All-Optical Regeneration for Global-Distance Fiber-Optic Communications

摘要: As optical amplifiers have opened new perspectives for ultra-highcapacity transmission of lightwave signals over transoceanic distances (more than 100 Gbit/s 10 000 km) fundamental limits are being felt. Such come from the combined effects amplifier noise accumulation, fiber dispersion, nonlinearities, and inter-channel interactions, contributing to various forms signal degradation. In order overcome these impairments meet ever-growing capacity needs, another technology revolution will soon be required. Promising developments concern in-line all-optical regeneration, which makes it possible transmit data virtually unlimited distances, without any electronic buffering. After recalling basic principle regeneration in systems, we describe state art experimental implementation. We also discuss alternative offered by highlight advantages approach, with its challenges.