Analysis of chromatic dispersion compensation and carrier phase recovery in long-haul optical transmission system influenced by equalization enhanced phase noise

The performance of long-haul coherent optical fiber transmission system is significantly affected by the equalization enhanced phase noise (EEPN), due to the interaction between the electronic dispersion compensation (EDC) and the laser phase noise. In this paper, we present a comprehensive study on...

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Bibliographic Details
Published in:Optik (Stuttgart) Vol. 138; pp. 494 - 508
Main Authors: Xu, Tianhua, Jacobsen, Gunnar, Popov, Sergei, Li, Jie, Sergeyev, Sergey, Friberg, Ari T., Liu, Tiegen, Zhang, Yimo
Format: Journal Article
Language:English
Published: Elsevier GmbH 01.06.2017
Subjects:
Adaptive optics
Carrier phase recovery
Chromatic dispersion
Chromatic dispersion compensation
Coherent optical detection
Dispersion compensation
Dual polarization quadrature phase-shift keying (DP-QPSK)
Electronic dispersion compensation
Equalization enhanced phase noise
Equalization enhanced phase noises (EEPN)
Equalizers
Frequency domain analysis
Least squares approximations
Light transmission
Modulation
Normalized least mean square algorithms
Numerical methods
Optical dispersion compensation
Optical fibers
Optical systems
Phase noise
Phase shift
Phase shift keying
Quadrature amplitude modulation
Quadrature phase shift keying
Recovery
Time domain analysis
Transmissions
Viterbi algorithm
Coherent optical detection
Chromatic dispersion compensation
Phase shift keying
Quadrature amplitude modulation
Carrier phase recovery
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Equalization enhanced phase noise
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ISSN:0030-4026, 1618-1336, 1618-1336
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Summary:The performance of long-haul coherent optical fiber transmission system is significantly affected by the equalization enhanced phase noise (EEPN), due to the interaction between the electronic dispersion compensation (EDC) and the laser phase noise. In this paper, we present a comprehensive study on different chromatic dispersion (CD) compensation and carrier phase recovery (CPR) approaches, in the n-level phase shift keying (n-PSK) and the n-level quadrature amplitude modulation (n-QAM) coherent optical transmission systems, considering the impacts of EEPN. Four CD compensation methods are considered: the time-domain equalization (TDE), the frequency-domain equalization (FDE), the least mean square (LMS) adaptive equalization are applied for EDC, and the dispersion compensating fiber (DCF) is employed for optical dispersion compensation (ODC). Meanwhile, three carrier phase recovery methods are also involved: a one-tap normalized least mean square (NLMS) algorithm, a block-wise average (BWA) algorithm, and a Viterbi-Viterbi (VV) algorithm. Numerical simulations have been carried out in a 28-Gbaud dual-polarization quadrature phase shift keying (DP-QPSK) coherent transmission system, and the results indicate that the origin of EEPN depends on the choice of chromatic dispersion compensation methods, and the effects of EEPN also behave moderately different in accordance to different carrier phase recovery scenarios.
ISSN:0030-4026
1618-1336
1618-1336
DOI:10.1016/j.ijleo.2017.03.024