Real-Time Demonstration of 600 Gb/s DP-64QAM SelfHomodyne Coherent Bi-Direction Transmission with Un-Cooled DFB Laser
Tao Gui, Xuefeng Wang, Ming Tang, Yi Yu, Yanzhao Lu, Liangchuan Li
Abstract
We report first successful real-time self-homodyne coherent bi-direction transmission demonstration with 600-Gb/s DP-64QAM under un-cooled ~7-MHz linewidth DFB laser. A novel coherent receiver is proposed to achieve automatic stabilization against polarization fluctuations of received LO.
Topics & Concepts
Laser linewidthQuadrature amplitude modulationHomodyne detectionOpticsDistributed feedback laserLaserTransmission (telecommunications)Polarization (electrochemistry)PhysicsDirect-conversion receiverOptoelectronicsMaterials scienceComputer scienceTelecommunicationsBit error rateChemistryChannel (broadcasting)Physical chemistryOptical Network TechnologiesPhotonic and Optical DevicesAdvanced Photonic Communication Systems