Open Access176Tb/s Nyquist PDM 16QAM signal transmission over 714km SSMF with the modified SCFDE technique
Author(s) -
Zhennan Zheng,
Rui Ding,
Fan Zhang,
Zhangyuan Chen
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.017505
Subject(s) - quadrature amplitude modulation , optics , polarization division multiplexing , nyquist–shannon sampling theorem , orthogonal frequency division multiplexing , spectral efficiency , qam , transmission (telecommunications) , bit error rate , physics , multiplexing , electronic engineering , wavelength division multiplexing , computer science , channel (broadcasting) , telecommunications , engineering , wavelength
Nyquist pulse shaping is a promising technique for high-speed optical fiber transmission. We experimentally demonstrate the generation and transmission of a 1.76Tb/s, polarization-division-multiplexing (PDM) 16 quadrature amplitude modulation (QAM) Nyquist pulse shaping super-channel over 714km standard single-mode fiber (SSMF) with Erbium-doped fiber amplifier (EDFA) only amplification. The superchannel consists of 40 subcarriers tightly spaced at 6.25GHz with a spectral efficiency of 7.06b/s/Hz. The experiment is successfully enabled with the modified single carrier frequency domain estimation and equalization (SCFDE) scheme by performing training sequence based channel estimation in frequency domain and subsequent channel equalization in time domain. After 714km transmission, the bit-error-rate (BER) of all subcarriers are lower than the forward error correction limit of 3.8 × 10(-3).