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Proceedings Paper

Optical properties of Yb-doped fibers prepared by gas phase doping
Author(s): F. Lindner; C. Aichele; A. Schwuchwo; M. Leich; A. Scheffel; S. Unger
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Paper Abstract

The active core diameter in silica preforms can be significantly increased by the deposition of ytterbium (Yb) and the most important codopant aluminum (Al) in the gas phase through the high-temperature evaporation of an Yb chelate compound and Al chloride in the Modified Chemical Vapor Deposition (MCVD) process. Here, we report on systematic investigations of the incorporation of Yb and Al into silica by gas phase doping technique. Preforms and fibers were prepared in a wide range of Yb and Al concentrations. The samples were characterized concerning the radial distribution of the refractive index and dopant concentrations, the efficiency of the deposition, and the absorption and emission properties in the NIR region. First laser experiments have demonstrated a slope efficiency of 80%, which is comparable to fibers made by MCVD/ solution doping and powder sinter technology.

Paper Details

Date Published: 7 March 2014
PDF: 11 pages
Proc. SPIE 8982, Optical Components and Materials XI, 89820R (7 March 2014); doi: 10.1117/12.2036928
Show Author Affiliations
F. Lindner, Institut für Photonische Technologien e.V. (Germany)
C. Aichele, Institut für Photonische Technologien e.V. (Germany)
A. Schwuchwo, Institut für Photonische Technologien e.V. (Germany)
M. Leich, Institut für Photonische Technologien e.V. (Germany)
A. Scheffel, Institut für Photonische Technologien e.V. (Germany)
S. Unger, Institut für Photonische Technologien e.V. (Germany)


Published in SPIE Proceedings Vol. 8982:
Optical Components and Materials XI
Michel J. F. Digonnet; Shibin Jiang, Editor(s)

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