TY - GEN
T1 - Scanning-Based Chromatic Dispersion Estimation in Mode-Multiplexed Optical Systems
AU - Ospina, Ruby S. B.
AU - Dos Santos, Lailson F.
AU - Mello, Darli A. A.
AU - Ferreira, Filipe M.
N1 - Funding: FAPESP under the processes 2017/25537-8, 2015/24341-7 and 2015/ 24517-8 and by CAPES.
PY - 2019/9/19
Y1 - 2019/9/19
N2 - Mode-multiplexed coherent optical systems emerge as an alternative to overcome the capacity limits of current optical communication systems. As in single-mode systems, mode-multiplexed transmission experiences accumulated chromatic dispersion that must be estimated and compensated for by digital signal processing. Although scanning-based methods are widely used to estimate chromatic dispersion in single-mode optical systems, their performance in mode-multiplexed systems has not been evaluated. In this paper, we study three scanning-based chromatic dispersion estimation techniques in the scope of mode-multiplexed optical systems. The results indicate that the algorithms loose accuracy for high levels of crosstalk and ASE noise. However, we show that the estimation criterion based on the delay-tap sampling method can be properly modified to significantly improve the estimation performance even in the worst scenario of crosstalk evaluated.
AB - Mode-multiplexed coherent optical systems emerge as an alternative to overcome the capacity limits of current optical communication systems. As in single-mode systems, mode-multiplexed transmission experiences accumulated chromatic dispersion that must be estimated and compensated for by digital signal processing. Although scanning-based methods are widely used to estimate chromatic dispersion in single-mode optical systems, their performance in mode-multiplexed systems has not been evaluated. In this paper, we study three scanning-based chromatic dispersion estimation techniques in the scope of mode-multiplexed optical systems. The results indicate that the algorithms loose accuracy for high levels of crosstalk and ASE noise. However, we show that the estimation criterion based on the delay-tap sampling method can be properly modified to significantly improve the estimation performance even in the worst scenario of crosstalk evaluated.
KW - Chromatic dispersion
KW - Mode-multiplexed
KW - Scanning-based estimation
UR - https://ieeexplore.ieee.org/document/8840424/
UR - http://www.scopus.com/inward/record.url?scp=85073076570&partnerID=8YFLogxK
U2 - 10.1109/ICTON.2019.8840424
DO - 10.1109/ICTON.2019.8840424
M3 - Conference publication
SN - 978-1-7281-2780-4
VL - 2019-July
T3 - 2019 21st International Conference on Transparent Optical Networks (ICTON)
BT - 21st International Conference on Transparent Optical Networks, ICTON 2019
PB - IEEE
T2 - 2019 21st International Conference on Transparent Optical Networks (ICTON)
Y2 - 9 July 2019 through 13 July 2019
ER -