For North American data center operators and system integrators, Chinese optical module suppliers were once a “value-for-money option”—attractive on price, but not entirely reassuring in terms of capacity and lead-time certainty. That perception is now being rewritten by reality. Data from LightCounting shows that Chinese optical module manufacturers have already captured more than 60% of the global market share, and their share of the high-speed optical module market at 800G and above exceeds 70%. As 800G and 1.6T become mainstream specifications for AI data centers, avoiding Chinese suppliers is becoming increasingly unrealistic both technically and commercially.
But the increase in the number of suppliers has not made procurement decisions simpler. Facing dozens of Chinese manufacturers claiming 800G mass production capability, North American procurement teams need a framework that can see through marketing rhetoric and evaluate long-term value. The following four dimensions deserve close attention.
Capacity authenticity and localized footprint. There can be a large gap between a spec sheet saying “supports 800G mass production” and actually having stable shipment capability of tens of thousands of units per month. When evaluating a supplier’s capacity, do not look only at the total capacity figure it publishes. Pay attention to the composition of that capacity—how much is in-house versus outsourced, and how much is dedicated capacity for 800G products versus flexible capacity shared with lower-speed products. More importantly, examine whether the supplier has a capacity footprint in North America. Some leading Chinese manufacturers have already begun building manufacturing bases in the United States, such as constructing a new factory in Texas to serve North American hyperscale customers, with planned monthly capacity for 800G and 1.6T products in the hundreds of thousands of units. Localized capacity not only shortens supply chain response time, but also provides meaningful buffer against tariff policies and trade uncertainty.
Compliance and certification capability. Compliance requirements in the North American market are multi-layered: FCC certification is the basic threshold, NEBS compliance is a hard requirement for telecom customers, and CMIS protocol compatibility is a practical requirement for data center deployment. A supplier with long-term cooperation value should be able to proactively provide complete test reports for these certifications, rather than beginning preparation only after a customer requests them. Especially in NEBS certification, whether a supplier is willing to invest the time and cost to complete the full test suites for GR-63-CORE and GR-1089-CORE is itself a test of its quality commitment.
Supply chain resilience. The supply chain bottleneck for AI optical modules lies upstream—the capacity allocation of EML laser chips and CW-LDs directly determines module shipment capability. A resilient supplier should have long-term supply agreement coverage for core optical chips, rather than relying on spot market purchasing. Procurement teams can ask suppliers to explain their supply strategy for EML and CW-LD chips: Is there safety stock of more than six months? Have multi-year agreements been signed with upstream chip suppliers? Are there backup plans using alternative technology routes, such as external laser sources in silicon photonics solutions?
North American technical support capability. Optical module deployment issues often require rapid response at the customer site. The difference in problem response speed between a supplier with a technical support team only in Shenzhen or Wuhan and one with an applications engineering team in North America can be orders of magnitude. When evaluating this dimension, consider whether the supplier has an FAE (field application engineer) team in North America, whether it has completed joint validation testing with mainstream switch platforms, and whether it can provide localized firmware customization and failure analysis services.
The evaluation results across these four dimensions will often not all be perfect. The key is to find the balance point that matches your own business needs. For low-sensitivity scenarios pursuing the lowest possible price, capacity flexibility may be more important than a localized footprint. For telecom-grade deployments, NEBS compliance and reliability data should be weighted more heavily. But in any case, expanding the evaluation framework from “unit price and specifications” to “capacity certainty, compliance capability, supply chain resilience, and service capability” is a critical step for North American procurement teams to make wiser supplier choices in the current market environment.
