Electronics Letters · 2014 · 22 citations · 3 references
EngineeringCommunicationElectrical EngineeringOpticsOptoelectronicsPhotonicsFiber OpticsFiber-optic CommunicationModulationOptical Communication SystemsOptical FibersOptical ModulationExternal ModulationHigh-speed ModulationHigh-speed Optical ModulationModulation FormatsOptical Modulation FormatsOptical Transmission Systems
The first 25 Gbaud/s four‐level pulse amplitude modulation (PAM) of a 1.3 μm directly modulated laser (DML) is achieved and a 10 km transmission over a single‐mode fibre (SMF) with clear eye openings is demonstrated.
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