Co-packaged optical products

Co-packaged optical products integrate optical components directly with electronic chips to deliver higher bandwidth, lower power consumption, and reduced latency for next-generation data centers and AI systems.

What Are Co-Packaged Optical Products?

Co-packaged optics (CPO) is a technology where optical components—such as lasers, photodetectors, and photonic integrated circuits (PICs)—are integrated directly alongside electronic components like switch ASICs, GPUs, or processors within the same package . This tight integration reduces the physical distance between optical and electrical elements, minimizing signal loss, improving bandwidth, and lowering latency compared to traditional pluggable optical modules .

Key Benefits

1. Power Efficiency: By collapsing electrical distances from inches to millimeters, CPO reduces energy loss and lowers power consumption, which is critical for AI data centers where data movement accounts for a large portion of energy use .
2. High Bandwidth: Direct integration enables multi-terabit data rates per node, supporting AI clusters and hyperscale computing environments .
3. Enhanced Performance: Signal integrity improves, latency decreases, and insertion loss is minimized, enabling faster and more reliable data transfer .
4. Scalability: CPO allows high-density fiber routing and scalable optical I/O, making it suitable for large-scale AI and HPC deployments .
5. Reduced Thermal and Space Constraints: Integrating optics with electronics reduces the need for bulky pluggable modules, improving thermal management and saving space in dense server environments .

Applications

• AI and Machine Learning Clusters: CPO supports massive data exchange between GPUs, switches, and memory systems, meeting the extreme bandwidth and low-latency requirements of AI workloads .
• High-Performance Computing (HPC): Enables faster interconnects between compute nodes, improving overall system throughput .
• Next-Generation Data Centers: Reduces power and cooling costs while supporting higher port densities and faster optical links .

Market Trends and Adoption

The CPO market is rapidly expanding due to AI infrastructure demands. Sales of lasers and photonic ICs for optical transceivers are projected to grow from $2.4 billion in 2023 to $5.9 billion by 2029 . Industry leaders like Corning and NVIDIA are investing in U.S.-based manufacturing to scale production and meet AI connectivity needs . By 2029, CPO deployments are expected to exceed 10 million units for high-speed ports, reflecting exponential growth in adoption .

Design and Technical Considerations

CPO design involves complex packaging, thermal management, and precise optical coupling. Advanced techniques such as 2.5D interposers, hybrid bonding, and system-technology co-optimization (STCO) are used to integrate photonic and electronic ICs efficiently . Simulation and design tools, including photonic circuit modeling and electro-optical co-simulation, are essential for optimizing performance and power efficiency .

Summary

Co-packaged optical products represent a fundamental shift in optical interconnect architecture, moving from module-level pluggable solutions to chip-level integration. They are essential for next-generation AI, HPC, and hyperscale data centers, offering higher bandwidth, lower power consumption, and improved scalability while addressing the limitations of traditional copper and pluggable optics .