NUMERICAL INTEGRATION OF MARCUSE'S POWER LOSS FORMULA

Abstract

D. Marcuse [1] has derive a power loss formula to calculate the power losses from an electromagnetic wave traveling down a tapered dielectric rod. He first considers the losses at a step and then approximates the tapered rod by a series of steps. He assumes that, when the radius of the rod is a, the constants describing the bound mode will be the same as for an infinite rod. When the radius changes, so do the coefficients. Further, there is an additional change due to power taken from the bound mode and converted into the radiation modes. For a full discussion of the model, the interested reader is referred to [1]. Here, we are concerned only with the numerical integration of his formula