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Experimental eviden...
Experimental evidence for the formation of divalent Ytterbium in the photodarkening process of Yb-doped fiber lasers
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- Rydberg, Sara (author)
- Mittuniversitetet,Avdelningen för elektronikkonstruktion
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- Engholm, Magnus (author)
- Mittuniversitetet,Avdelningen för elektronikkonstruktion
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(creator_code:org_t)
- 2013
- 2013
- English.
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In: Optics Express. - 1094-4087. ; 21:6, s. 6681-6688
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https://miun.diva-po... (primary) (Raw object)
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Abstract
Subject headings
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- In this work we present experimental evidence that the valence instability of the ytterbium ion play a key role for the observed photodarkening mechanism in Yb-doped fiber lasers. Luminescence and excitation spectroscopy performed on UV irradiated Yb/Al doped silica glass preforms and near-infrared diode pumped photodarkened fibers show a concentration increase of Yb2+ ions. A concentration decrease in Yb3+ could also be observed for the UV irradiated preform. The findings contribute to an increased understanding of the kinetic processes related to photodarkening in Yb-doped high power fiber lasers.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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