Europe Data Center Optical Connectivity Market Size & Share Analysis - Growth Trends and Forecast (2027 - 2032)

Market Trends and Insights

AI Cluster Bandwidth and 800G-To-1.6T Upgrade Cycles

The Europe data center optical connectivity market is being reshaped by the move from 400G to 800G and then toward 1.6T links. Each generation of AI accelerator requires more bandwidth at the GPU port, which increases the optical content of a training cluster. NVIDIA designed its Blackwell-based DGX GB300 systems for 1.6T InfiniBand XDR switch fabrics, linking compute choices directly to optical bills of materials. DE-CIX Frankfurt connected Deutsche Glasfaser to an 800 Gigabit Ethernet internet exchange port with Nokia 800G-ZR+ single-wavelength optics in November 2025. That deployment shows that 800G has moved beyond long-haul coherent links into peering and data center-edge use cases. Broadcom introduced its Taurus BCM83640 400G-per-lane optical PAM-4 DSP in March 2026, while Marvell expanded its 1.6T optical DSP portfolio, confirming that equipment suppliers are preparing for production deployments rather than distant trials.

Hyperscale and Colocation Capacity Expansion Across Europe

New hyperscale and colocation campuses are increasing demand for fiber paths, transceivers, and optical switching throughout the Europe data center optical connectivity market. Data4 confirmed a EUR 5 billion investment, equivalent to USD 5.65 billion, for a campus in Northern France that will include 4 next-generation data centers. The project illustrates the increasing importance of large AI-ready sites outside the most established facilities. Such sites require optical links that can support rack power densities above 100 kW, where copper becomes difficult to use beyond short distances. Colocation operators also need flexible physical-layer designs because tenants can add capacity in stages. Optical circuit switching, pre-terminated trunks, and high-density connectors can reduce installation work as halls are commissioned. The resulting construction activity supports demand across the optical stack rather than only for pluggable modules.

Energy-Efficient Optical Interconnects Under European Sustainability Rules

European Union reporting requirements are increasing attention to the energy used by data center networks. Directive (EU) 2023/1791 and Commission Delegated Regulation (EU) 2024/1364 require annual reporting for qualifying data centers with at least 500 kW of installed IT power. Operators therefore have a reason to select equipment that lowers power consumption per bit and supports Power Usage Effectiveness management. Linear pluggable optics can remove the DSP function and reduce power use per module compared with conventional DSP-based designs. STMicroelectronics began large-scale production of its PIC100 silicon photonics platform in 2026 for 800G and 1.6T optical modules. The EU-funded ADOPTION project is developing co-packaged photonics for high-efficiency cloud computing, which aligns research programs with these operating requirements.

Sovereign AI, Data Residency, and Regional Cloud Infrastructure Investment

Sovereign cloud programs are creating a separate source of demand for the European data center optical connectivity market. AWS launched the European Sovereign Cloud in January 2026, placing its first Region in Brandenburg and identifying sovereign Local Zones in Belgium, the Netherlands, and Portugal.^[1] The company disclosed planned investment of more than EUR 7.8 billion, equivalent to USD 8.81 billion, in German cloud infrastructure. These environments require dedicated physical and logical infrastructure, which limits the reuse of shared network assets across jurisdictions. In the Netherlands, an AI factory in Groningen received EUR 201 million, equivalent to USD 227 million, from EuroHPC, the Dutch government, and regional sources. Regional computing programs can increase demand for in-country fiber systems and optical switching even when deployments are smaller than global cloud campuses.

Power Availability, Grid-Connection Delays, and Data Center Deployment Constraints

Power availability can delay the installation of equipment across the European data center optical connectivity market. AWS stated in 2026 that European grid connections can take up to 7 years, while a data center can be developed in 2 years. A Dutch court ruled in April 2026 that the grid in Haarlemmermeer was full, pausing connection work near Schiphol. Mainova has also stated that new high-power connections in Frankfurt will not be available until the mid-2030s. Denmark's transmission operator Energinet paused new connection agreements for large consumers and warned that projects may face timelines of 5-10 years. The European Commission's 2025 Grids Package proposes a 2-year authorization limit for grid infrastructure, but new substations and transmission upgrades still take time to build.

CPO and NPO Manufacturing Yield, Serviceability, and Standardization Risk

Co-packaged and near-packaged optics provide higher bandwidth density, but their manufacturing and repair processes remain challenging. A thermal issue affecting an optical engine can disrupt a complete switching node, unlike a failed pluggable module that can be removed quickly. Marvell's Ara X and Aquila M DSPs for co-packaged optics began customer sampling in the first quarter of 2026, which indicates that broad deployment had not yet started. The Optical Compute Interconnect Multi-Source Agreement was formed in March 2026 by AMD, Broadcom, Meta, Microsoft, NVIDIA, and OpenAI.^[2] Its GEN1 and GEN2 specifications set out optical scale-up interfaces at 200 Gbps and 400 Gbps per direction. Operators still need reliable multi-vendor implementations before they can buy co-packaged solutions with the same confidence as pluggable optics.

