Thanks a lot Jaffar for your kind participation,
I am attaching picture of my setup and also the paper which I am simulating (the setup diagram is at page 4 of research paper), u can check them in below attachment.
Kindly comment where I am getting wrong so that I beocome able to find BER and eye diagram, because still I have not found any solution to this problem.
I have saved your paper but did not studied due to difference in working domain but now I will study them, to get an idea of how u have done calculation of BER and eye diagram in Opti sys for mono and duplet pulses.
I don’t know why your upper shared link is not working, kindly email me your paper at engr.bilalaziz@gmail.com.
Best Regards