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Proceedings Paper

Phase noise mitigation in coherent transmission system using a pilot carrier
Author(s): Tianhua Xu; Gunnar Jacobsen; Sergei Popov; Jie Li; Ari T. Friberg; Yimo Zhang
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Paper Abstract

In this paper, we investigate the phase noise elimination employing an optical pilot carrier in the high speed coherent transmission system considering the equalization enhanced phase noise (EEPN). The numerical simulations are performed in a 28-Gsymbol/s quadrature phase shift keying (QPSK) coherent system with a polarization multiplexed pilot carrier. The carrier phase estimation is implemented by the one-tap normalized least mean square (NLMS) filter and the differential phase detection, respectively. Simulation results demonstrate that the application of the optical pilot carrier is very effective for the intrinsic laser phase noise cancellation, while is less efficient for the EEPN mitigation.

Paper Details

Date Published: 14 December 2011
PDF: 6 pages
Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 83090Z (14 December 2011); doi: 10.1117/12.904038
Show Author Affiliations
Tianhua Xu, Royal Institute of Technology (Sweden)
Acreo AB (Sweden)
Tianjin Univ. (China)
Gunnar Jacobsen, Acreo AB (Sweden)
Sergei Popov, Royal Institute of Technology (Sweden)
Jie Li, Acreo AB (Sweden)
Ari T. Friberg, Royal Institute of Technology (Sweden)
Yimo Zhang, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 8309:
Optical Transmission Systems, Subsystems, and Technologies IX
Xiang Liu, Editor(s)

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