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Iterative intersymbol interference cancellation in vestigial sideband Nyquist–subcarrier modulation system
Liu, Na Chen, Xue Ju, Cheng Hui, Rongqing
Liu, Na
Chen, Xue
Ju, Cheng
Hui, Rongqing
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Abstract
The intersymbol interference caused by dispersion, chirp, and a vestigial sideband filter in intensity
modulation and a direct detection single carrier system is analyzed theoretically and numerically. An iterative
nonlinear intersymbol interference cancellation technique is proposed and experimentally demonstrated in a 40-
Gbps 16-QAM Mach-Zehnder modulator-based vestigial sideband intensity modulation and direct detection halfcycle
Nyquist–subcarrier modulation system over a 100-km uncompensated standard single-mode fiber transmission
for the first time. The experimental results show that 2.2-dB receiver sensitivity improvement is obtained
at the forward error correction limit by using the iterative technique.
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This is the published version. © 2014 Society of Photo-Optical Instrumentation Engineers
(SPIE)
Date
2014
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Society of Photo-optical Instrumentation Engineers
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Liu N, Chen X, Ju C, Hui R; Iterative intersymbol interference cancellation in vestigial sideband nyquist–subcarrier modulation system. Opt. Eng. 0001;53(11):116109. doi:10.1117/1.OE.53.11.116109.