Vol. 41, Issue 3, pp. 649-660 (2011)
Keywords
modal noise, multimode fiber, multimode coupler, passive optical network (PON)
Abstract
In this paper, we present a theory concerning low-frequency modal noise in the cascade of couplers. This theory enables calculation of signal-to-noise ratio in cascade connection of multimode couplers. We provide a series of numerical calculations based on the model for different realizations of the couplers.