Title :
Experimental Demonstration of 429.96-Gb/s OFDM/OQAM–64QAM Over 400-km SSMF Transmission Within a 50-GHz Grid
Author :
Chao Li ; Xuebing Zhang ; Haibo Li ; Cai Li ; Min Lou ; Zhaohui Li ; Jing Xu ; Qi Yang ; Shaohua Yu
Author_Institution :
Sch. of Opt. & Electron. Inf., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
We experimentally demonstrate a 429.96-Gb/s signal transmission over a 400-km standard single-mode fiber within the 50-GHz grid and successfully achieve spectral efficiency as high as 8.63 bit/s/Hz. Orthogonal frequency-division multiplexing/offset quadrature amplitude modulation with 64-quadrature amplitude modulation is selected as the modulation format to provide a “perfect” rectangular spectrum that efficiently reduces the channel crosstalk. No timing or frequency alignment is required for the subbands to form the superchannel.
Keywords :
OFDM modulation; optical fibre communication; quadrature amplitude modulation; telecommunication channels; 64-quadrature amplitude modulation; 64QAM; OFDM; OQAM; SSMF transmission; bit rate 429.96 Gbit/s; channel crosstalk; distance 400 km; frequency 50 GHz; offset quadrature amplitude modulation; orthogonal frequency-division multiplexing; perfect rectangular spectrum; signal transmission; spectral efficiency; standard single-mode fiber; superchannel; Adaptive optics; OFDM; Optical filters; Optical modulation; Optical polarization; Optical transmitters; 50 GHz ITU-T grid; OFDM/OQAM; spectral efficiency;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2014.2331258
