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//Example 12.22
//Program to determine
//(a)The separation for the soliton pulses to avoid interaction
//(b)The transmission bit rate of the optical soliton communication
//system
clear;
clc ;
close ;
//Given data
To=70*10^(-12); //s - BIT PERIOD
tau=6*10^(-12); //s - PULSE WIDTH
Beeta2=-0.5*10^(-12)*10^(-12)*10^(-3);//s^2/km - 2nd ORDER DISPERSION
// COEFFICIENT
La=50*10^3; //AMPLIFIER SPACING
//(a)The separation for the soliton pulses to avoid interaction
qo=1/2*(To/tau);
//(b)The transmission bit rate of the optical soliton comm. system
Bt=1/(2*qo)*1/sqrt(abs(Beeta2)*La);
//Displaying the Results in Command Window
printf("\n\n\t(a)The separation for the soliton pulses to avoid interaction is %0.1f .",qo);
printf("\n\n\t(b)The maximum bit rate of the optical soliton communication system is much less than %0.2f Gbit/s .",Bt/10^9);
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