2021/01/19 by Astar, W.
#05-08 #33-02 #33C10 #33C20 #33C90 #35A99 #40G99 #78-02 #78-10 #FOS: Electrical engineering #FOS: Physical sciences #J.2.7 #J.2.8 #J.2.9 #Optics (physics.optics) #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · doi:10.48550/arxiv.2101.07842
The nonlinear coefficient γ of the step-index single-mode fiber (SMF) is inversely proportional to the effective area of that fiber. An analytical expression for the effective area of the hybrid HE11-mode of the SMF is derived for the first time, using its exact electromagnetic field expressions. The effective area is found in terms of generalized hypergeometric functions. A simpler expression is also deduced under the weakly-guided fiber approximation, and is found to be in agreement with established theory.