Major optical modules manufacturers and suppliers: Innolight, Eoptolink, Huagong Tech, Linktel, Accelink, CIG ShangHai CO. Upstream optical chips. This section provides a list of the top 10 Optical Module manufacturers, Website links, company profile, locations is provided for each company. A majority of the Japanese and US-based suppliers exited this market by 2020, while Chinese vendors improved their rankings. 4426391 EOLO-138HG-G2-AC OPTICAL MODULE,800G,OSFP. 4226989 T-DP4CNT-NWD OPTICAL MODULE. Recently, LightCounting, a well-known market research organization in the optical communication industry, released the latest issue of its market report and updated the TOP10 ranking of global optical module suppliers. The latest data shows that Xutron Technology and II-VI acquired Finisar, the.