LIMITATIONS IN 10 GB S WDM OPTICAL-FIBER TRANSMISSION WHEN USING A VARIETY OF FIBER TYPES TO MANAGE DISPERSION AND NONLINEARITIES/

We analyze the system limitations of WDM transmission when using vario us types of optical fiber to manage dispersion and nonlinearities. in our model, from two to eight 10 Gb/s WDM channels are transmitted thro ugh a cascade of EDFA's experiencing dispersion, stimulated Raman scat tering, and self- and cross-phase modulation, The fiber types modeled include: conventional single-mode fiber, dispersion-shifted fiber, and dispersion-compensating fiber. These fibers have different dispersion spectral profiles and are combined to manage dispersion to produce a total zero dispersion for a certain fiber span while eliminating four- wave mixing, We find that a system using dispersion-shifted fiber and conventional single-mode fiber exhibits the best performance, with the combination of dispersion and cross-phase modulation as the dominant effects. Furthermore, conventional single-mode fiber combined with dis persion-compensating fiber system exhibits the worst performance, with the combination of dispersion and self-phase modulation as the domina nt effects.