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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 24, Iss. 10 — Oct. 1, 2006
  • pp: 3719–3726

Duty-Ratio Control of Nonlinear Phase Noise in Dispersion-Managed WDM Transmissions Using RZ-DPSK Modulation at 10 Gb/s

A. Tonello, S. Wabnitz, and O. Boyraz

Journal of Lightwave Technology, Vol. 24, Issue 10, pp. 3719-3726 (2006)


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Abstract

The authors compare analytical and numerical estimates, showing that the nonlinear phase noise of short optical pulses associated with the coupling between amplified spontaneous emission noise and fiber nonlinearity may be controlled by adjusting the duty cycle of the return-to-zero (RZ) signal modulation format. The impact of this effect in the optimization of the performance of 10-Gb/s dispersion-managed wavelength division multiplexed (WDM) systems using RZ-differential phase-shift keying (DPSK) modulation is discussed. By extensive numerical simulations, it is shown that the transmission quality of ultradense WDM systems using the RZ-DPSK modulation format may be significantly enhanced by optimizing the duty cycle of the RZ pulses.

© 2006 IEEE

Citation
A. Tonello, S. Wabnitz, and O. Boyraz, "Duty-Ratio Control of Nonlinear Phase Noise in Dispersion-Managed WDM Transmissions Using RZ-DPSK Modulation at 10 Gb/s," J. Lightwave Technol. 24, 3719-3726 (2006)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-24-10-3719

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