//Ex:5.6
clc;
clear;
close;
n1=1.46;// core refractive index
dl=0.01;// relative index difference
L=10*10^3;// optical length in meter
c=3*10^8;// the speed of light in m/s
dt=(L*n1*dl)/c;// delay difference in s
dT=dt*10^9;// delay difference in ns
rm=(L*n1*dl)/(2*sqrt(3)*c);// rms pulse broadening s
rM=rm*10^9;// rms pulse broadening ns
bt=0.2/rm;// max bit rate in bit/sec
bT=bt/10^6;// max bit rate in M bits/sec
bl=bt*L;// bandwidth length product in Hz meter
bL=(bt*L)/(10^6*10^3);// bandwidth length product in MHz km
printf("The delay difference =%d ns", dT);
printf("\n The rms pulse broadening =%f ns", rM);
printf("\n The max bit rate =%f M bits/sec", bT);
printf("\n The bandwidth length product =%f MHz km", bL);