title: Frequency response in step index plastic optical fibers obtained from the generalized power flow equation.
abstract: We present a method to obtain the frequency response of step index (SI) plastic optical fibers (POFs) based on the power flow equation generalized to incorporate the temporal dimension where the fibre diffusion and attenuation are functions of the propagation angle. To solve this equation we propose a fast implementation of the finite-difference method in matrix form. Our method is validated by comparing model predictions to experimental data. In addition, the model provides the space-time evolution of the angular power distribution when it is transmitted throughout the fibre which gives a detailed picture of the POFs capabilities for information transmission. Model predictions show that angular diffusion has a strong impact on temporal pulse widening with propagation.
authors.affiliation: GTF, Aragón Institute of Engineering Research (i3A), Department of Electronic Engineering, University of Zaragoza, María de Luna 1, E-50018 Zaragoza, Spain. jmateo@unizar.es
authors.forename: J
authors.initials: J
authors.lastname: Mateo
authors.forename: M A
authors.initials: MA
authors.lastname: Losada
authors.forename: J
authors.initials: J
authors.lastname: Zubia
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008962:Models, Theoretical; D055100:Optical Fibers; D010969:Plastics / Q000737:chemistry*; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity
chemical_list: D010969:Plastics