Introduction
In 2026, the global optical communication market is experiencing unprecedented supply-demand tension. From indium phosphide substrates to high-speed optical modules, from optical fiber preforms to Faraday rotators, capacity bottlenecks have concentrated across multiple segments simultaneously. How long can this super cycle driven by AI computing demand actually last?
1. Demand Explosion: AI Computing Reshaping Optical Communication
1.1 Data Traffic Growing Exponentially
In Q1 2026, domestic AI large model daily Token usage exceeded 14 trillion, a surge of 1,400x from end of 2025. Global AI data traffic share skyrocketed from 15% in 2022 to 45%. Smart computing centers demand for high-speed optical modules grows geometrically. A 100,000-GPU AI cluster requires 20x more optical modules than traditional servers.
1.2 1.6T Optical Module Commercial Year
2026 is defined as the year of 1.6T optical module scale deployment. 800G optical module demand maintains steady growth with continuous technology iteration. ZJ Information Q1 2026 report shows company revenue reached 19.496 billion RMB, up 192.12% YoY, with net profit of 5.735 billion RMB, up 262.28% YoY. Global AI-dedicated optical transceiver market expected to expand from $16.5B in 2025 to $26B in 2026, over 57% growth.
2. Supply Bottlenecks: Multiple Chain Segments Under Strain
2.1 Indium Phosphide: 70% Supply Gap
Indium phosphide is the core material for 800G/1.6T optical modules, with each 800G module requiring 4-8 indium phosphide laser chips. Global effective capacity is only 750,000 wafers/year while demand reaches 2.6 million wafers/year, with over 70% gap. 6-inch high-end indium phosphide substrate price surged from $800 in early 2025 to $2,300-2,500 in March 2026, up over 187%.
2.2 High-Speed Optical Chip Capacity Maxed
Industry leaders like Lumentum clearly state that EML and CW laser chip backlog orders exceed 2 years. Global EML and CW laser capacity is basically at full production, with major players in North America, Japan, and China all at capacity limits, yet facing delivery pressure.
2.3 Supply Chain Ripple Effects
Broadcom product marketing director points out high-end PCB delivery cycles for optical transceivers extended from ~6 weeks to 6 months. Granopt Japan announced significant reduction in Faraday rotator production, with delivery cycles extending from weeks to 6-9 months. Domestic G.652D single-mode fiber price surged from 18 RMB/km to 85-120 RMB/km, up 450-567%.
3. Technology Evolution: 50G PON Accelerates, 200G PON Emerging
3.1 50G PON Scale Commercial Deployment
50G PON, as the signature technology of F5G (5th Generation Fixed Network), has transitioned from standard development to initial commercial deployment. It supports co-existence with GPON and 10G PON on existing ODN infrastructure, with maximum transmission distance of 20km and split ratio up to 1:64, minimizing operator network upgrade costs.
3.2 200G PON Technology Research Starting
While 50G PON is just taking off, 200G PON technology prototypes have appeared at international exhibitions. Domestic manufacturers took the lead in solving coherent technology and PON burst mode adaptation challenges. ZTE showcased 200G PON ONU prototype at MWC using self-developed optical signal flash switch technology achieving nanosecond-level burst frame control.
4. ODN Network Products Embracing Opportunities
4.1 Optical Distribution Network Upgrade Demand
With 50G PON and FTTR scale commercial deployment, optical distribution network (ODN) products face upgrade opportunities. Splice boxes, junction closures, and terminal boxes require supporting larger split ratios and higher-speed transmission.
4.2 Pre-Connector Technology Gaining Favor
Pre-connector cable assemblies and pre-terminated splice boxes are widely recognized in overseas operator FTTH deployment due to easy installation and simple maintenance. Especially in Europe, Middle East, and Southeast Asia, pre-connector solutions continue increasing penetration in fiber-to-the-home projects.
5. Outlook: Can the Super Cycle Continue?
5.1 Positive Factors
- AI large model iteration continues, long-term computing demand growth
- Global major cloud vendor capex continues rising
- Thin-film lithium niobate, silicon photonics and other new technologies gradually maturing
- Domestic substitution accelerates, supply chain self-control improves
5.2 Uncertainty Factors
- Upstream material capacity expansion cycles are long (indium phosphide expansion needs 2-3 years)
- High-end DSP and advanced packaging capacity constrained by TSMC
- ASP declining 15-20% annually is the industry iron rule
- New technology routes (like CPO) commercialization timeline uncertain
Conclusion
The supply-demand tension in the 2026 optical communication industry chain is essentially the result of AI computing demand explosion mismatched with traditional capacity expansion cycles. The duration of this super cycle depends on upstream material capacity expansion progress, new technology commercialization pace, and global AI computing construction rhythm. For ODN product suppliers, capturing upgrade opportunities from 50G PON and FTTR while increasing high-value product share like pre-connector solutions will be key to securing favorable positions in this industry transformation.
References: ZJ Information Q1 2026 Report, Securities Daily, LightCounting, TrendForce, OFC 2026 Exhibition