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// Example 2.8
// Calculation of threshold power of stimulated Brillouin scattering and Raman Scattering
// Page no 52
clc;
clear;
close;
// Given data
A=0.5; // Attenuation
d=5; // Core diameter
lambda=1.3; // Operating wavelength
v=0.7; // Bandwith of laser diode
// Threshold power of stimulated Brillouin scattering
Pb=4.4*10^-3*d^2*lambda^2*A*v;
Pb=Pb*10^3;
//Threshold power stimulated Raman Scattering
Pr=5.9*10^-2*d^2*lambda*A;
//Display result on command window
printf("\n Threshold power of stimulated Brillouin scattering (in mW) = %0.2f ",Pb);
printf("\n Threshold power stimulated Raman Scattering (in W)= %0.2f",Pr);
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