Dear Nawroz,
please refer to the example (Lesson 4 Parameter Sweeps – BER x Input power.osd) located at the following link for guidance. Meanwhile, I calculate the project and I am attaching two images to show you the setup and results. You need to drag the parameter from the results of the component in the project browser to the proper axis.
C:\Users\USER NAME\Documents\OptiSystem 17.1 Samples\Introductory tutorials
Regards,
Ahmad