Characterization of fluorescence lifetime of Tm-doped fibers with increased quantum conversion efficiency

Jakub Cajzl; Pavel Peterka; Pavel Honzátko; Jan Mrázek; Ondřej Podrazký; Filip Todorov; Petar Gladkov; Jayanta K. Sahu; Miguel Nunez-Velazquez; Pavla Nekvindová; Ivan Kašík

doi:10.1117/12.2070425

6 January 2015 Characterization of fluorescence lifetime of Tm-doped fibers with increased quantum conversion efficiency

Jakub Cajzl, Pavel Peterka, Pavel Honzátko, Jan Mrázek, Ondřej Podrazký, Filip Todorov, Petar Gladkov, Jayanta K. Sahu, Miguel Nunez-Velazquez, Pavla Nekvindová, Ivan Kašík

Author Affiliations +

Proceedings Volume 9450, Photonics, Devices, and Systems VI; 945017 (2015) https://doi.org/10.1117/12.2070425
Event: Photonics Prague 2014, 2014, Prague, Czech Republic

Abstract

In this work we report on the fluorescence lifetime characterization of the experimentally prepared Tm-doped silica optical fibers with increased quantum conversion efficiency (QE). Optical fibers were drawn from preforms prepared by conventional solution-doping of thulium and aluminium chlorides and by deposition of dispersed alumina nanoparticles with thulium chloride. Prepared preforms and optical fibers were characterized by means of thulium and aluminium concentrations, refractive index profiles, optical spectral attenuations (absorptions) and fluorescence lifetimes. Highly aluminium-codoped optical fiber prepared from alumina nanoparticles exhibited fluorescence lifetime of about 690 μs, which is about 40% higher compared to the conventionally prepared Tm-doped silica fiber.

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Jakub Cajzl, Pavel Peterka, Pavel Honzátko, Jan Mrázek, Ondřej Podrazký, Filip Todorov, Petar Gladkov, Jayanta K. Sahu, Miguel Nunez-Velazquez, Pavla Nekvindová, and Ivan Kašík "Characterization of fluorescence lifetime of Tm-doped fibers with increased quantum conversion efficiency", Proc. SPIE 9450, Photonics, Devices, and Systems VI, 945017 (6 January 2015); https://doi.org/10.1117/12.2070425

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