2020 Ranking of Optical Module Companies

The top optical module manufacturers in 2020 were led by II-VI, Huawei (HiSilicon), InnoLight, Hisense Broadband, and Eoptolink. 2020 Global TOP10 Optical Module SuppliersAccording to LightCounting, the ranking of global optical module suppliers in 2020 was as follows: II-VI (including Finisar) – II-VI, after acquiring Finisar, was the leading supplier in 2020, dominating high-speed optical transceivers for telecom and data center applications. Huawei (HiSilicon) – Ranked third in 2020, Huawei's HiSilicon division produced a wide range of optical modules, including coherent DWDM and high-speed data center modules.

Inno

Light Technology – A Chinese supplier, InnoLight steadily improved its market position, ranking among the top three in 2020, providing 100G, 200G, 400G, and 800G optical modules for cloud and telecom networks. Hisense Broadband – Ranked fourth in 2020, Hisense Broadband focused on optical modules for broadband access and telecom networks. Eoptolink – Ranked ninth in 2020, Eoptolink specialized in high-performance optical modules for data centers, FTTx, LTE, and transmission networks.

Accelink – Maintained its position at eighth, offering a full range of optical communication solutions, including silicon photonics and high-speed optical modules. Other notable suppliers – The remaining positions included a mix of Chinese and international companies, with some U. S. and Japanese suppliers gradually withdrawing from the market, reflecting the growing dominance of Chinese manufacturers.

Market Trends in 2020Chinese suppliers gained prominence: Companies like InnoLight, Eoptolink, and Hisense Broadband strengthened their positions, while Japanese and U. S. suppliers saw reduced market share. High-speed modules for data centers: The demand for 100G, 400G, and 800G modules accelerated, driven by cloud computing and AI workloads.

Supply chain localization: Chinese companies increasingly moved manufacturing to domestic or regional facilities to mitigate geopolitical risks and U. S. export restrictions. This ranking highlights the shift in the optical module industry toward Chinese suppliers, with II-VI remaining a strong international competitor, and underscores the growing importance of high-speed modules for modern data center and telecom infrastructure.