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Meta reliability studies show positive results for Co-Packaged Optics in data center infrastructure
Monday, March 16, 2026 at 04:47 AM
New reliability studies from Meta indicate that Co-Packaged Optics (CPO) technology is demonstrating high performance and stability for high-speed data center interconnects.
Context
Recent data from Meta has confirmed a major reliability milestone for Co-Packaged Optics (CPO), reporting over one million cumulative 400G-equivalent port device hours without a single link flap. Conducted in collaboration with Broadcom, these studies utilize the Bailly 51.2T CPO switch and demonstrate that the technology is ready for production-scale deployment in hyperscale AI environments. This achievement addresses long-standing industry concerns regarding the stability of integrated optical engines compared to traditional pluggable modules.
The shift toward CPO is driven by massive efficiency gains, as the technology reduces optics power consumption by 65% to 73% compared to standard transceiver solutions. This transition is critical for next-generation data centers, such as Nvidia's upcoming GB300 NVL72 clusters, where optical power alone can reach tens of megawatts. By integrating silicon photonics directly with the switch ASIC, Meta and its partners are enabling higher bandwidth density and improved thermal management necessary for future 51.2 Tb/s and 102.4 Tb/s networking architectures.
Sources (7)
Broadcom Showcases Industry-Leading Quality and Reliability of Co-Packaged Optics | Broadcom Inc.Scaling AI Factories with Co-Packaged Optics for Better Power Efficiency | NVIDIA Technical BlogHPCwire - Since 1987 – Covering the Fastest Computers in the World and the People Who Run ThemCo Packaged Optics (CPO) – Scaling with Light for the Next Wave of InterconnectWhere co-packaged optics (CPO) technology stands in 2026 - EDNMetaOptics Ships Automatic Metalens Tester to Taiwanese Partner Pin-Jye Nano Technologies | MorningstarBroadcom proclaims Meta’s million-hour CPO deployment with no data drops - SDxCentral
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