Research on Mixed Data Rate and Format Transmission in WDM Networks
Abstract: To meet the growing
data traffic demands in the telecommunication applications, the number of
wavelengths is to be increased in a fiber-optic backbone of the
telecommunication network. The exponential growth of internet services,
transmission capacity is a tremendous challenge to networks. Nowadays, 10 Gb/s transmission systems are
being used for commercial applications.
At the same time, the non-linear effects such as FWM, SRS, XPM, SPM, and
Dispersion are also increased, when the number of wavelengths passing through
the single fiber is increased. The analysis of efficient modulation formats
for DWDM system and long-haul transmission system, we go for
various modulations for DWDM system. The maximum data rate for NRZ-OOK
modulation format is 10 Gb/s. For RZ-OOK the maximum rate is 50 Gb/s. Since RZ-OOK modulation uses twice the band
width when compared to NRZ-OOK modulation. The modulation format is partially
upgraded from OOK to PSK, the influence of OOK signals on the updated PSK
signals must be considered when using multi-channel wavelength conversion. The
PSK modulation is also analyzed.
Author: Li Li Li Li, Wei
Jian-yi, Zhang Xiu-tai, Li Hong-an
Journal Code: jptkomputergg130031
