Major companies manufacturing optical modules

Leading companies producing optical modules include Innolight, Eoptolink, Accelink, Coherent, Broadcom, Lumentum, Cisco, and Ciena.Major Optical Module ManufacturersInnolight (Zhongji Innolight, China) – Specializes in high-speed optical communication transceiver modules, including 100G, 200G, 400G, and 800G modules. It serves cloud data centers and telecom networks, providing solutions for 5G fronthaul, midhaul, and backhaul, as well as backbone and core network transmission modules . Eoptolink (Chengdu, China) – Offers a wide range of high-performance optical modules and devices for data centers, telecommunications, security monitoring, and smart grids. Its products comply with international standards such as TUV, CE, UL, FCC, FDA, RoHS, and REACH . Accelink Technology (China) – Provides optical transceivers for long-haul, metro, and access networks. Its vertically integrated business model allows scalable and cost-competitive production . Topstar Technology (China) – Manufactures optical transceivers including SFP, QSFP28, CFP, and other high-speed modules for data centers and telecom networks . Coherent Corp. (US) – Formerly II-VI/Finisar, Coherent supplies optical components, lasers, modulators, and optical modules for hyperscale data centers, telecom networks, and AI-centric infrastructure . Broadcom (AVGO, US) – Designs and produces high-speed SerDes, PAM4 DSP chips, and optical modules, including 100G–400G modules for hyperscale data centers and cloud providers. It is advancing co-packaged optics (CPO) solutions . Lumentum (LITE, US) – Manufactures laser drivers, modulators, photonic integrated circuits, and optical modules for short-reach, long-reach, and coherent applications . Infinera (INFN, US) – Combines InP-based photonic integrated circuits with DSP to deliver coherent optical modules for backbone networks . Ciena (CIEN, US) – Offers coherent optical chip technology and optical modules, as well as line cards for telecom and data center networks, supporting high-speed, long-distance optical communication . Cisco Systems (US) – Provides optical transceivers and modules for enterprise, data center, and telecom applications, integrating with its networking solutions .SummaryThese companies represent a mix of Chinese and international leaders in optical module production, covering a wide range of applications from data centers and cloud infrastructure to telecom networks and 5G deployments. Some, like Broadcom, Lumentum, Coherent, Infinera, and Ciena, are vertically integrated, producing both optical modules and photonic chips, which ensures supply chain stability and high-performance solutions . Choosing a manufacturer depends on factors such as data rate requirements (100G–800G+), application type, certifications, and integration capabilities.