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diff --git a/3638/CH11/EX11.5/Ex11_5.sce b/3638/CH11/EX11.5/Ex11_5.sce new file mode 100644 index 000000000..20984b125 --- /dev/null +++ b/3638/CH11/EX11.5/Ex11_5.sce @@ -0,0 +1,13 @@ +//Introduction to Fiber Optics by A. Ghatak and K. Thyagarajan, Cambridge, New Delhi, 1999
+//Example 11.5
+//OS=Windows XP sp3
+//Scilab version 5.5.2
+clc;
+clear;
+//given
+R1=0.3;//reflection coefficient of mirror 1
+R2=0.3;//reflection coefficient of mirror 2
+l=500e-4;//Distance between the two mirrors in cm
+alpha=5e1;//average loss coefficient per unit length of resonator in cm^(-1)
+Vth=alpha-log(R1*R2)/(2*l);//Corresponding threshold gain coefficient in cm^(-1)
+mprintf("\n The threshold gain coefficient = %e cm^-1",Vth);//The answers vary due to round off error
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