Title :
A Novel Scheme to Generate 112.8-Gb/s PM-RZ-64QAM Optical Signal
Author :
Yu, Jianjun ; Zhou, Xiang ; Gupta, Shalabh ; Huang, Yue-Kai ; Huang, Ming-Fang
Author_Institution :
NEC Labs. America, Princeton, NJ, USA
Abstract :
We propose and experimentally demonstrate a novel scheme to generate eight-level electrical signals for a high-speed 64 quadrature amplitude modulation (64QAM) optical signal. The required optical signal-to-noise ratio at a bit-error rate of 2 x 10-3 for the single- (56.4 Gb/s) and dual-polarization (112.8 Gb/s) return-to-zero 64QAM is 21 and 26.5 dB, respectively.
Keywords :
error statistics; high-speed optical techniques; light polarisation; multiplexing; quadrature amplitude modulation; signal processing; PM-RZ-64QAM optical signal; bit rate 112.8 Gbit/s; bit rate 56.4 Gbit/s; bit-error rate; digital coherent detection; dual-polarization return-to-zero 64QAM; eight-level electrical signal generation; high-speed quadrature amplitude modulation; optical signal-to-noise ratio; polarization multiplexing; Digital coherent detection; eight-level electrical signal; polarization multiplexing (PDM); return-to-zero 64 quadrature amplitude modulation (RZ-64QAM); spectral efficiency;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2036737
