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Diffstat (limited to '3415/CH4/EX4.3/Ex4_3.sce')
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1 files changed, 20 insertions, 0 deletions
diff --git a/3415/CH4/EX4.3/Ex4_3.sce b/3415/CH4/EX4.3/Ex4_3.sce new file mode 100644 index 000000000..e7a0bb003 --- /dev/null +++ b/3415/CH4/EX4.3/Ex4_3.sce @@ -0,0 +1,20 @@ +//fiber optic communications by joseph c. palais
+//example 4.3
+//OS=Windows XP sp3
+//Scilab version 5.4.1
+clc
+clear all
+//given
+lambda=0.82//wavelength in um
+n1=3.6//refractive index of core AlGaAs slab
+n2=3.55//refractive index of cladding
+n3=3.55//refractive index of cladding
+n0=1//refractive index of Air
+
+
+//to find
+NA=sqrt(n1^2-n2^2)//Numerical aperture
+alpha0=asind(NA/n0)//Acceptance angle in degree
+
+mprintf(' Numerical aperture =%f ',NA)
+mprintf(' \nAcceptance angle in range =+%fdegree to -+%fdegree',alpha0,alpha0)
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