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Preventing Photodarkening in Ytterbium-Doped High Power Fiber Lasers; Correlation to the UV-Transparency of the Core Glass
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Responsible organisation
2008 (English)In: Optics Express, ISSN 1094-4087, Vol. 16, no 2, 1260-1268 p.Article in journal (Refereed) Published
Abstract [en]

 

Photodarkening experiments are performed on ytterbium-doped silicate glass

samples. A strong charge-transfer (CT) absorption band near 230nm in

aluminosilicate glass is found to be correlated to the mechanism of induced

color center formation. Excitation into the CT-absorption band generates

similar color centers as observed in ytterbium-doped fiber lasers under

915nm high power diode pumping. The position of the CT-absorption band is

compositional dependent and is shifted to shorter wavelengths in ytterbium

doped phosphosilicate glass. Very low levels of photodarkening is observed

for the ytterbium doped phosphosilicate glass composition under 915nm high

power diode pumping. Possible excitation routes to reach the CT-absorption

band under 915nm pumping are discussed.

 

Place, publisher, year, edition, pages
2008. Vol. 16, no 2, 1260-1268 p.
Keyword [en]
Photodarkening, charge-transfer, ytterbium
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-4491DOI: 10.1364/OE.16.001260ISI: 000252479700077PubMedID: 18542200Scopus ID: 2-s2.0-38549163196Local ID: 5538OAI: oai:DiVA.org:miun-4491DiVA: diva2:29523
Available from: 2008-11-29 Created: 2008-11-29 Last updated: 2011-05-29Bibliographically approved
In thesis
1. Materials optimization for optical fiber amplifiers and fiber lasers
Open this publication in new window or tab >>Materials optimization for optical fiber amplifiers and fiber lasers
2008 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Sundvall: Mid Sweden University, 2008. 46 p.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 50
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-7566 (URN)978-91-85317-93-6 (ISBN)
Public defence
(English)
Supervisors
Available from: 2008-12-10 Created: 2008-12-10 Last updated: 2008-12-10Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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