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+//Optoelectronics - An Introduction, 2nd Edition by J. Wilson and J.F.B. Hawkes
+//Example 7.7
+//OS=Windows XP sp3
+//Scilab version 5.5.2
+clc;
+clear;
+
+//given
+A=100e-6*100e-6;//Junction area of the photodiode in m^2
+Epsilonr=12;//Relative permittivity of InGaAs
+Epsilon0=8.84e-12;//Permittivity of free space in SI Units
+w=2e-6;//Thickness of the i region
+Rl=50;//Load resistance in Ohms
+vsat=1e5;//Saturation velocity of electrons in InGaAs
+
+Tdrift=w/vsat;//Transit time of electrons through the depletion region in s
+mprintf("\n Tdrift = %.1e s",Tdrift);
+
+Cj=A*Epsilon0*Epsilonr/w;//Diode capacitance in F
+mprintf("\n Cj = %.1e F",Cj);
+
+Trc=Rl*Cj;//Response time associated with the detector RC network in s
+mprintf("\n Trc = %.1e s",Trc);//The answers vary due to round off error
+
+T=sqrt((Tdrift)^2+(Trc)^2);//Total time response in s
+mprintf("\n T = %.1e s",T);
+//The answers vary due to round off error