Subcarrier to subcarrier intermixing interference cancellation in vestigial-sideband orthogonal frequency division multiplexing system

Cheng Ju; Xue Chen; Na Liu; Liqian Wang

doi:10.1117/1.OE.53.9.096108

15 September 2014 Subcarrier to subcarrier intermixing interference cancellation in vestigial-sideband orthogonal frequency division multiplexing system

Cheng Ju, Xue Chen, Na Liu, Liqian Wang

Author Affiliations +

Optical Engineering, Vol. 53, Issue 9, 096108 (September 2014). https://doi.org/10.1117/1.OE.53.9.096108

Abstract

The presence of vestigial-sideband optical filter, dispersion and chirp of modulator increases subcarrier to subcarrier intermixing interference (SSII), which significantly restricts transmission performance. For the first time, the iterative interference cancellation method is introduced to calculate and eliminate SSII. Furthermore, we successfully demonstrate a 40-Gbps, 16-QAM, dual drive Mach-Zehnder modulator (MZM)-based system transmission through 100-km uncompensated standard single-mode fiber. The impact of chirp on iterative algorithm is also experimentally evaluated by setting different optical phase modulation amplitudes on the two arms of the dual drive MZM.

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Cheng Ju, Xue Chen, Na Liu, and Liqian Wang "Subcarrier to subcarrier intermixing interference cancellation in vestigial-sideband orthogonal frequency division multiplexing system," Optical Engineering 53(9), 096108 (15 September 2014). https://doi.org/10.1117/1.OE.53.9.096108

Published: 15 September 2014

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