# In the toolbar there is optical_Fiber avaiable. # Drag & Drop the optical_Fiber to the experiment area to place the optical_Fiber # Click on the Object to place the laser light in experimental area # You can add only one optical_Fiber # You can Drag the optical_Fiber to get ray diagram # Double click on the optical_Fiber to remove the optical_Fiber from the experimental area. # Here the arrow is consider as the laser light source (Arrow)