Title :
Phase-noise tolerant coherent polarization-multiplexed 16QAM transmission with digital delay-detection
Author :
Kikuchi, Nobuhiko ; Sasaki, Shinya ; Uda, Tetsuya
Author_Institution :
Central Res. Lab., Hitachi Ltd., Yokohama, Japan
Abstract :
We propose the use of receiver-side digital differential detection for coherent higher-order QAM signaling and demonstrate the improvement of laser linewidth and XPM tolerance in 320-km transmission experiment of 7-channel 80-Gbit/s PM-16QAM signals.
Keywords :
optical modulation; phase noise; quadrature amplitude modulation; telecommunication signalling; 7-channel PM-16QAM signals; XPM tolerance; bit rate 80 Gbit/s; coherent higher-order QAM signaling; cross-phase modulation; digital delay-detection; laser linewidth; phase-noise tolerant coherent polarization-multiplexed 16QAM transmission; quadrature amplitude modulation; receiver-side digital differential detection; Delay; Modulation; Optical fiber polarization; Optical polarization; Optical receivers;
Conference_Titel :
Optical Communication (ECOC), 2011 37th European Conference and Exhibition on
Conference_Location :
Geneva
Print_ISBN :
978-1-4577-1918-9
