Propagation of photoluminescence photons in fluorescent optical fibers

Abstract

In this paper, we present a simple numerical model to describe the propagation characteristics of PL photons in fluorescent optical fibers. Furthermore, we clarify that the photoluminescent intensity distribution is expressed by a simple approximate solution, and we demonstrate its validity through numerical calculations. The experimental results show that the calculated photoluminescent spectra agree well with the measured spectra for fluorescent fiber fabricated by a heat-shrinkable tube, an ultraviolet curable resin, and Lumogen F Red 305 of fluorescent material.