Abstract

The implications that the nonideal characteristics of a dispersion compensating grating have on system performance are determined, for the most part, by the group delay ripple (GDR) of the grating response over the modulated signal bandwidth. Since the GDR typically exhibits an irregular variation with wavelength that has periodic features, it is convenient to use a sinusoidal variation to assess the implications on system performance. The portion of the grating bandwidth occupied by the modulated optical signal is determined by the carrier signal wavelength, bit rate, modulation format, and modulator chirp. The implications of modulator chirp on the performance of 10-Gb/s dispersion compensated systems are considered. Using a LiNbO3 Mach-Zehnder modulator, an electroabsorption modulator, and a multiple quantum-well Mach-Zehnder modulator with distinct chirp properties,the results demonstrate that to accurately assess the implications of GDR,the properties of the modulator chirp must be considered. In particular, results for chirp-free optical signals underestimate the implications of the GDR on system performance.

[IEEE ]

PDF Article

References

  • View by:
  • |

  1. S. Jamal and J. C. Cartledge, "Variation in the performance of multi-span 10 Gb/s systems due to the group delay ripple of dispersion compensating fiber Bragg gratings", J. Lightwave Technol., vol. 20, pp. 28-35, 2002.
  2. J. C. Cartledge and B. Christensen, "Optimum operating point of electroabsorption modulators for 10 Gb/s transmission", J. Lightwave Technol., vol. 16, pp. 349-357, 1998.
  3. J. C. Cartledge, "Optimizing the bias and modulation voltages of MQW Mach-Zehnder modulators for 10 Gb/s transmission on nondispersion shifted fiber", J. Lightwave Technol., vol. 17, pp. 1142-1151, 1999.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.