Welcome Gurpreet,
It is very obvious for me to attach the file but i would strongly recommend you to understand the concept and use it in your system by doing a proper study of the papers i have attached for the OCDMA security enhancement. All the anti-jamming and eavesdropping protection in the papers has been done using SOA as a wave length converter. You can implement save setups using EAM because in SOA FWM affect is prominent and to initiate it author had to use additional pumps. By using EAM requirements of these additional pumps maybe be eliminated, also you can compare the performance of two systems. Thank you and best of luck.