Evidence of Tm impact in low-photodarkening Yb-doped fibers.
Identifieur interne : 000664 ( Ncbi/Checkpoint ); précédent : 000663; suivant : 000665Evidence of Tm impact in low-photodarkening Yb-doped fibers.
Auteurs : Sylvia Jetschke [Allemagne] ; Sonja Unger ; Anka Schwuchow ; Martin Leich ; Julia Fiebrandt ; Matthias J Ger ; Johannes KirchhofSource :
- Optics express [ 1094-4087 ] ; 2013.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Thulium, Ytterbium.
- instrumentation : Fiber Optic Technology.
- Equipment Design, Equipment Failure Analysis, Light, Scattering, Radiation.
Abstract
In contrast to Yb/Al-doped fibers, the influence of very low Tm(2)O(3) concentrations (≥ 0.1 mol-ppm) on photodarkening (PD) is clearly detectable in Yb/P-doped fibers that are known to show little degradation effects. For Tm(2)O(3) additions of more than 50 mol-ppm, the measured PD loss is even similar to Yb/Al-doped fibers with comparable rare earth concentrations. Our work reveals the risk of color center generation by pumping at wavelengths of 915 nm or 976 nm even in Al-free Yb-doped fibers and emphasizes the importance of high purity of raw materials for the preparation of Yb laser fibers with expected very low PD.
PubMed: 23546142
Affiliations:
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pubmed:23546142Le document en format XML
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<term>Scattering, Radiation</term>
<term>Thulium (chemistry)</term>
<term>Ytterbium (chemistry)</term>
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<term>Thulium ()</term>
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<front><div type="abstract" xml:lang="en">In contrast to Yb/Al-doped fibers, the influence of very low Tm(2)O(3) concentrations (≥ 0.1 mol-ppm) on photodarkening (PD) is clearly detectable in Yb/P-doped fibers that are known to show little degradation effects. For Tm(2)O(3) additions of more than 50 mol-ppm, the measured PD loss is even similar to Yb/Al-doped fibers with comparable rare earth concentrations. Our work reveals the risk of color center generation by pumping at wavelengths of 915 nm or 976 nm even in Al-free Yb-doped fibers and emphasizes the importance of high purity of raw materials for the preparation of Yb laser fibers with expected very low PD.</div>
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<name sortKey="Schwuchow, Anka" sort="Schwuchow, Anka" uniqKey="Schwuchow A" first="Anka" last="Schwuchow">Anka Schwuchow</name>
<name sortKey="Unger, Sonja" sort="Unger, Sonja" uniqKey="Unger S" first="Sonja" last="Unger">Sonja Unger</name>
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<country name="Allemagne"><noRegion><name sortKey="Jetschke, Sylvia" sort="Jetschke, Sylvia" uniqKey="Jetschke S" first="Sylvia" last="Jetschke">Sylvia Jetschke</name>
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