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+//Fiber Optics Communication Technology, by Djafer K. Mynbaev and Lovell L.scheiner
+//Windows 8
+//Scilab version- 6.0.0
+//Example 5.3.6
+clc;
+clear;
+//given
+
+Dpmd=0.5;//polarization mode dispersion coefficient in ps/sqrt(km)
+
+L=100;//for assumed fiber length in km
+deltatpmd=Dpmd*sqrt(L);//pulse spread due to PMD in ps
+mprintf("Pulse spread caused by PMD for single mode fiber= %.2f ps",deltatpmd);
+BRpmd=1/(4*deltatpmd);//maximum bit rate limited by PMD in 10^12(bps)
+mprintf("\nBit Rate limited by PMD= %.2f Gbps",BRpmd*1e3);//multiplication by 1e3 to convert unit into Gbps from 10^12(bps)
+