion and switch ASIC chips on the same substrate, drastically shortening the electrical signal transmission path from over 100 millimeters in traditional solutions to the millimeter level.
This revolutionary architecture eliminates signal loss caused by PCB traces, removes the need for high-power DSP chips, and reduces power consumption by 30%-50% compared with conventional pluggable modules. It also delivers nanosecond-level ultra-low latency and a single-channel bandwidth density of 3.2T+, perfectly meeting the stringent requirements of ultra-large AI computing clusters.
While CPO faces challenges such as complex manufacturing processes, high technical thresholds and incomplete industry standards, continuous breakthroughs by global tech leaders are accelerating its commercialization. With the maturity of advanced packaging platforms and improved production yields, CPO is poised to lead the high-end AI data center market in the medium to long term.
NPO: A Pragmatic Transitional Route for Large-Scale Commercialization
Near-Package Optics (NPO) serves as a pragmatic and efficient transitional solution that balances performance and existing industrial chain compatibility. Retaining the independent optical engine design, NPO mounts the optical engine close to the ASIC chip on the switch motherboard, shortening electrical signal paths to the centimeter level, significantly reducing insertion loss while maintaining the replaceability and easy maintenance of optical components.
Compatible with mature optical module manufacturing processes, NPO does not require advanced chip co-packaging capabilities, enabling a smooth transition for the existing industry ecosystem. It has entered large-scale commercialization since 2026, with the global NPO market expected to grow at a CAGR of 19.3% from 2026 to 2034, reaching $18.6 billion by 2034. As a mature and reliable intermediate technology, NPO is the preferred choice for mainstream data centers to achieve performance upgrades in the short term.
XPO: A New High-Density Pluggable Option for AI Data Centers
Emerging as a third innovative route, XPO (Ultra-High Density Pluggable Optics) brings a new balanced solution to the industry. Tailored for the ultra-high bandwidth and high-density needs of next-gen AI GPU clusters, XPO is a new pluggable optical module standard that delivers up to 12.8Tbps of single-module bandwidth, with significantly improved panel density and power efficiency.
XPO retains the convenient operation and maintenance advantages of traditional pluggable optical modules, while matching the high-performance indicators of CPO/NPO. It adapts to full-scenario applications including intra-rack and inter-rack interconnection, and has gained recognition from global mainstream cloud service providers and equipment manufacturers. With the joint promotion of dozens of industry partners, XPO is set to form a tripartite competitive landscape alongside NPO and CPO.
Embracing the Future of Optical Interconnection
The evolution of NPO, CPO and XPO technologies reflects the industry's continuous pursuit of higher bandwidth, lower power consumption and higher integration for AI data centers. These three routes are not mutually exclusive; instead, they compleme each other across different application scenarios and development stages, jointly supporting the stable and efficient operation of global AI computing infrastructure.
Kexint always keep a close eye on cutting-edge optical interconnection technology trends, deeply lay out NPO, CPO and XPO innovative fields, and commit to providing customers with reliable, high-performance optical communication products and customized solutions. By closely aligning with the development needs of next-generation data centers, we will continue to empower the upgrade of global AI computing infrastructure with professional technology and high-quality products.
