Materials for high-power fiber lasers

被引：88

作者：

Kirchhof, J. ^{[1
]}

Unger, S. ^{[1
]}

Schwuchow, A. ^{[1
]}

Grimm, S. ^{[1
]}

Reichel, V. ^{[1
]}

机构：

[1] Inst Phys Hochtechnol EV, Opt Div, D-07702 Jena, Germany

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2006年 / 352卷 / 23-25期

关键词：

oxidation; reduction; optical fibers; lasers; optical spectroscopy; silica; rare-earths in glasses;

D O I：

10.1016/j.jnoncrysol.2006.02.061

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The absorption and emission properties of silica based ytterbium doped preforms, made by Modified Chemical Vapor Deposition, and of the drawn fibers were investigated as a function of the atmosphere during the preform collapsing. Under increasingly reducing conditions for the collapsing atmosphere, a strong UV/VIS absorption is built up, accompanied with an UV excited emission in the visible region, obviously induced by the formation of Yb2+ ions. Both the fluorescence lifetime of the Yb3+ lasing level and the cooperative fluorescence in the visible are remarkably diminished. Laser power experiments with the different fibers show a strong deterioration of the laser efficiency parallel to the degree of reduction of the doped glasses. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2399 / 2403

页数：5

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