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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 19 — Oct. 1, 2007
  • pp: 2786–2788

Pump–probe analysis of the cross-phase modulation degradation induced by 10 Gbit s amplitude-shift-keyed signals on 40 Gbit s DPSK signals

Ruben S. Luís, Benoît Clouet, António Teixeira, and Paulo Monteiro  »View Author Affiliations

Optics Letters, Vol. 32, Issue 19, pp. 2786-2788 (2007)

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A study of the cross-phase modulation (XPM) degradation of differential-phase-shift-keyed (DPSK) signals due to amplitude-shift-keyed signals is performed using pump–probe simulation. Approximate expressions for the contributions of the XPM-induced intensity and phase modulation to the electrical current fluctuations at the differential-phase-exchange-keyed receiver are presented. It is shown that, unlike prior works and similar to intensity-modulated signals, the contribution of XPM-induced intensity modulation is dominant in systems using standard fiber or high residual dispersion.

© 2007 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Diffraction and Gratings

Original Manuscript: April 23, 2007
Revised Manuscript: August 9, 2007
Manuscript Accepted: August 17, 2007
Published: September 18, 2007

Ruben S. Luís, Benoît Clouet, António Teixeira, and Paulo Monteiro, "Pump-probe analysis of the cross-phase modulation degradation induced by 10 Gbit/s amplitude-shift-keyed signals on 40 Gbit/s DPSK signals," Opt. Lett. 32, 2786-2788 (2007)

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