Simulation of Pre & Post Compensation Techniques for 16 Channels DWDM Optical Network using CSRZ & DRZ Formats

Volume 3, Issue 4, April 2014 Page 346 Abstract Dense Wavelength Division Multiplexing (DWDM) is a promising technique which can meet the increasing demand for communication bandwidth. It multiplexed all the channel signals onto single fiber thus increases the capacity of existing fiber. It is a perfect substitute for long haul networks. The major problem that DWDM technique suffered is dispersion which results in degradation of system performance and causes broadening of light pulses. In this paper a proposed setup of long haul 16 channels DWDM network have been simulated using CSRZ and DRZ modulation formats. Two dispersion compensation techniques i.e. Pre and Post is used in the system to overcome the dispersion problem and the dispersion of SMF is completely compensated using Dispersion Compensated Fiber (DCF) which helped in achieving maximum transmission distance up to 1200 km.