In this paper, a simulative experimental set up for OWDM communication system consist of two 4-optical channels with channel spacing of 0.1THz interconnected by means of a 2x2 OXC (an OXC with 2 input ports and 2 output ports) to route the data with less delay and high throughput is analyzed under the impact of laser line-width and modulator's chirp over the crosstalk introduced in OWDM system. Our results show that by using OXC, we can minimize the power degradation introduced in OWDM system due to crosstalk. In addition, the impact of laser line-width and modulator's chirp can not be ignored in reducing the crosstalk while dealing with long haul optical communication systems. The OWDM system is also reported under the influence of crosstalk at different bit rate varying from 1Gbps to 10Gbps in this work.

In this work, an effort has been attempted for the comprehensive theoretical analysis to evaluate the impact of higher order dispersion (HOD) coefficients on non-linear crosstalk in SCM-WDM communication systems. The results are obtained to compute the interchannel crosstalk due to XPM fiber nonlinearity under the individual influence of 2OD-, 3OD-, 4OD-and 5OD-coefficient at different modulation frequencies. The results are reported at varied values of optical span and input channel power, as these both parameters enhance the amount of crosstalk due to fiber nonlinearity in the SCM-WDM systems. This work is also carried out by taking into consideration of the different values of modulation index and walk-off parameter.