Design of point to point metro DWDM network and its performance evaluation

Dense Wavelength Division Multiplexing is a best technology to increase channel capacity and it support for growing bandwidth demands on optical fiber communication. In this technology the optical signal will carry multiple streams of information, each stream as its own unique wavelength. The wavelength effective for DWDM system will be from 1525nm to 1565nm in C Band and from 1570nm to 1610nm in L Band. In this paper we use single mode fiber for length of 110 km at 1550nm to decrease dispersion in signal. The DWDM system analysis is performed using optisystem with flow rate of 10 Gb/s per channel and carried out simulation, EDFA amplifier is used to achieve signal with improved Q-Factor and BER.