Who makes DCI / coherent optics for AI data centers
DCI / coherent optics (campus-to-campus, metro)
Coherent optical systems that carry data center interconnect (DCI) traffic between buildings on a campus or between metro sites, distinct from the shorter-reach optics inside a data hall.
DCI and coherent optics extend the network beyond the fiber and connectors of 3.11 that serve a single data hall, linking separate buildings on an AI campus or connecting sites across a metro area. This is a distinct technology from the direct-detect optics used inside a data hall (3.04): coherent transmission encodes more information per wavelength to cover longer distances, and the vendor base for coherent systems overlaps only partly with the vendor base for short-reach transceivers. As AI campuses grow beyond a single building and hyperscalers link multiple sites into one logical training cluster, demand for campus-to-campus and metro-scale coherent capacity grows with them. An investor should watch supplier concentration here separately from the rest of the optics stack, since coherent DCI has historically been a smaller, more specialized market than short-reach data center optics.
AI delta: Multi-building AI campuses and multi-site training clusters push more traffic onto campus-to-campus and metro coherent links than single-building data centers required.
Companies on this part (9)
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Adtran | manufacturer | public | ADTN | 6.43 USD | +0.5% | inferred | |
| Ciena | manufacturer | public | CIEN | 320 USD | +0.1% | inferred | |
| Cisco | manufacturer | public | CSCO | 107 USD | +1.4% | inferred | |
| Coherent | manufacturer | public | COHR | 209 USD | +2.3% | inferred | |
| Lumentum | manufacturer | public | LITE | 756 USD | +2.0% | inferred | |
| Marvell | manufacturer | public | MRVL | 229 USD | +3.7% | inferred | |
| Nokia | manufacturer | public | NOK | 8.14 USD | +2.9% | inferred | |
| ZTE | manufacturer | public | 000063.SZ | 28.16 CNY | +3.2% | inferred | |
| Huawei | manufacturer | private | inferred |
Who competes here
The same table read the other way: every company above competes for DCI / coherent optics sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.
Nearby parts
- Previous in layer: Fiber, connectors, structured cabling
- Next in layer: Timing & telemetry silicon
- Layer: Layer 3 — Networking & interconnect
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- Amazon Ring exec heads to Blue Origin to lead TeraWave network — Data Center Dynamics, 2026-10-13Blue Origin plans to develop a high-speed space link network to connect data centers.
- Nvidia and Cisco unveil new optics design to help scale AI factories — DigiTimes, 2026-10-13Nvidia and Cisco have introduced a new optical design engineered to support the scaling requirements of AI data centers.
- Commentary: Could a 65% US-content rule redraw China's 3.2T optical supply chain? — DigiTimes, 2026-10-12The article discusses how a potential 65% US-content requirement could significantly impact the global optical supply chain, particularly regarding China's dominance in components like transceivers and lasers.
- Growing pains: how distributed AI training changes the network between datacenters — The Register, 2026-10-09The article discusses how distributed AI training requirements are necessitating more robust and low-latency network architectures between data centers.
- Openreach taps Ciena for 1.6Tbps WaveLogic 6 technology — Data Center Dynamics, 2026-10-07Openreach has selected Ciena's WaveLogic 6 technology to support 1.6Tbps coherent optical networking for its infrastructure.
- Taiwan bets on SiPh, CPO to tackle AI data center power bottlenecks — DigiTimes, 2026-10-06Taiwan is positioning itself as a key manufacturing hub for silicon photonics and co-packaged optics (CPO) to address the massive power and density challenges of AI data centers.
- WhiteFiber Launches WhiteFiber Continuum Distributed GPU Supercluster Architecture — HPCwire, 2026-09-23WhiteFiber announced the commercial availability of WhiteFiber Continuum, a cross-data-center networking solution designed to eliminate bandwidth limitations for distributed GPU superclusters.
Questions about DCI / coherent optics
- What are DCI / coherent optics?
- Coherent optical systems that carry data center interconnect (DCI) traffic between buildings on a campus or between metro sites, distinct from the shorter-reach optics inside a data hall.
- Which companies make DCI / coherent optics for AI data centers?
- This catalog lists 9 companies on DCI / coherent optics, 8 of them with listed equity: Adtran, Ciena, Cisco, Coherent, Lumentum, Marvell, Nokia, ZTE, Huawei.
- How does AI change demand for DCI / coherent optics?
- Multi-building AI campuses and multi-site training clusters push more traffic onto campus-to-campus and metro coherent links than single-building data centers required.
- How reliable are these DCI / coherent optics supplier placements?
- The 9 placements on this part break down as 9 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.
Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON