Modulator chirp and fiber nonlinearities are two important effects that influence the transmission performance of WDM systems based on nondispersion shifted fiber. To avoid attenuation limited performance for 10 Gb/s signals and hence achieve dispersion limited transmission, either an optical booster amplifier or optical preamplifier is typically required. Either a semiconductor optical amplifier or erbium doped fiber amplifier can be used at the transmitter with the former offering the potential advantage of photonic integration with a modulator and laser
Published in:
Lasers and Electro-Optics Society Annual Meeting, 1998. LEOS '98. IEEE
(Volume:1
)
Date of Conference: 1-4 Dec 1998