Asif R, Lin CY, Holtmannspötter M, Schmauß B (2013)
Publication Language: English
Publication Status: Published
Publication Type: Journal article
Publication year: 2013
Publisher: Optical Society of America
Book Volume: 21
Pages Range: 781-8
Journal Issue: 1
DOI: 10.1364/OE.21.000781
We numerically report on the complexity reduction of digital backward propagation (DBP) by utilizing correlative encoded transmission (dual-polarization quadrature duobinary) at a bit-rate of 112Gbit/s over 1640km fiber link. The single channel (N=1) and multi-channel (N=10) transmission performances are compared in this paper. In case of multi-channel system, 10 transmitters are multiplexed with 25GHz channel spacing. The fiber link consists of Large A(eff) Pure-Silica core fiber with 20 spans of 82km each. No in-line optical dispersion compensator is employed in the link. The system performances are evaluated by monitoring the bit-error-ratio and the forward error correction limit corresponds to bit-error-ratio of 3.8×10(-3). The DBP algorithm is implemented after the coherent detection and is based on the logarithmic step-size based split-step Fourier method. The results depict that dual-polarization quadrature duobinary can be used to transmit 112Gbit/s signals with an spectral efficiency of 4-b/s/Hz, but at the same time has a higher tolerance to nonlinear transmission impairments. By utilizing dual-polarization quadrature duobinary modulation, comparative system performance with respect to dual-polarization 16-quadrature amplitude modulation transmission can be achieved with 60% less computations and with a step-size of 205km.
APA:
Asif, R., Lin, C.-Y., Holtmannspötter, M., & Schmauß, B. (2013). Evaluation of correlative coding and DP-16QAM n-channel 112Gbit/s coherent transmission: digital non-linear compensation perspective. Optics Express, 21(1), 781-8. https://dx.doi.org/10.1364/OE.21.000781
MLA:
Asif, Rameez, et al. "Evaluation of correlative coding and DP-16QAM n-channel 112Gbit/s coherent transmission: digital non-linear compensation perspective." Optics Express 21.1 (2013): 781-8.
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