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Proceedings Paper

Optical absorption and emission properties of Nd3-doped fluorophosphates glass for broadband fiber amplifier applications
Author(s): Ju H. Choi; Frank G. Shi; Alfred A. Margaryan; Ashot Margaryan; Wytze E. van der Veer
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Paper Abstract

A new series of fluorophosphate glass is developed which can be doped with an extremely high concentration of Nd3+. The dependence of the optical absorption and emission properties on dopant concentration is reported here for the concentration range 2.5×1020 to 1.25×1021 ions/cm3. Absorption and emission measurements are performed in order to evaluate the spontaneous emission probability, absorption cross-section, emission cross-section, and laser performance parameters. We have synthesized two glass systems: MBBA/NdI with an Nd3+ concentration of 2.50×1020 cm3 and MBBA/NdII with an Nd3+ concentration 6.26×1020 cm3. The stimulated emission cross sections are 1.14 and 1.64×104 cm2 for the 4F3/24I13/2 transition and 3.68 and 6.68×104 cm2 for the 4F3/24I13/2 transition in MBBA/NdI and MBBA/NdII, respectively. Similarly, the extraction efficiencies are measured to be 1.91, 2.31 (4FI3/24I13/2) and 6.18, 9.41 (4F3/24I11/2) in MBBA/NdI and the MBBA/NdII, respectively. This new (Mg, Ba)F2-based fluorophosphate glass (MBBA system) is promising for broadband compact optical fiber and waveguide amplifier applications.

Paper Details

Date Published: 3 July 2003
PDF: 6 pages
Proc. SPIE 4974, Advances in Fiber Lasers, (3 July 2003); doi: 10.1117/12.478305
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)
Wytze E. van der Veer, Univ. of California/Irvine (United States)


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

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