Samsung Electronics is making a major push into silicon photonics, a technology critical for next-generation AI data centers that require massive amounts of data to flow between servers at lightning speed. The company's foundry division has secured orders from a leading optical communication module manufacturer and plans to begin mass production in the second half of 2026, according to recent earnings announcements.

Why Are AI Data Centers Suddenly Obsessed With Optical Technology?

Traditional copper cables used in data centers are hitting a physical wall. As artificial intelligence systems grow more powerful and require more data processing, the sheer volume of information moving between servers exceeds what electrical transmission can reliably handle. Optical transmission, which uses light instead of electricity to carry data, solves this bottleneck and is becoming essential infrastructure for AI facilities worldwide.

The shift toward optical communication is accelerating faster than many expected. Industry analysts forecast that co-packaged optics, or CPO, which integrates optical components directly into chip packages, will capture an increasingly large share of the data center market. Penetration is expected to reach 35 percent by 2030, up from much lower levels today.

What Is Samsung's Silicon Photonics Strategy?

In March 2026, Samsung Electronics formally announced its entry into the silicon photonics market, marking a significant expansion of its foundry business beyond traditional semiconductor manufacturing. The company has already achieved production readiness, completing a process design kit, or PDK, which is essentially a blueprint that allows manufacturers to begin production as soon as customers finalize their designs.

Samsung's manufacturing will operate on 300-millimeter wafers, the industry standard for high-volume production. The company initially plans to target photonic integrated circuits, or PICs, which are used in data center optical modules and optical engines for co-packaged optics applications. Most ambitiously, Samsung has outlined a roadmap to offer turnkey CPO services by 2029, meaning customers could order complete, ready-to-deploy optical solutions.

How Does Samsung's Approach Differ From Competitors?

Samsung's entry into silicon photonics puts it in direct competition with TSMC, the world's largest contract chipmaker. However, Samsung emphasizes a key competitive advantage: vertically integrated memory capabilities. Unlike TSMC, Samsung manufactures its own memory chips, including high-bandwidth memory, or HBM, which is essential for AI applications. This integration allows Samsung to design optical solutions that work seamlessly with memory components, potentially offering customers a more cohesive system.

TSMC, meanwhile, is pursuing a different strategy. The company has partnered with NVIDIA to integrate optical engines directly into switch packages. TSMC and NVIDIA introduced the Quantum-X Photonics InfiniBand switch for AI cluster interconnects and plan to launch the Spectrum-X Photonics Ethernet switch for broader networking applications in the second half of 2026.

Steps to Understanding Samsung's Silicon Photonics Timeline

• Current Phase (2026): Samsung is in talks with major global customers on commercialization and will begin mass production with a leading optical communication module manufacturer in the second half of 2026.
• Near-Term Goal (2026-2028): The company will focus on manufacturing photonic integrated circuits for data center optical modules and optical engines used in co-packaged optics applications.
• Long-Term Vision (2029): Samsung aims to roll out turnkey co-packaged optics services, allowing customers to purchase complete, integrated optical solutions rather than individual components.

The timing is critical. AI data centers are being built at an unprecedented pace, and the infrastructure to move data between servers is becoming a bottleneck. Companies that can deliver reliable, high-volume optical solutions will capture significant market share in what is shaping up to be a multi-billion-dollar opportunity.

Samsung's move into silicon photonics also reflects a broader industry trend. As AI workloads become more demanding, the semiconductor industry is fragmenting into specialized niches. Memory, processing, and now optical interconnects are all becoming distinct competitive battlegrounds. Samsung's decision to compete across multiple fronts positions it as a comprehensive supplier for AI infrastructure, a strategy that could prove valuable as hyperscalers and data center operators consolidate their vendor relationships.

The company's formal entry into silicon photonics in March 2026 and its aggressive timeline for mass production and CPO rollout signal serious commitment to this market. Whether Samsung can execute on its roadmap while competing against established players like TSMC and emerging optical specialists will be a key storyline in semiconductor and data center infrastructure over the next three years.