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diff --git a/3638/CH8/EX8.8/Ex8_8.sce b/3638/CH8/EX8.8/Ex8_8.sce new file mode 100644 index 000000000..0bdab9bd1 --- /dev/null +++ b/3638/CH8/EX8.8/Ex8_8.sce @@ -0,0 +1,14 @@ +//Introduction to Fiber Optics by A. Ghatak and K. Thyagarajan, Cambridge, New Delhi, 1999
+//Example 8.8
+//OS=Windows XP sp3
+//Scilab version 5.5.2
+clc;
+clear;
+//given
+lambda0=1.3e-6;//operating wavelength of single mode fiber in m
+thetah=2.74;//angle corresponding to 3 dB point in degrees
+k0=2*%pi/lambda0;//free space wave number in rad/m
+omega=sqrt(2*log(2))/(k0*sind(2.74));//corresponding spot size of fiber in m
+d=2*omega;//corresponding value of Gaussian mode field diameter in m
+mprintf("Corresponding mode field diameter=%f um",d/1e-6)//division by 1e-6 to convert in um
+//The answer provided in the textbook is wrong
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