RAPID METHOD FOR EVALUATING THE EFFICIENCY OF EXCITATION ENERGY TRANSFER BETWEEN YTTERBIUM AND ERBIUM IONS IN AN ACTIVE FIBER PREFORM
A. S. Smirnov1,2, K. P. Latkin1,2, Ya. E. Sadovnikova3,4, E. G. Leksina5, A. S. Kurkov1,2,3
1Perm National Research Polytechnic University, pr. Komsomol’skii 29, Perm, 614990 Russia
2Photonics Laboratory of Perm Scientific Center, Ural Branch of Russian Academy of Sciences, ul. Lenina 13a, Perm, 614990 Russia
3Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991 Russia
4Moscow State University of Instrument Engineering and Computer Science, ul. Stromynka 20, Moscow 107966, Russia
5Research Institute of Nuclear Physics, Leninskie Gory 1, str. 5, Moscow, 119234 Russia
Keywords: эрбий, иттербий, эрбий-иттербиевые волокна, эффективность передачи энергии возбуждения, erbium, ytterbium, erbium-ytterbium fiber, excitation energy transfer efficiency
Abstract
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.
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