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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 21 — Oct. 16, 2006
  • pp: 9584–9593

Convergence of phase noise in DPSK transmission systems by novel phase noise averagers

Chia Chien Wei and Jason (Jyehong) Chen  »View Author Affiliations

Optics Express, Vol. 14, Issue 21, pp. 9584-9593 (2006)

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This investigation proposes a novel all-optical phase noise averager to reduce residual phase noise in the differential phase-shift keying (DPSK) transmission system with phase-preserving amplitude regenerators. The proposed phase noise averager is based on a phase-sensitive amplifier but does not require an extra phase-locking optical pump beam. It can increase the correlation between the phase noises of neighboring bits and greatly reduce the differential phase noise in the transmission system. Independently of the cascaded spans, analytical analysis demonstrates that, in the DPSK system with repeated averagers, the total differential phase noise will be less than that before the first averager. Theoretical analysis and numerical simulation are carried out and confirm the significant improvement of DPSK signals using the proposed novel phase noise averagers.

© 2006 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.5060) Fiber optics and optical communications : Phase modulation
(190.3270) Nonlinear optics : Kerr effect
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: July 11, 2006
Revised Manuscript: September 13, 2006
Manuscript Accepted: September 21, 2006
Published: October 16, 2006

Chia Chien Wei and Jason (Jyehong) Chen, "Convergence of phase noise in DPSK transmission systems by novel phase noise averagers," Opt. Express 14, 9584-9593 (2006)

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