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Proceedings Paper

Spectroscopic characteristics and modeling of the Pr3+ doped fluoride fiber amplifier
Author(s): Alban Remillieux; Bernard Jacquier
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Paper Abstract

We develop a simple method leading to the determination of important parameters for the Praseodymium doped fluoride fiber amplifier (PDFFA), such as the non-radiative energy transfer upconversion coefficient or pump excited state absorption cross section. We apply this method to five ZBLAN bulks of different concentration and to a ZBLAN: Pr3+ 500 ppmWt single-mode fiber. The resulting non-radiative energy transfer upconversion coefficients cT1 are 5 s-1 at 500 ppmWt and 9 s-1 at 1000 ppmWt. When the pump wavelength is set at 1017 nm, (sigma) ESAp is very weak: less than 5.10-26 cm2. We measure that the 3P0 population varies to the 2.7th pump power. We conclude that the upconversion mechanism leading to the excitation of 3P0-1-1I6 states in the PDFFA is different from all that has been previously suggested and we propose a three photon process. According to this study, a new model of the PDFFA is suggested.

Paper Details

Date Published: 20 November 1996
PDF: 11 pages
Proc. SPIE 2841, Doped Fiber Devices, (20 November 1996); doi: 10.1117/12.258966
Show Author Affiliations
Alban Remillieux, Univ. Lyon I--Claude Bernard (France)
Bernard Jacquier, Univ. Lyon I--Claude Bernard (France)

Published in SPIE Proceedings Vol. 2841:
Doped Fiber Devices
Michel J. F. Digonnet; Francois Ouellette, Editor(s)

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