Potential China Optical Module Restrictions Benefit the U.S. Supply Chain, with COHR the Clearest Beneficiary
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Potential China Optical Module Restrictions Benefit the U.S. Supply Chain, with COHR the Clearest Beneficiary
If the United States restricts approvals for new Chinese data center optical components, the scarcity and pricing expectations for non-Chinese suppliers would improve, but capacity, qualification cycles, and InP substrate dependence make it difficult for the supply chain to substitute quickly.
- The reported restrictions have not yet become formal rules and are more likely to target future product approvals rather than installed equipment.
- Innolight and Eoptolink together account for about 50% of the optical module market; if their access to the U.S. market is restricted, the scale of replacement demand could be substantial.
- COHR is viewed as the clearest potential beneficiary due to its scale and vertical integration capabilities; AAOI and FN may also capture incremental demand.
- LITE has relatively low direct exposure to optical modules, but tight EML supply could persist longer, creating an indirect benefit.
- Current supply from non-Chinese vendors is insufficient to fully meet AI capex demand, making a large-scale near-term share shift infeasible.
- China-sourced InP substrates could become a reverse constraint, weakening U.S. optical vendors' capacity expansion capabilities.
Report interpretation
Overview
This report assesses the potential impact of the U.S. government and FCC possibly restricting new Chinese data center components, especially optical modules, from entering the U.S. market. Morgan Stanley believes the news is broadly positive for the non-Chinese optical supply chain, but the policy has not been formally released, and its scope, implementation approach, and treatment of Chinese components contained in non-Chinese brands all remain unclear. Because non-Chinese vendors have limited capacity and customer qualification takes time, even if the policy is implemented, it is more likely to extend supply-demand tightness and improve profit expectations than to immediately trigger a comprehensive redistribution of share.
Core views
The core view is that COHR is most likely to become the scaled beneficiary, with its vertical integration capabilities helping it capture replacement demand; AAOI and FN are also positioned to receive incremental orders. Although LITE is not a major optical module supplier, restrictions on Chinese competitors could prolong tight supply of EML lasers and ease market concerns about near-term margin ceilings. CIEN has limited direct competitive exposure in data centers, while GLW has limited benefit because U.S. data centers already make relatively little use of Chinese optical fiber. Policy implementation faces two main bottlenecks: insufficient non-Chinese optical module supply and U.S. vendors' dependence on Chinese InP substrates.
Analysis framework
The report uses a policy event-driven industry-chain transmission analysis: it first assesses the products and approval stages that potential rules may cover, then combines optical module market share, non-Chinese vendor capacity, cloud customer supplier qualification progress, and upstream InP substrate sources to evaluate each company's direct and indirect degree of benefit, while distinguishing between near-term valuation and margin expectation improvement and medium-term actual share transfer.
Methodology notes
Mapping regulatory restrictions to supplier access, order transfer, and earnings expectations
Potential rules are more likely to restrict future product approvals, so the impact would first appear as constrained choices for new suppliers rather than immediate replacement of installed equipment.
Assessing substitution speed by integrating capacity, customer qualification, and key raw material constraints
Even if Chinese suppliers are restricted, non-Chinese vendors must have sufficient capacity and complete cloud customer qualification, while also ensuring supply of upstream materials such as InP substrates, before they can actually take on orders.
Identifying potential beneficiaries based on existing share, scale, and degree of vertical integration
Innolight and Eoptolink together hold a relatively high market share, making the potential policy impact significant; COHR is considered most capable of capturing demand due to its scale and vertical integration.
Asset mapping & comparison
Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).
- COHRClearest scaled potential beneficiary
- Strengths
- Has relatively large scale and vertical integration capabilities, making it better positioned to capture non-Chinese optical module replacement demand.
- Weaknesses
- Overall industry supply is currently tight, and near-term capacity expansion remains constrained by manufacturing capabilities and customer qualification.
- Comparison
- Compared with other non-Chinese suppliers, COHR's ability to capture large-scale demand is more prominent.
- Risks
- Restricted Chinese InP substrate supply may constrain capacity expansion; the policy scope or implementation timing remains uncertain.
- LITEIndirect beneficiary
- Strengths
- If Chinese suppliers cannot ease market tightness, EML laser supply constraints may persist longer, helping improve margin expectations.
- Weaknesses
- Direct exposure to finished optical modules is lower than COHR's.
- Comparison
- Compared with COHR, LITE benefits more through upstream laser supply-demand and the pricing environment.
- Risks
- It depends on China-sourced InP substrates, and potential export or supply restrictions could offset part of the benefit.
- AAOIPotential order recipient
- Strengths
- As a non-Chinese optical supplier, it has an opportunity to absorb incremental demand.
- Weaknesses
- The report does not demonstrate that its current capacity is sufficient to capture large-scale market substitution.
- Comparison
- It has a potential benefit direction, but the certainty of scaled benefit is lower than COHR's.
- Risks
- Customer qualification time, capacity expansion speed, and policy details may delay order realization.
- FNPotential order recipient
- Strengths
- As a participant in the non-Chinese supply chain, it is expected to obtain part of the new demand.