*Our forecasts treat driver/restraint impacts as directional, not additive. The impact forecasts reflect baseline growth, mix effects, and variable interactions.

Europe Data Center Optical Connectivity Market Segment Analysis

Optical transceivers captured 41.38% of product-type revenue in 2026. Their position reflects the established use of 400G and 800G pluggable modules in leaf-spine networks at hyperscale and colocation sites. The installed base also favors field-replaceable modules when operators need to restore a failed port quickly. Active optical cables support fixed-length GPU-to-switch and storage connections within AI pods. Fiber-optic cable assemblies and connectors provide the physical foundation for every new data hall. Optical interconnect assemblies are gaining use in pre-terminated trunk configurations that reduce installation time in dense deployments.

Optical circuit switches are projected to expand at a 26.12% CAGR through 2032. They allow operators to change high-capacity traffic paths without adding electrical routing overhead. That capability is relevant when AI workloads shift between GPU clusters and leave fixed network paths underused. The OPTINET project, supported by the European Commission, has developed hybrid optical and electronic switching for real-time traffic management. Product selection, therefore, depends on whether a customer needs a stable physical connection or a programmable fabric. The Europe data center optical connectivity market continues to need both approaches as new halls combine conventional cloud applications with variable AI workloads.

Conventional pluggable optics held 76.24% of connectivity-architecture revenue in 2026. The format benefits from mature interoperability, established service practices, and a broad supplier base. Linear pluggable optics remove the DSP stage and can lower module power consumption where rack energy use is under pressure. Near-packaged optics offer a transition path by placing optical interfaces closer to the switch silicon without requiring full co-packaging. This can be attractive to operators that need greater density but remain cautious about serviceability. The Europe data center optical connectivity market retains a substantial installed base that supports pluggable procurement.

Co-packaged optics are projected to expand at a 29.41% CAGR from 2027 to 2032. Broadcom showcased a 102.4T Ethernet switch with co-packaged optics at OFC 2026. Marvell also demonstrated a 102.4T platform using 200G-per-lane silicon photonics at ECOC 2026. The ADOPTION project is targeting future switching capacity beyond 204.8 Tbps and port speeds of 6.4 Tbps. Hyperscalers are expected to qualify the early designs before enterprise and colocation customers deploy them at scale. This adoption sequence makes serviceability and yield performance central to the architecture decision.

The 800 Gbps tier accounted for 33.78% of data-rate revenue in 2026. QSFP-DD and OSFP modules using 8 channels of 100G-per-lane PAM4 have become common specifications for new AI-oriented racks. Their use reduces power per bit compared with prior 400G equipment. Up to 400 Gbps continues to serve existing data centers, enterprise facilities, and links where traffic requirements do not justify an 800G upgrade. The above-1.6 Tbps category remains early in its development cycle. NVIDIA and Cisco announced the USFP form factor in October 2026 for 400G-per-lane signaling and modules supporting up to 12.8 Tbps.

The 1.6 Tbps segment is projected to expand at a 30.14% CAGR through 2032. Marvell stated that its Ara 3nm 1.6T DSP platform was shipping in volume for hyperscale applications. This equipment supports AI fabric builds that require more bandwidth at each switch and accelerator interface. Silicon-photonics designs using 200G-per-lane technology may avoid indium phosphide in their modulation stages. Coherent 1.6T links used for data center interconnect can still depend on indium-phosphide electro-absorption modulated lasers. This difference in component design can influence supply exposure and the pace of deployment in the Europe data center optical connectivity market.

The 7-100-meter category held 31.62% of revenue in 2026. It covers server-to-leaf and leaf-to-spine connections within a data hall, which are central to scale-out network designs. Multimode fiber has historically served many short links. The move beyond 400G is increasing the use of single-mode fiber at some intra-hall distances because modal bandwidth limits become more restrictive. The 100-500-meter and above-500-meter groups serve links between buildings and across campuses. The 3-5-meter and 5-7-meter groups address direct connections from blades and racks to top-of-rack equipment.

The up-to-3-meter category is projected to expand at a 26.68% CAGR through 2032. This reflects the growing number of GPU-to-GPU and GPU-to-switch links inside high-density AI racks. NVIDIA GB300 NVL72 systems require a dense set of short connections between compute nodes and network equipment. Ayar Labs and Wiwynn announced a reference design for optically connected rack-scale AI systems in 2025.^[3] Rack power density is increasing the need for optical links where copper faces signal-integrity and thermal constraints. Very-short-reach optics will therefore remain a direct measure of rack-scale AI density.

Switch-to-switch connectivity accounted for 31.37% of application revenue in 2026. It remains important because spine-layer links carry traffic across both hyperscale and colocation environments. Server-to-switch connectivity is increasing as AI servers use higher-speed network interface cards. Storage connectivity supports NVMe-over-Fabric designs that require low latency between compute and persistent storage. GPU-to-switch links form the front-end network for AI clusters and use high-speed modules at the GPU NIC and switch port. Data center interconnect links also connect distributed training sites when operators cannot place all capacity at a single power-constrained location.

