Title :
11 × 171 Gb/s PDM 16-QAM transmission over 1440 km with a spectral efficiency of 6.4 b/s/Hz using high-speed DAC
Author :
Yamanaka, Shogo ; Kobayashi, Takayuki ; Sano, Akihide ; Masuda, Hiroji ; Yoshida, Eiji ; Miyamoto, Yutaka ; Nakagawa, Tadao ; Nagatani, Munehiko ; Nosaka, Hideyuki
Author_Institution :
NTT Network Innovation Labs., NTT Corp., Yokosuka, Japan
Abstract :
We demonstrate 25-GHz-spaced eleven-channel 171 Gb/s PDM 16-QAM transmission over 1440 km. 16-QAM signals were generated by high-speed digital-to-analog converters. We achieved a record spectral efficiency-distance product of 9216 b/s/Hz-km (6.4 b/s/Hz × 1440 km) in the 16-QAM format.
Keywords :
digital-analogue conversion; quadrature amplitude modulation; 16-QAM signals; PDM 16-QAM transmission; high-speed DAC; high-speed digital-to-analog converters; spectral efficiency-distance product; Adaptive optics; Optical crosstalk; Optical fibers; Optical filters; Optical polarization; Optical transmitters;
Conference_Titel :
Optical Communication (ECOC), 2010 36th European Conference and Exhibition on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-8536-9
Electronic_ISBN :
978-1-4244-8534-5
DOI :
10.1109/ECOC.2010.5621344
