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+
+//OptoElectronics and Fibre Optics Communication, by C.K Sarkar and B.C Sarkar
+//Example 9.7
+//OS=Windows 10
+////Scilab version Scilab 6.0.0-beta-2(64 bit)
+clc;
+clear;
+
+//given
+P1=100;//power at the input in microwatts
+P2=83.2;//power at the output in microwatts
+P3=35.5;//power at the ouput after connector in microwatts
+L=1.8;//length of the added fibre in Km
+alpha=1.5;//fiber attenuation in dB/L;
+
+//case 1:
+Ls=-10*log10(P2/P1);//insertion loss of connector in dB
+mprintf("\n The insertion loss of connector is=%.2f dB",Ls);
+
+//case 2:
+deltaLs=-10*log10(P3/P1)-Ls-alpha*L;//excess loss of the connector
+mprintf("\n The excess loss of connector is=%.2f dB",deltaLs);