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// Example 5.26
// Computation of (a) wavelength (b) power and (c) resposivity
// page no 488
clc;
clear;
close;
//Given data
e=0.7; // Quantum efficiency
c=3*10^8; // Speed of light
h=6.62*10^-34 // Planck constant
E=1.5*10^-19; // Energy of photons
e1=1.6*10^-19; // Electronic charge
I=4*10^-6; // Diode photocurrent
// (a) Wavelength of operation
lambda=h*c/E;
// (b) Responsivity
R=e*(lambda*e1)/(h*c); //
// (c) Incident optical power
p=I/R; //power
//Display result on command window
printf("\n Wavelength of operation (micrometer)= %0.3f ",lambda*10^6);
printf("\n Responsivity R (A/W) = %0.3f ",R);
printf("\n output power P (microwWatt) = %0.3f ",p*10^6);
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