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clear
//
//
//
//Variable declaration
n2=1.47 //refractive index of cladding
n1=1.5 //refractive index of core
//Calculation
phi_c=asin(n2/n1) //critical angle(radian)
phi_c=phi_c*180/%pi //critical angle(degrees)
NA=sqrt(n1**2-n2**2) //numerical aperture
phi_max=asin(NA) //acceptance angle(radian)
phi_max=phi_max*180/%pi //acceptance angle(degrees)
//Result
printf("\n critical angle is %0.1f degrees",phi_c)
printf("\n numerical aperture is %0.1f ",NA)
printf("\n acceptance angle is %0.1f degrees",phi_max)
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