Optical properties of Yb-doped fibers prepared by gas phase doping

被引：10

作者：

Lindner, F. ^{[1
]}

Aichele, C. ^{[1
]}

Schwuchow, A. ^{[1
]}

Leich, M. ^{[1
]}

Scheffel, A. ^{[1
]}

Unger, S. ^{[1
]}

机构：

[1] Leibniz Inst Photon Technol eV IPHT, D-07702 Jena, Germany

来源：

OPTICAL COMPONENTS AND MATERIALS XI | 2014年 / 8982卷

关键词：

optical fiber; fiber laser; rare earth-doping; aluminum; MCVD; solution doping; gas phase doping; RARE-EARTH; LASER FIBERS; FABRICATION; SILICA; GLASS; MCVD;

D O I：

10.1117/12.2036928

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：11

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