In this video, we demonstrate a step-by-step simulation of Single Mode Optical Fiber using COMSOL Multiphysics. You'll learn how to model the fiber structure, set up boundary conditions, select appropriate physics (like Electromagnetic Waves, Frequency Domain), and. Among the wide variety of fibers that exist, one important categorization criterion is if the fiber is multimode or single mode. In a single mode fiber, only one spatial mode can exist. You'll begin with the fundamentals of the COMSOL interface. In this paper we investigate by simulation the dependence of the numerical aperture, normalized frequency and power propagating in the fibre, on the refractive index difference between the cladding and the core. The main purpose of the presented numerical modelling results is developing a simple. Step index fibers are mostly single mode which is defined by the way light is traveling through transverse mode in space and is expressed by Helmholtz Equation. The simulation analytics is divided into two parts, i.
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