The Effect of Chirping-Induced Pulse Shaping on the Performance of 11 Gbit/s Lightwave Systems

Abstract

This paper investigates the influence of laser chirping, fiber chromatic dispersion, and receiver filtering on the shape of the pulses in 11 Gbit/s lightwave transmission systems. Both NRZ and RZ encoding formats are considered as well as positive and negative dispersion. The results quantify 1) the sensitivity of the system performance to the receiver decision time, 2) the maximum permissible deviation of the laser wavelength from the fiber zero dispersion wavelength, and 3) the improvement in transmission performance offered by pulse compression arising from negative dispersion. © 1989 IEEE