Optical Fiber Communications 4th Edition by Gerd Keiser

Exercise 14

Solve Eq. (3.7) to make plots of the radius of bend curvature versus the fiber core radius a for values of M eff / M = 10, 50, and 75 percent at wavelengths of 1300 nm and 1550 nm. Let a be in the range 5 m a 30 m.