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Lasers, Fiber Optics, and Communications

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

[+] Author Affiliations
Feng Tian

Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, P.O. Box 72 (BUPT), Beijing 100876, China

Xiaoguang Zhang

Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, P.O. Box 72 (BUPT), Beijing 100876, China

Lixia Xi

Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, P.O. Box 72 (BUPT), Beijing 100876, China

Andy Stark

Georgia Institute of Technology, School of Electrical and Computer Engineering, Atlanta 30332, Georgia

Stephen E. Ralph

Georgia Institute of Technology, School of Electrical and Computer Engineering, Atlanta 30332, Georgia

Gee-kung Chang

Georgia Institute of Technology, School of Electrical and Computer Engineering, Atlanta 30332, Georgia

Opt. Eng. 53(1), 016111 (Jan 20, 2014). doi:10.1117/1.OE.53.1.016111
History: Received October 8, 2013; Revised December 4, 2013; Accepted December 11, 2013
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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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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Feng Tian ; Xiaoguang Zhang ; Lixia Xi ; Andy Stark ; Stephen E. Ralph, et al.
"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", Opt. Eng. 53(1), 016111 (Jan 20, 2014). ; http://dx.doi.org/10.1117/1.OE.53.1.016111


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