Non-isothermal bleaching of photodarkened Yb-doped fibers

被引：51

作者：

Leich, Martin ^{[1
]}

Roepke, Ulrich ^{[1
]}

Jetschke, Sylvia ^{[1
]}

Unger, Sonja ^{[1
]}

Reichel, Volker ^{[1
]}

Kirchhof, Johannes ^{[1
]}

机构：

[1] Inst Photon Technol IPHT, D-07745 Jena, Germany

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 15期

关键词：

INVERSION;

D O I：

10.1364/OE.17.012588

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the thermal treatment of photodarkened Yb-doped fiber samples. The method of non-isothermal bleaching at different temperature ramp rates can be used to determine the thermal energy distribution of photodarkening induced color centers. A distributed activation energy with a mean value of about 1.3 eV and a FWHM of 0.5 eV was found. Spectral changes during thermal treatment were observed and could be interpreted, e.g. as an enhancement of the absorption cross section. (c) 2009 Optical Society of America

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页码：12588 / 12593

页数：6

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