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+
+//OptoElectronics and Fibre Optics Communication, by C.K Sarkar and B.C Sarkar
+//Example 6.6
+//OS=Windows 10
+////Scilab version Scilab 6.0.0-beta-2(64 bit)
+clc;
+clear;
+
+//given
+lamda=0.8e-6;//wave length of radiation in micrometer
+P=0.60e-6;//optical power in microwatts 
+ita=0.7;//quantum efficiency of a silicon RAPD is 70%
+I=10e-6;//Output of device after avalanche gain in microampere
+e=1.6e-19;//
+h=6.62e-34;//plank's constant in S.I units
+c=3e8;//velocity of light in m/s
+
+R=[(ita*e*lamda)]/[h*c];//Responsivity in A/W
+Ip=P*R;//diode current in microampere
+M=I/Ip;//multiplication factor
+mprintf("\n Responsivity is=%.2f A/W",R);
+mprintf("\n Diode current is=%.2f uA",Ip*1e6);//multiplication by 1e6 to convert the unit from ampers to uA
+mprintf("\n Multiplication factor is=%.2f",M);