Title :
Experimental demonstration of the improvement of system sensitivity using multiple state trellis coded optical modulation with QPSK and 16QAM constellations
Author :
Le Taillandier de Gabory, Emmanuel ; Nakamura, Tatsuya ; Noguchi, Hidemi ; Maeda, Wakako ; Fujita, Sadao ; Abe, Jun´ichi ; Fukuchi, Kiyoshi
Author_Institution :
Green Platform Res. Labs., NEC Corp., Kawasaki, Japan
Abstract :
We evaluated experimentally 2, 8, 32 state 32Gbaud TCM-QPSK and TCM-16QAM. TCM offers finer configuration for flexible transponders increasing SE, on 1.1dB wider ranges. TCM may also be used with HD-FEC in lower power transceivers.
Keywords :
forward error correction; optical modulation; optical transceivers; quadrature amplitude modulation; quadrature phase shift keying; transponders; trellis coded modulation; HD-FEC in; TCM-16QAM; TCM-QPSK; flexible transponder; gain 1.1 dB; multiple state trellis coded optical modulation; power transceiver; Laboratories; OFDM; Optical pulse shaping; Quadrature amplitude modulation;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
