In this section, we will create the index file for the fiber we will be using. Open up an RSoft CAD window, and press the New Circuit icon. Set the parameters as shown in Fig. 4 and then press OK.


Figure 4: Global Settings Window

Draw in a straight segment and then right click on it. Set the segment properties to look like that of Fig. 5 and then press OK.


Figure 5: Segment Properties Dialog

Press the Edit Pathways icon, press the New button, and then select the segment. Press the Monitors button and then the New button in the newly opened monitors window. Set the Type to Total Power and then press OK in this window and the next toolbar to go back to the CAD.


Figure 6: Monitors Property Window

Press the Compute Materials Properties icon, and set parameters to look like Fig. 7.


Figure 7: Compute Material Properties Window

We can now view the index profile as shown in Fig. 8.



Figure 8: Index Profile of Fiber

Proceed to save the file to a working directory.