Nonsaturable absorption in alumino-silicate bismuth-doped fibers

A. V. Kir'yanov; V. V. Dvoyrin; V. M. Mashinsky; Yu O. Barmenkov; E. M. Dianov

doi:10.1063/1.3532049

Nonsaturable absorption in alumino-silicate bismuth-doped fibers

A. V. Kir'yanov
, V. V. Dvoyrin
, V. M. Mashinsky
, Yu O. Barmenkov
, E. M. Dianov

College of Engineering and Physical Sciences

Centro de Investigaciones en Optica, A.C.
A.M. Prokhorov General Physics Institute of the Russian Academy of Sciences
Fiber Optics Research Center of Russian Academy of Sciences

Research output: Contribution to journal › Article › peer-review

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Abstract

We report an experimental and theoretical investigation of fluorescence decay and transmission coefficient at ∼1 μm pumping for a series of bismuth (Bi) doped alumino-silicate fibers with different concentrations of Bi centers. By modeling the experimental data, we show that the excited-state absorption (ESA) and up-conversion (UC) processes are responsible for a growth of nonsaturable absorption and deviation from exponential the fluorescence decay in the fibers with an increase in Bi centers content. Assuming that Bi centers ensemble is composed of subsystems of single and paired centers, and an increase in partial weight of the latter with a Bi centers concentration growth, we can successfully explain the experimental data. Also, these assumptions allow us to estimate the constants characterizing the ESA and both homogeneous and inhomogeneous UC processes in the fibers.

Original language	English
Article number	023113
Journal	Journal of Applied Physics
Volume	109
Issue number	2
DOIs	https://doi.org/10.1063/1.3532049
Publication status	Published - 15 Jan 2011

Bibliographical note

Copyright © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics 109, 023113 (2011); and may be found at https://doi.org/10.1063/1.3532049

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title = "Nonsaturable absorption in alumino-silicate bismuth-doped fibers",

abstract = "We report an experimental and theoretical investigation of fluorescence decay and transmission coefficient at ∼1 μm pumping for a series of bismuth (Bi) doped alumino-silicate fibers with different concentrations of Bi centers. By modeling the experimental data, we show that the excited-state absorption (ESA) and up-conversion (UC) processes are responsible for a growth of nonsaturable absorption and deviation from exponential the fluorescence decay in the fibers with an increase in Bi centers content. Assuming that Bi centers ensemble is composed of subsystems of single and paired centers, and an increase in partial weight of the latter with a Bi centers concentration growth, we can successfully explain the experimental data. Also, these assumptions allow us to estimate the constants characterizing the ESA and both homogeneous and inhomogeneous UC processes in the fibers.",

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AU - Dvoyrin, V. V.

AU - Mashinsky, V. M.

AU - Barmenkov, Yu O.

AU - Dianov, E. M.

N1 - Copyright © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics 109, 023113 (2011); and may be found at https://doi.org/10.1063/1.3532049

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N2 - We report an experimental and theoretical investigation of fluorescence decay and transmission coefficient at ∼1 μm pumping for a series of bismuth (Bi) doped alumino-silicate fibers with different concentrations of Bi centers. By modeling the experimental data, we show that the excited-state absorption (ESA) and up-conversion (UC) processes are responsible for a growth of nonsaturable absorption and deviation from exponential the fluorescence decay in the fibers with an increase in Bi centers content. Assuming that Bi centers ensemble is composed of subsystems of single and paired centers, and an increase in partial weight of the latter with a Bi centers concentration growth, we can successfully explain the experimental data. Also, these assumptions allow us to estimate the constants characterizing the ESA and both homogeneous and inhomogeneous UC processes in the fibers.

AB - We report an experimental and theoretical investigation of fluorescence decay and transmission coefficient at ∼1 μm pumping for a series of bismuth (Bi) doped alumino-silicate fibers with different concentrations of Bi centers. By modeling the experimental data, we show that the excited-state absorption (ESA) and up-conversion (UC) processes are responsible for a growth of nonsaturable absorption and deviation from exponential the fluorescence decay in the fibers with an increase in Bi centers content. Assuming that Bi centers ensemble is composed of subsystems of single and paired centers, and an increase in partial weight of the latter with a Bi centers concentration growth, we can successfully explain the experimental data. Also, these assumptions allow us to estimate the constants characterizing the ESA and both homogeneous and inhomogeneous UC processes in the fibers.

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JO - Journal of Applied Physics

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Nonsaturable absorption in alumino-silicate bismuth-doped fibers

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