To achieve a high data transmission bit rate in the telecommunication field is the goal of wavelength division multiplexing
technology. The maximum bit rates are determined by numerous factors, including the signal modulation rate, the transmission
bandwidth through the transmission media, and the response time of the optoelectronic devices. In ultra multiplexing
communication system is simply one part of the transmission regime. Therefore, the total pulse broadening due to the first order
dispersion in standard single mode fiber (SSMF) that limits the bit rates in system based multiplexing communication system can
be expressed as