Comparative analysis of XPM induced crosstalk due to 4OD coefficient in SCM-WDM link

In this article, we have presented a comparative analysis of XPM crosstalk due to 4OD parameter in SCM-WDM link. Non-linear Schro & uml;dinger equation (NLSE) and coupled equations have been used to evaluate performance of the communication link. Results obtained using both equations have been compared and it has been concluded that 4OD parameter contributes significant amount of XPM crosstalk. It is deduced that XPM crosstalk due to 4OD parameter grows with increase in modulation frequency. XPM crosstalk due to 4OD parameter lies in the range of -180 dB to -105 dB employing coupled equations whereas it varies between -270 dB and -142 dB employing NLSE when modulation frequency increases from 0.2 to 5 GHz. XPM crosstalk lies between -209 dB and -158 dB employing coupled equations whereas it increases from -239 dB to -172 dB employing NLSE as transmission length increased from 1 to 50 km. XPM crosstalk varies from -175 dB to -145 dB using coupled equations while it lies in the range of -210 dB to -156 dB using NLSE when optical power varies from 0.1 to 2 mW.