[News] Intel Claims Industry’s Only High-Volume 300mm InP Silicon Photonics Capability as CPO Gains Momentum
According to Wccftech, at the 2026 Open Compute Project (OCP) Global Summit, Intel — which is expanding its silicon photonics capabilities as demand for high-bandwidth optical interconnects grows across AI and high-performance computing (HPC) — claimed to be the only high-volume foundry capable of supplying 300mm indium phosphide (InP) silicon photonics at scale to the broader industry; the technology is intended to support next-generation near-package optics (NPO) and co-packaged optics (CPO). The source notes that conventional InP substrates are generally limited to 150mm (6-inch) wafers, with 3-inch and 4-inch formats still widely used, and that InP crystals are brittle, grow slowly, and present defect-control challenges, limiting laser chip output per wafer and slowing capacity expansion; Intel integrates InP-based laser technology into its 300mm silicon photonics manufacturing platform, aiming to improve production efficiency and scalability. Per TrendForce, NVIDIA has begun shipping its Spectrum-X CPO switches to select partners (developed jointly with TSMC using its Compact Universal Photonic Engine (COUPE) technology), Broadcom continues limited shipments of its 51.2 Tb/s Bailly CPO switches, and at OCP 2026 showcased its third-generation Tomahawk 6-Davisson CPO switch with 102.4 Tb/s of switching capacity and 200 Gbps per channel; TSMC plans to begin production of its COUPE-on-substrate solution in 2026, targeting twice the power efficiency and a tenfold reduction in latency compared with board-level pluggable optics. Per ijiwei, Zhongji Innolight has established a dedicated CPO production line and begun small-volume production of 800G CPO optical modules; some customers have placed orders, with shipments potentially beginning in 2027 and broader adoption expected in 2028, and in September 2026 Huawei introduced its NPO-based Ascend 960 supernode for large-scale AI training and inference. TrendForce states that testing remains a key obstacle to CPO mass production: while optical alignment times have fallen to seconds or less, complete testing of a single photonic integrated circuit (PIC) can still take more than 100 seconds, shifting the bottleneck toward testing speed and cost; TrendForce expects 2027 to be a pivotal year for integrating CPO testing systems, with 2028 a critical period for assessing readiness for large-scale production.
- Related manufacturers
- Intel, NVIDIA, Broadcom, TSMC, Zhongji Innolight, Huawei
- Part numbers
- 51.2 Tb/s BaillyTomahawk 6-DavissonSpectrum-XAscend 960COUPE
- Impact score
- 58 / 100, medium impact