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Journal article

Kerr Nonlinearity Mitigation: Mid-Link Spectral Inversion Versus Digital Backpropagation in 5×28-GBd PDM 16-QAM Signal Transmission

By Sackey, Isaac1; Da Ros, Francesco2,3; Karl Fischer, Johannes4; Richter, Thomas4; Jazayerifar, Mahmoud1; Peucheret, Christophe5; Petermann, Klaus1; Schubert, Colja4

From

Technische Universität Berlin1

Department of Photonics Engineering, Technical University of Denmark2

Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark3

Fraunhofer-Gesellschaft4

Université de Rennes5

We experimentally investigate Kerr nonlinearity mitigation of a 28-GBd polarization-multiplexed 16-QAM signal in a five-channel 50-GHz spaced wavelength-division multiplexing (WDM) system. Optical phase conjugation (OPC) employing the mid-link spectral inversion technique is implemented by using a dual-pump polarization-independent fiber-optic parametric amplifier and compared to digital backpropagation (DBP) compensation over up to 800-km in a dispersion-managed link.

In the single-channel case, the use of the DBP algorithm outperformed the OPC with a Q-factor improvement of 0.9 dB after 800-km transmission. However, signal transmission was not possible with DBP in the WDM scenario over the same link length while it was enabled by the OPC with a maximum Q-factor of 8.6 dB.

Language: English
Publisher: IEEE
Year: 2015
Pages: 1821-1827
ISSN: 15582213 and 07338724
Types: Journal article
DOI: 10.1109/JLT.2015.2393152
ORCIDs: Da Ros, Francesco
Keywords

Communication, Networking and Broadcast Technologies Erbium-doped fiber amplifiers Optical fiber amplifiers Optical fiber communication Optical fiber dispersion Optical fiber polarization Photonics and Electrooptics Q-factor Wavelength division multiplexing

Other keywords

Coherent detection digital backpropagation (DBP) fiber nonlinearity optical fiber communication optical phase conjugation (OPC) quadrature amplitude modulation (QAM) wavelength-division multiplexing (WDM)

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