Electronic Communication Systems 2nd Edition by Roy Blake

Exercise 6

The fiber whose dispersion equation is given in Equation (24.11) has zero dispersion at a wavelength of 1315 nm and has a zero-dispersion slope of 0.075 ps/(nm 2 - km). Calculate the total dispersion of 120 km of this fiber when it is used with a source having a linewidth of 1.5 nm at a wavelength of 1560 nm.