In current communicationis ager maxime includit Proin Communication, Satellite Communication et optical fibra communicationis et tantum. Among them, the optical fiber communication has high transmission rate, simple equipment, long transmission distance, strong anti-jamming capability and the transmission loss is small, and many other advantages, is the main development direction in the field of modern communication, has become one of the main technology of modern information highway communication network. Optica fibra communicationis ratio involves ad optical switch, optical Isolator, optical Attenuator, optical coupler et optical unam division multiplexer et aliis cogitationibus. Optical switch est unus de magna fabrica, eius principalis munus est ut animadverto optimus fibra communicationis ratio inter par vel numerus alimentorum fibra opticus lucem iter mutatis ad invicem. Est propius integrated optical, mechanica et electrica integrated machinam. Et perficientur habet momenti auctoritas in communicationis totius ratio. Sunt multa genera optical fibra type etiam. Etiam habet commoda et incommoda, diversis generum diversis. Communicationis ex corde principium, servitium transferre, excedat mos requisitis, quid melius satiata, vultus deinceps ad cooperante tecum. Parvus faciunt usque Collin
