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+
+//Optoelectronics and Fiber Optics Communication by C.R. Sarkar and D.C. Sarkar
+//Example 6.2
+//OS = Windows 7
+//Scilab version 5.5.2
+
+clc;
+clear;
+
+//given
+rp=3*10^11;//number of incident photon
+re=1.5*10^11;//number of hole-pairs generated
+lamda=0.85*10^-6;//wavength in m
+h=6.62*10^-34;//Plank's constant in SI Unit
+c=3*10^8;//speed of the light in m/s
+e=1.9*10^-19;//electric charge in Coulomb
+eta=re/rp;//quantum efficiency
+c1=(e*lamda)/(h*c);//constant value
+R=eta*c1;//responsivity of the photodiode inA/W
+mprintf("\n Quantum efficiency is= %.2f",eta);
+mprintf("\n Responsivity of the photodiode is= %.2f A/W",R);