GPU-to-GPU connectivity is projected to expand at a 29.34% CAGR through 2032. It forms the back-end network of training clusters using NVLink, InfiniBand, and other scale-up fabrics. NVIDIA uses NVLink-C2C silicon photonics within the GB300 NVL72 rack to support chip-to-chip communication. Each successive AI cluster design increases the optical links needed between GPU nodes. The revenue mix is therefore shifting toward the application with the fastest deployment rate. This change gives the Europe data center optical connectivity market a closer relationship with accelerator architecture than with conventional enterprise networking refresh cycles.

Scale-out networks held 70.52% of segment revenue in 2026. Their lead is based on long-standing investment in leaf-spine Ethernet fabrics that can support large fleets of servers. Scale-out demand continues because most AI environments need a front-end network for general traffic and external data movement. Enterprise and colocation customers also use scale-out designs for inference workloads that do not require a large multi-rack GPU mesh. Corning announced a multi-year USD 3.2 billion commitment from NVIDIA in March 2026 to supply fiber for AI data centers. Conventional Ethernet deployment will remain a major source of cable volume across the Europe data center optical connectivity market.

Scale-up architecture is projected to expand at a 28.79% CAGR through 2032. The OCI MSA GEN1 specification defines 200 Gbps-per-direction optical scale-up interfaces using 4-lambda NRZ and wavelength division multiplexing. This gives buyers a standard for equipment that connects GPUs directly across a cluster. Scale-up architecture moves optical decisions closer to the compute team because accelerator designers define the form factor and channel requirements. The result is greater influence for AI platform vendors over optical roadmaps. Scale-out and scale-up designs are expected to operate together rather than displace each other.

Hyperscale facilities held 57.91% of segment revenue in 2026. They are also projected to expand at a 24.63% CAGR through 2032, making them both the largest and fastest-moving data center type. Microsoft, Google, AWS, Meta, and Oracle are pursuing European capacity programs for cloud and AI workloads. AWS launched a sovereign cloud region in Brandenburg with physical and logical separation from its existing Regions. This creates demand for dedicated optical systems instead of relying only on shared infrastructure. The Europe data center optical connectivity market benefits when new sovereign locations require separate transport and switching assets.

Colocation is the second-largest data center type by revenue. It serves enterprises that need AI capacity without building their own facilities. Enterprise data centers are adopting optical connectivity for inference workloads, although their port density is below that of large training clusters. Edge and micro data centers are smaller, but they need optical backhaul for distributed low-latency applications. The European Data Center Association projects European data center capacity to reach 23.6 GW by 2031. The broad spread of facility types supports varied demand for pluggable modules, structured cabling, and data center interconnect links.

Geography Analysis

Germany Data Center Optical Connectivity Market

Germany held 26.41% of regional revenue in 2026. Frankfurt remains a central connectivity hub because of DE-CIX and its concentration of colocation sites. DE-CIX reported that its Frankfurt data flow exceeded 45 exabytes annually in 2024, giving the country a large base for high-capacity network investment. AWS opened its sovereign cloud region in Brandenburg in January 2026 and disclosed more than EUR 7.8 billion, equivalent to USD 8.81 billion, in planned German cloud investment. Germany is also a priority area for energy-efficient optics because the European Union reporting regime raises the value of lower power-per-bit designs.

United Kingdom and France Data Center Optical Connectivity Market

The United Kingdom is the second-largest regional revenue contributor, supported by London's financial services users and hyperscale availability zones. The UK government identified silicon photonics as a priority within its 2026 AI Hardware Plan and committed GBP 2 billion, equivalent to USD 2.54 billion, for quantum and photonics manufacturing capabilities. France is expanding its AI-ready infrastructure through Data4's EUR 5 billion, equivalent to USD 5.65 billion, Northern France campus. The CanopAI project brings together Scintil Photonics, Presto Engineering, and CEA-Leti to develop photonic integrated circuits for AI data center interconnects. These programs increase local demand while also supporting European component development.

Southern and Northern Europe Data Center Optical Connectivity Market

Spain is projected to expand at a 25.31% CAGR through 2032, the highest country rate in the Europe data center optical connectivity market. SpainDC reported that hyperscale investment reached EUR 977 million, equivalent to USD 1.10 billion, in 2025 and forecast EUR 1.729 billion, equivalent to USD 1.95 billion, for 2026. The Iberian Peninsula has 35 submarine cables, 20 landing points, and 13 internet exchange points connecting more than 800 networks, supporting its position between Europe, Africa, and South America. Italy is gaining demand from enterprise cloud migration and availability-zone development in Milan. Finland is also attracting AI facilities, including Pure DC's EUR 1.5 billion-plus, equivalent to USD 1.70 billion, 110 MW campus in Seinäjoki and Sesterce's planned EUR 10 billion, equivalent to USD 11.3 billion, campus in Jämsä.^[4] These projects broaden the Europe data center optical connectivity market across Nordic and Southern European locations.