1 files changed, 24 insertions, 0 deletions
diff --git a/401/CH3/EX3.9/Example3_9.sce b/401/CH3/EX3.9/Example3_9.sce
new file mode 100755
index 000000000..e97565ee9
--- /dev/null
+++ b/401/CH3/EX3.9/Example3_9.sce
@@ -0,0 +1,24 @@
+//Example 3.9
+//Program to compare rms pulse broadening per kilometer due to 
+//intermodal dispersion for multimode step index fiber with that of 
+//near parabolic graded index fiber 
+
+clear;
+clc ;
+close ;
+
+//Given data
+delta=0.01;      //*100 percent - RELATIVE REFRACTIVE INDEX DIFFERENCE
+L=1;             //km - LENGTH OF OPTICAL LINK
+n1=1.5;          //CORE REFRACTIVE INDEX 
+c=2.998*10^8;    //m/s - VELOCITY OF LIGHT IN VACCUM
+
+//RMS pulse broadening /km due to intermodal dispersion for MMSI Fiber
+sigma_s=L*n1*delta/(2*sqrt(3)*c);
+
+//RMS pulse broadening /km for near parabolic graded index fiber
+sigma_g=L*n1*delta^2/(20*sqrt(3)*c);
+
+//Displaying the Results in Command Window
+printf("\n\n\t RMS pulse broadening per kilometer due to intermodal dispersion for MMSI Fiber is %0.1f ns/km.",sigma_s/10^(-12));
+printf("\n\n\t RMS pulse broadening per kilometer for near parabolic graded index fiber is %0.1f ps/km.",sigma_g/10^(-15));
+\ No newline at end of file