Title :
Transmission of Spectral Efficient Super-Channels Using All-Optical OFDM and Digital Coherent Receiver Technologies
Author :
Huang, Yue-Kai ; Ip, Ezra ; Wang, Zhenxing ; Huang, Ming-Fang ; Shao, Yin ; Wang, Ting
Author_Institution :
NEC Labs. America Inc., Princeton, NJ, USA
Abstract :
A 1.5 Tb/s super-channel is generated using all-optical orthogonal frequency-division multiplexing (OFDM) and dual-polarization 16QAM modulation without guard interval. We investigated the effects of DSP oversampling and receiver bandwidth using experimental results and numerical simulations to evaluate our receiver design. The super-channel is transmitted over 1200 km of standard single-mode fiber on existing 100 GbE network using only 200 GHz of optical bandwidth and detected using digital coherent receiver, achieving a spectral efficiency of 7 bit/s/Hz the highest reported to date for all-optical OFDM techniques.
Keywords :
OFDM modulation; optical fibre networks; optical modulation; optical receivers; quadrature amplitude modulation; 100 GbE network; DSP oversampling; all-optical OFDM; bit rate 1.5 Tbit/s; digital coherent optical technology; distance 1200 km; dual-polarization 16QAM modulation; guard interval; receiver bandwidth; spectral efficiency; spectral efficient super-channels; standard single-mode fiber; Digital signal processing; OFDM; Optical fiber communication; Optical receivers; WDM networks; Digital signal processing; optical fiber communication; optical signal detection; optical signal processing; orthogonal frequency-division multiplexing (OFDM); wavelength-division multiplexing (WDM) networks;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2172186
