1 files changed, 27 insertions, 0 deletions
diff --git a/1655/CH2/EX2.7.10/Example_2_7_10.sce b/1655/CH2/EX2.7.10/Example_2_7_10.sce
new file mode 100755
index 000000000..a4bcb4011
--- /dev/null
+++ b/1655/CH2/EX2.7.10/Example_2_7_10.sce
@@ -0,0 +1,27 @@
+// Example 2.7.10  page 2.29
+
+clc;
+clear;
+
+n1=1.48;       //refractive index of core
+n2=1.46;       //refractive index of cladding
+lamda1=1320d-9;       //Wavelength
+lamda2=1550d-9;       //Wavelength
+a=25d-6;        //radius of core
+
+NA=sqrt(n1^2 - n2^2);       //computing Numerical aperture
+v1=2*%pi*a*NA/lamda1;       //computing normalized frequency
+v1=round(v1);
+M1=v1^2/2;      //computing number of guided modes
+M1=round(M1);
+v2=2*%pi*a*NA/lamda2;
+M2=v2^2/2;
+M2=round(M2);
+lamda1=lamda1*10^9;
+lamda2=lamda2*10^9;
+
+printf("\nfor %d nm, normalized frequency = %d, Guided modes = %d.",lamda1,v1,M1);
+printf("\nfor %d nm, normalized frequency = %.2f, Guided modes = %d.",lamda2,v2,M2);
+
+//answer in the book,
+//for 1550 nm, normalized frequency = 24.69(deviation of 0.08), Guided modes = 305(deviation of 3)