Nonlinear compensation and crosstalk suppression for 4 × 160.8Gb/s WDM PDM-QPSK signal with heterodyne detection

Junwen Zhang; Jianjun Yu; Nan Chi; Ze Dong; Xinying Li

doi:10.1364/OE.21.009230

Nonlinear compensation and crosstalk suppression for 4 × 160.8Gb/s WDM PDM-QPSK signal with heterodyne detection

Junwen Zhang, Jianjun Yu, Nan Chi, Ze Dong, Xinying Li

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

We experimentally investigate digital intra-channel nonlinear impairment compensation and inter-channel crosstalk suppression for 4 × 160.8-Gb/s wavelength division multiplexing (WDM) polarization division multiplexing quadrature phase shift keying (PDM-QPSK) transmission over 1300-km single-mode fiber-28 (SMF-28) on a 50-GHz grid with the spectral efficiency of 3.21b/s/Hz, adopting simplified heterodyne coherent detection. By using nonlinear compensation based on DBP with crosstalk suppression based on post filter and maximum likelihood sequence estimation (PF&MLSE), the BER has been improved from 1.0 × 10-3 to 3.5 × 10-4 for 4 × 160.8Gb/s WDM PDM-QPSK with heterodyne detection after 1300km SMF-28 transmission.

Original language	English
Pages (from-to)	9230-9237
Number of pages	8
Journal	Optics Express
Volume	21
Issue number	8
DOIs	https://doi.org/10.1364/OE.21.009230
Publication status	Published - 22 Apr 2013
Externally published	Yes

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abstract = "We experimentally investigate digital intra-channel nonlinear impairment compensation and inter-channel crosstalk suppression for 4 × 160.8-Gb/s wavelength division multiplexing (WDM) polarization division multiplexing quadrature phase shift keying (PDM-QPSK) transmission over 1300-km single-mode fiber-28 (SMF-28) on a 50-GHz grid with the spectral efficiency of 3.21b/s/Hz, adopting simplified heterodyne coherent detection. By using nonlinear compensation based on DBP with crosstalk suppression based on post filter and maximum likelihood sequence estimation (PF&MLSE), the BER has been improved from 1.0 × 10-3 to 3.5 × 10-4 for 4 × 160.8Gb/s WDM PDM-QPSK with heterodyne detection after 1300km SMF-28 transmission.",

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AU - Zhang, Junwen

AU - Yu, Jianjun

AU - Chi, Nan

AU - Dong, Ze

AU - Li, Xinying

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AB - We experimentally investigate digital intra-channel nonlinear impairment compensation and inter-channel crosstalk suppression for 4 × 160.8-Gb/s wavelength division multiplexing (WDM) polarization division multiplexing quadrature phase shift keying (PDM-QPSK) transmission over 1300-km single-mode fiber-28 (SMF-28) on a 50-GHz grid with the spectral efficiency of 3.21b/s/Hz, adopting simplified heterodyne coherent detection. By using nonlinear compensation based on DBP with crosstalk suppression based on post filter and maximum likelihood sequence estimation (PF&MLSE), the BER has been improved from 1.0 × 10-3 to 3.5 × 10-4 for 4 × 160.8Gb/s WDM PDM-QPSK with heterodyne detection after 1300km SMF-28 transmission.

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Nonlinear compensation and crosstalk suppression for 4 × 160.8Gb/s WDM PDM-QPSK signal with heterodyne detection

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