Rapid Method for Evaluating the Efficiency of Excitation Energy Transfer between Ytterbium and Erbium Ions in an Active Fiber Preform

摘要

A rapid method is proposed to evaluate the efficiency of excitation energy transfer between ytterbium and erbium ions from measured relative luminescence intensity in different spectral regions in an active fiber preform, taking into account the concentration of active ions and their spectroscopic constants.