Title :
Hybrid modulation formats outperforming 16QAM and 8QAM in transmission distance and filtering with cascaded WSS
Author :
Idler, W. ; Buchali, F. ; Schmalen, L. ; Schuh, K. ; Buelow, H.
Author_Institution :
Bell Labs., Alcatel-Lucent, Stuttgart, Germany
Abstract :
We developed time-domain hybrid-modulation with adaptive symbolrates to optimize the reach and margin of WSS routed 400 Gb/s systems. Experimental comparisons show, that a DP-8QAM/16QAM hybrid format can outperform the benchmark DP-8QAM and DP-16QAM formats in distance when up to 18 WSS are incorporated.
Keywords :
filtering theory; optical fibre communication; optical modulation; quadrature amplitude modulation; wavelength division multiplexing; DP-8QAM-16QAM hybrid format; adaptive symbol rates; cascaded WSS; time-domain hybrid-modulation; transmission distance; transmission filtering; wavelength selective switching; Bit error rate; Filtering; Modulation; Optical fibers; Optical noise; Signal to noise ratio; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
Conference_Location :
Los Angeles, CA
