The upgrade cycle for AI's critical infrastructure is now just two years, half of what it was in the pre-AI era.
Fueling a rally in hardware stocks, the optical module industry has officially entered the 1.6T era as accelerating demand from AI applications forces a rapid upgrade cycle. Shares of key suppliers, including InnoLight (中际旭创) and Eoptolink (新易盛), surged more than 6% on April 10 to all-time highs after a report from Huatai Securities confirmed the commercialization of 1.6T products.
"The iteration cycle for optical modules has compressed from 3-4 years to just two years under the drive of rapid AI development," Huatai Securities analysts wrote in an April 10 note. The brokerage firm pointed to the recent OFC 2024 conference, where multiple vendors confirmed that 1.6T products have achieved mass production, moving on from the 800G modules that are currently the data center mainstream.
The commercialization of 1.6T modules is just the latest step in a relentless upgrade path. Market research firm LightCounting projects the global optical module market will maintain a 60% growth rate in 2026, with sales approaching $18 billion in 2025. By 2031, the firm expects the market to nearly reach $60 billion. Further out, Broadcom's recent release of the first 400G/channel DSP lays the groundwork for 3.2T modules, which are expected to begin commercial verification as early as 2027.
This accelerated roadmap signals a period of sustained investment and growth for the entire supply chain, driven by the massive compute requirements of AI models. The capital expenditures of North American cloud service providers are expected to remain high, directly benefiting the manufacturers of the high-speed networking components essential for AI clusters.
The production of next-generation optical modules requires a significant leap in manufacturing technology. As the industry moves toward 3.2T, co-packaged optics (CPO), and silicon photonics, the manual, semi-automated production lines of the past are no longer sufficient. Huatai Securities notes that automation equipment is now a "mandatory path" for mass production.
This shift is reflected in market data from Frost & Sullivan, which shows the global market for optical module packaging and testing equipment grew from 590 million yuan in 2020 to 5.18 billion yuan in 2024, a compound annual growth rate of 71.8%. This market, which includes chip attach machines, coupling equipment, and wire bonders, is expected to continue its rapid expansion with the introduction of 1.6T and 3.2T products.
The performance of these advanced optical modules is critical, placing new demands on testing instruments. The global market for optical communication test instruments is projected to grow from $950 million in 2024 to $2.02 billion by 2029, according to Frost & Sullivan.
In China, this market is largely dominated by overseas firms like Keysight and Anritsu, which held a combined 84% market share in 2024. Huatai Securities sees a significant opportunity for domestic Chinese equipment and instrument manufacturers to gain share as their technology catches up to the global leaders, a process accelerated by the current demand cycle. This potential for domestic substitution, combined with the overall capacity expansion, underpins a strong growth outlook for the sector.
This article is for informational purposes only and does not constitute investment advice.
