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Proceedings Paper

Spectral properties of Nd3+ ion in new fluorophosphates glasses: Judd-Ofelt intensity parameters
Author(s): Ju H. Choi; Frank G. Shi; Alfred A. Margaryan; Ashot Margaryan
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Paper Abstract

Judd-Ofelt parameters for Nd3+ ions in a new series of (Mg, Ba)F2-based fluorophosphate glass (the MBBA system) are determined from the intensities of the integrated absorption bands of the Nd3+ ion in the MBBA system. The intensity parameters, Ω2, Ω6, and Ω4 for f-f transitions of Nd3+ ions are found to be -1.02, 10.82, and 4.27 (×1020 cm2), and 1.19, 3.95 and 3.11 in the MBBA/NdI and MBBA/NdII systems, respectively. The measured lifetime τf is 168 μs for the MBBA/NdI system, while the Judd-Ofelt analysis expects a radiative transition lifetime Arad for 4F3/2 to be 316 μs, resulting in a fluorescence quantum efficiency of 47%. The results are compared with those reported in the literature for other fluorophosphate glasses and show that 4F3/2 to 4I11/2 transition has the most potential for laser application with a peak fluorescence at 1056nm.

Paper Details

Date Published: 3 July 2003
PDF: 7 pages
Proc. SPIE 4974, Advances in Fiber Lasers, (3 July 2003); doi: 10.1117/12.478306
Show Author Affiliations
Ju H. Choi, Univ. of California/Irvine (United States)
Frank G. Shi, Univ. of California/Irvine (United States)
Alfred A. Margaryan, AFO Research Inc. (United States)
Ashot Margaryan, AFO Research Inc. (United States)

Published in SPIE Proceedings Vol. 4974:
Advances in Fiber Lasers
L. N. Durvasula, Editor(s)

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