CSTAR™-400 is a next-generation, small form factor BGA packaged, DSP-agnostic Silicon Photonics COSA transmitter and receiver operating up to 69Gbaud and optimized for use in 400G DCOs. LOS ANGELES, March 23, 2026 — A group of networking, semiconductor, and optics companies have formed the 400G Optical MSA (400 Gbps Optical Multi-Source Agreement) to develop the specifications for the optical interfaces necessary to enable a broad ecosystem of interoperable solutions. Under the. Yole Group unveils its latest photonic market and technology analyses, Silicon Photonics 2025 and Co-Packaged Optics for Data Centers 2025, which explore how AI-driven demand is reshaping connectivity, from transceivers to packaging innovation. These challenges are forcing innovation to happen at all levels, including pluggable modules. Our CSTAR SiPh are used to power our family of Photonic Service Engine (PSE) optics, including both our PSE-V. AI and cloud traffic surged, driving inter-data-center bandwidth purchases up 330% from 2020 to 2024. By 2025, operators moved past 400G, with 800G becoming the mainstream, and early pilots pushing into 1. In early 2024, primary North American. Discover how Corning is innovating optical communications for 400G and beyond. As the demand for higher bandwidth data.