- Weaknesses
- The share it can capture depends on specific product capabilities, capacity, and qualification status.
- Comparison
- Its potential benefit logic is similar to AAOI's, but the report still views COHR as the clearest scaled beneficiary.
- Risks
- The scope of policy implementation is unclear, and overall non-Chinese supply chain capacity is insufficient.
- CIENLimited potential benefit
- Strengths
- It has attempted to qualify more diversified suppliers, which helps reduce some supply chain risks.
- Weaknesses
- It is not a major direct competitor in the data center market.
- Comparison
- Compared with COHR, AAOI, and FN, the direct upside from the policy is smaller.
- Risks
- Supplier switching is still affected by qualification and tight industry supply.
- GLWLimited potential benefit
- Strengths
- U.S. data centers have relatively low existing dependence on Chinese optical fiber.
- Weaknesses
- Because Chinese optical fiber penetration in U.S. data centers was already not high, the substitutable market opportunity is limited.
- Comparison
- The degree of benefit is clearly lower than that of optical module and laser suppliers.
- Risks
- The market may overestimate the actual impact of the policy on optical fiber demand and the competitive landscape.
- Innolight and EoptolinkMain potentially restricted suppliers
- Strengths
- Together they account for about 50% of the optical module market and have a significant existing market position.
- Weaknesses
- If the United States restricts new product approvals for Chinese data center components, their access to the U.S. market and new business may be affected.
- Comparison
- Their potentially restricted share constitutes the main substitution opportunity for non-Chinese suppliers such as COHR.
- Risks
- Formal rules have not yet been released, and whether restrictions will cover the relevant products, brands, and supply chain structures remains uncertain.
- AXTIKey InP substrate supply chain-related party
- Strengths
- Can provide key InP substrates to optical laser and component vendors.
- Weaknesses
- Its supply sources are related to China, creating upstream dependence in the U.S. optical industry chain.
- Comparison
- Unlike downstream optical module beneficiaries, its importance mainly lies in determining whether substitute supply can expand.
- Risks
- If China adopts supply restrictions, InP substrate shortages could become the core bottleneck for non-Chinese vendors' capacity expansion.
Key data
- Combined market share of Innolight and EoptolinkApproximately 50%The report's estimate of the competitive landscape in the optical module market.
- Potential rule implementation timingPotentially within 2026Based on news reports; no formal rules have yet been released.
- COHR reference price$288.14As of 2026-08-03; the disclosure table lists the rating as Equal-weight.
- LITE reference price$779.89As of 2026-08-03; the disclosure table lists the rating as Equal-weight.
- Industry viewIn-LineExpected performance over the next 12 to 18 months is broadly in line with the North American benchmark S&P 500.
Impact & implications
At the policy level, if new access for Chinese optical modules is restricted, it could prolong the supply-tightness cycle for optical components in U.S. AI data centers and enhance non-Chinese suppliers' bargaining power, capacity value, and margin expectations. At the investment level, COHR has the strongest direct-benefit logic, AAOI and FN may receive incremental orders, while LITE is more likely to benefit indirectly through improved EML supply-demand conditions. However, capacity and qualification bottlenecks mean the realization of benefits may be slower than the market initially expects; if China further restricts InP substrate supply, the policy benefit could also be partly offset by upstream material shortages. Another potential solution path is for China and the United States to reach an arrangement on two-way procurement, including increased purchases of U.S. components by Chinese cloud vendors.
Risks
- News reports have not yet been formally confirmed by the White House or FCC, and final rules may not be issued, may be delayed, or may be significantly narrowed in scope.
- It remains unclear whether restrictions would cover Chinese components, Chinese brands, or non-Chinese modules containing Chinese parts.
- Existing capacity among non-Chinese vendors is insufficient to fully meet AI capex demand, and the substitution speed may be slower than expected.
- Cloud customer supplier qualification cycles are long, and orders cannot transfer immediately after the policy is issued.
- China-sourced InP substrates may face countermeasures or supply restrictions, creating a key upstream bottleneck.
- The market may price in too much policy benefit in advance, making related stock valuations sensitive to policy non-realization or implementation delays.
- Morgan Stanley has shareholding, investment banking, or other service relationships with multiple companies covered in the report, and investors should make prudent judgments in conjunction with the disclosures.
What to watch
- Whether the White House and FCC formally issue rules, implementation timing, and transition arrangements.
- Whether the rules restrict only future product approvals, and whether installed equipment is exempted.
- Specific identification standards for Chinese components, non-Chinese brand modules, and mixed supply chain products.
- COHR, LITE, AAOI, and FN's capacity expansion plans, delivery capabilities, and new customer qualification progress.
- The number of alternative suppliers qualified by AI cloud service providers and changes in actual procurement share.
- Potential export or supply measures China may take for key materials such as InP substrates.
- Whether China and the United States form a two-way procurement arrangement, including increased purchases of U.S. components by Chinese cloud vendors.
- The duration of EML supply tightness and its actual impact on LITE and COHR margins.