Optical Fiber Communications 4th Edition by Gerd Keiser

Exercise 2

Consider a five-channel frequency-division- multiplexed (FDM) system having carriers at f 1 , f 2 = f 1 + f 3 = f 1 + 2, f 4 = f 1 + 3, and f 5 = f 1 + 4, where is the spacing between carriers. On a frequency plot, show the number and location of the triple-beat and two-tone third-order intermodulation products.