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+//Example 9.7
+//Program to determine the optimum avalanche multiplication factor
+
+clear;
+clc ;
+close ;
+
+//Given data
+Rl=10*10^3;                      //Ohms - LOAD RESISTANCE
+T=120;                           //Kelvin - TEMPERATURE
+SNR=35;                          //dB - SIGNAL TO NOISE RATIO
+Fn=1;                            //dB - AMPLIFIER NOISE FIGURE
+B=10*10^6;                       //Hz - POST DETECTION BANDWIDTH
+x=1;
+k=1.381*10^(-23);                //m^2 kg/s - BOLTZMANN's CONSTANT
+e=1.602*10^(-19);                //Coulumbs - CHARGE OF AN ELECTRON
+
+//As Ip=10*Id, Minimum Photo Current
+Ip=(10^(SNR/10)*(12*k*T*B*10^(Fn/10)/Rl)/(4*k*T*10^(Fn/10)/(1.1*e*Rl))^(2/(2+x)))^(3/4);
+ 
+//Optimum avalanche multiplication factor
+Mop=(4*k*T*10^(Fn/10)/(e*Rl/10*1.1*Ip))^(1/(2+x));
+
+//Displaying the Result in Command Window
+printf("\n\n Optimum avalanche multiplication factor, Mop = %0.2f.",Mop);
+\ No newline at end of file