2006 · 12 citations · 0 references
EngineeringElectrical EngineeringOpticsOptoelectronicsPhotonicsFiber OpticsOptical Communication SystemsOptical FibersOptical InterconnectsOptical ModulationOptical Signal ProcessingCoherent DetectionCoherent Optical CommunicationCoherent Optical Signal ProcessingDirect DetectionDirect-detection Optical CommunicationHeterodyne DetectionOptical Access NetworksOptical Networking
The coherent WDM-PON based on optical heterodyne detection is an attractive way to realize a truly advanced access network. We propose and demonstrate a simple ONU structure; it uses a directly modulated local laser and digital signal processing to reduce heterodyne ONU cost.