Investigation of interchannel nonlinear tolerance of 256-Gb/s polarization-division multiplexing return-to-zero 16-ary quadrature amplitude modulation in a hybrid wavelength-division multiplexing transmission system using optical comb

Feng Tian; Xiaoguang Zhang; Lixia Xi; Andrew J. Stark; Stephen E. Ralph; Gee-Kung Chang

doi:10.1117/1.OE.53.1.016111

20 January 2014 Investigation of interchannel nonlinear tolerance of 256-Gb/s polarization-division multiplexing return-to-zero 16-ary quadrature amplitude modulation in a hybrid wavelength-division multiplexing transmission system using optical comb

Feng Tian, Xiaoguang Zhang, Lixia Xi, Andrew J. Stark, Stephen E. Ralph, Gee-Kung Chang

Author Affiliations +

Funded by: National Natural Science Foundation of China, Specialized Research Fund for the Doctoral Program of Higher Education of China, Higher Education Research Fund, Open Fund of State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, China

Optical Engineering, Vol. 53, Issue 1, 016111 (January 2014). https://doi.org/10.1117/1.OE.53.1.016111

Abstract

By applying recirculating frequency shifter technology to generate optical comb as neighboring channels, we have experimentally investigated the interchannel nonlinear tolerance of 256-Gbit/s polarization-division multiplexing return-to-zero 16-ary quadrature amplitude modulation (PDM-RZ-16QAM) in a co-propagation with 32-Gbaud on-off keying, binary phase-shift keying, quadrature phase-shift keying (QPSK) signals in 792-km large-area fiber transmission system. The results show that the experimental back-to-back optical signal-to-noise ratio requirement of 256-Gbit/s (32-GBaud) PDM-RZ-16QAM signal is shifted by 4.8-dB penalty in comparison with the theoretical limits. The cross-phase modulation (XPM) tolerance for 256-Gbit/s PDM-RZ-16QAM in 32-Gbaud phase-modulated neighboring channels is better than in 32-Gbaud intensity-modulated neighbors. Moreover, the performance of XPM tolerance for 256-Gbit/s PDM-RZ-16QAM in 32-Gbaud QPSK neighboring channels is the best among other kinds of modulation neighboring formats.

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Feng Tian, Xiaoguang Zhang, Lixia Xi, Andrew J. Stark, Stephen E. Ralph, and Gee-Kung Chang "Investigation of interchannel nonlinear tolerance of 256-Gb/s polarization-division multiplexing return-to-zero 16-ary quadrature amplitude modulation in a hybrid wavelength-division multiplexing transmission system using optical comb," Optical Engineering 53(1), 016111 (20 January 2014). https://doi.org/10.1117/1.OE.53.1.016111

Published: 20 January 2014

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