Title :
Implementation of 64QAM at 42.66 GBaud using 1.5 samples per symbol DAC and demonstration of up to 300 km fiber transmission
Author :
Buchali, Fred ; Klekamp, Axel ; Schmalen, Laurent ; Drenski, Tomislav
Author_Institution :
Bell-Labs., Alcatel-Lucent, Stuttgart, Germany
Abstract :
We demonstrate 400Gbit/s data generation using 64QAM at 42.66 GBaud with a reduced oversampling ratio of 1.5 Sample/symbol including digital Nyquist filtering and spectral pre-emphasis. Even at 24% FEC overhead a successful transmission over 300 km ULAF has been shown.
Keywords :
digital filters; digital-analogue conversion; forward error correction; optical fibre communication; quadrature amplitude modulation; 64QAM implementation; DAC; FEC; GBaud; ULAF; bit rate 400 Gbit/s; data generation; digital Nyquist filtering; digital to analog converter; fiber transmission; forward error correction; oversampling reduction; spectral preemphasis; ultra large area fiber; Adaptive optics; Bit error rate; Filtering; Forward error correction; Modulation; Optical filters; Parity check codes;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2014
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-5575-2994-7
DOI :
10.1364/OFC.2014.M2A.1
