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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 8 — Apr. 11, 2011
  • pp: 7756–7768

Analytical estimation of phase noise influence in coherent transmission system with digital dispersion equalization

Tianhua Xu, Gunnar Jacobsen, Sergei Popov, Jie Li, Ari T. Friberg, and Yimo Zhang  »View Author Affiliations

Optics Express, Vol. 19, Issue 8, pp. 7756-7768 (2011)

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We present a novel investigation on the enhancement of phase noise in coherent optical transmission system due to electronic chromatic dispersion compensation. Two types of equalizers, including a time domain fiber dispersion finite impulse response (FD-FIR) filter and a frequency domain blind look-up (BLU) filter are applied to mitigate the chromatic dispersion in a 112-Gbit/s polarization division multiplexed quadrature phase shift keying (PDM-QPSK) transmission system. The bit-error-rate (BER) floor in phase estimation using an optimized one-tap normalized least-mean-square (NLMS) filter, and considering the equalization enhanced phase noise (EEPN) is evaluated analytically including the correlation effects. The numerical simulations are implemented and compared with the performance of differential QPSK demodulation system.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: March 1, 2011
Revised Manuscript: March 31, 2011
Manuscript Accepted: March 31, 2011
Published: April 6, 2011

Tianhua Xu, Gunnar Jacobsen, Sergei Popov, Jie Li, Ari T. Friberg, and Yimo Zhang, "Analytical estimation of phase noise influence in coherent transmission system with digital dispersion equalization," Opt. Express 19, 7756-7768 (2011)

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