Electronics Letters · 1989 · 37 citations · 0 references
EngineeringCommunicationElectrical EngineeringDigital CommunicationPhotonicsFiber OpticsFiber-optic CommunicationOptical AmplifiersOptical Communication SystemsOptical FibersSignal AmplificationDirect-detection ReceiversErbium-doped Fiber AmplifiersFiber Optic Communication SystemsOptical Signal AmplificationRare-earth-doped AmplifiersRare-earth-doped Fibers
A nonrepeated fibre transmission experiment over 250 km is achieved at 1.8 Gb/s in a direct-detection repeater system using LD pumped Er3+-doped fibre amplifiers as pre and postamplifiers. Repeater gain of 50 dB is accomplished.