IEEE Photonics Technology Letters · 2002 · 84 citations · 6 references
EngineeringCommunicationElectrical EngineeringDigital CommunicationOptoelectronicsPhotonicsFiber-optic CommunicationOptical Communication SystemsOptical ModulationOptical ModulatorsOptical Signal ProcessingAlternative FormatsHigh-speed Optical ModulationHigh-speed TransmissionModulation FormatsOptical Modulation FormatsOptical Transmission SystemsPulse ModulationReturn-to-zero Signaling
We show that pulse-to-pulse interaction at 40 Gb/s can be reduced by alternating the optical phase of adjacent bits by using either a modified-duobinary return-to-zero (RZ) modulation format or RZ with alternating phase. Also, the generation of ghost pulses can be greatly suppressed using the modified-duobinary and duobinary RZ format.
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