dear sir D.Marek
thanks a lot for your kind help and response
my system has been working but i am not getting the desired result i.e i am not getting the monocycle pulses rather i am getting only chirped pulses(attached the screen shot of the optical time domain visualizers).i am attaching the research paper which i need to implement and project file also in opti sys v.7.
please comment why i am not getting monocycles and where is the mistake.
your help in this will be highly obliged as it will help me greatly.