What are the products of optical communication?
Device class, ZTE, HUAWEI, Lucent's optical transmission equipment. For example, ZTE's S320, 380/390 series, HUAWEI's OptiX series
You asked too broadFor example, light box, device categories ODF, jump fiber, optical transceiver, optical detector, light source, optical power meter, light attenuation meter, optical coupler, optical fusion splicer, optical connection equipment etc.