Which companies produce optical modules

Leading manufacturers of optical modules include InnoLight Technology, Coherent, Eoptolink, Huagong Tech, Accelink, and Applied Optoelectronics (AOI).Top Global Optical Module ManufacturersInnoLight Technology (Zhongji Innolight) – Headquartered in Suzhou, China, InnoLight is a global leader in high-speed optical transceivers, including 100G, 200G, 400G, and 800G modules. They serve cloud hyperscalers and telecom networks, providing solutions for AI clusters and data centers .Coherent (formerly Finisar) – Based in Pennsylvania, USA, Coherent manufactures a wide range of optical components, from VCSEL/EML laser chips to finished transceivers, catering to telecom and comprehensive optical applications .Eoptolink – Established in Chengdu, China, Eoptolink specializes in high-performance optical modules and devices for ICT industries, including data centers, FTTx, LTE, and smart grids .Huagong Tech – A Chinese manufacturer focusing on optical modules for telecom and data communication networks, providing high-speed solutions for backbone and core networks .Accelink – Another major Chinese optical module supplier, Accelink produces modules for 5G fronthaul, midhaul, backhaul, and data center applications .Applied Optoelectronics, Inc. (AOI) – AOI specializes in high-speed optical components, including lasers and transceivers, serving data centers, telecom, and cable TV industries globally .Linktel and CIG Shanghai Co., Ltd. – These companies are also recognized for producing optical modules and related components for high-speed networking and telecom applications .Additional Notable ManufacturersZygo – Known for high-energy laser components and precision optical systems .UltraFast Innovations – Specializes in advanced optical technologies, including biomedical optics .Edmund Optics – Offers custom and volume-manufactured optical and imaging components for industrial, life sciences, and defense markets .A. Optical Components Ltd. – Provides specialized optics for industrial, military, and medical applications .Industry ContextThe optical module industry is hierarchical, with optical chips → devices → modules → systems. Leading manufacturers often integrate R&D, design, packaging, testing, and sales, enabling them to supply high-speed modules compatible with 400G, 800G, and emerging 1.6T data center requirements . Chinese companies dominate the fast-growing 800G segment, while US-based firms like Coherent focus on comprehensive optical solutions . These companies are critical for data centers, telecom networks, AI clusters, and 5G/6G deployments, making them key players in the global optical communication supply chain.