Hello Lavanya,
I think you have to give proper wavelength for CW laser, WDM analyzer and pump laser. I saw the example of optiwave tutorials andgave the wavelength range. CW laser wavelength 1520nm to 1620nm, Pump laser 1405nm to 1510nm, WDM analyzer 1518nm to 1625nm.
To look at the output, calculate the file and then press option add report in main layout window. Then new report window opens then, in insert option click opti2D graph.after that draw in the screen. Now you got the screen for your output.Then left side, in wdm analyzer click results option, you can see all the simulations. Come down, in that click total gain drag it to the graph and after that click wavelength at maximum gain and drag it to the screen. Now you can see the output graph.
I attached a file and picture.
Regards,
Sasha