PON technology

Passive OpticalNetwork ( PON) represents one of the most important directions in the deployment of optical access networks. Passive because no actively powered network elements need to be used between the ISP's exchange and the end customer. A significant advantage is the lower cost of construction and operation compared to active networks. Passive networks save both the number of fibre strands to be pulled (sharing the bandwidth of a single fibre by multiple subscribers) and the equipment needed to operate the network (simplifying the network elements in the provider's exchange). PON technology offers access to advanced "triple-play" services, i.e. Internet, TV and voice services. The GPON passive optical network standard allows transmission speeds of 2,4 /1,25 Gbps per user using WDM , this allows the transmission of signals in a single fibre using different wavelengths. New generations of NG-PON allow 10Gb/s , 50Gb/s and even 100Gb/s.