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// Example 7.10.5 page 7.55
clc;
clear;
lamda=900d-9;
h=6.626d-34; //plank's constant
c=3d8; //speed of light
q=1.6d-19; //charge of electron
eta=65/100; //quantum efficiency
P0=0.5d-6; //incident optical power
Im=10d2; //avalanche gain
R= eta*q*lamda/(h*c); //computing responsivity
Ip=10^8*P0*R; //computing photocurrent
Ip=floor(Ip);
M=Im/Ip; //computing multiplication factor
printf("\nMultiplication factor is %d.",M);
//answer in the book is 42.55 deviation 0.45
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