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Proceedings Paper

Combined photodarkening and thermal bleaching measurement of an ytterbium-doped fiber
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Paper Abstract

A combined photodarkening and thermal bleaching measurement of a large-mode-area (LMA) ytterbium-doped fiber (YDF) is presented. Photodarkened YDF sample is recovered to pre-photodarkened state by thermal annealing. As a result, this approach enables repeated measurements with the same sample and therefore eliminates uncertainties related to changing of the sample (such as sample length and splice losses). Additionally, our approach potentially improves the accuracy and repeatability of the photodarkening rate measurement, and also allows automation of the measurement procedure.

Paper Details

Date Published: 19 February 2009
PDF: 7 pages
Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71952D (19 February 2009); doi: 10.1117/12.809182
Show Author Affiliations
Joan J. Montiel i Ponsoda, Helsinki Univ. of Technology (Finland)
Mikko Söderlund, Helsinki Univ. of Technology (Finland)
Jeffrey Koplow, Sandia National Labs. (United States)
Joona Koponen, nLIGHT Corp. (Finland)
Aarni Iho, Helsinki Univ. of Technology (Finland)
Seppo Honkanen, Helsinki Univ. of Technology (Finland)


Published in SPIE Proceedings Vol. 7195:
Fiber Lasers VI: Technology, Systems, and Applications
Denis V. Gapontsev; Dahv A. Kliner; Jay W. Dawson; Kanishka Tankala, Editor(s)

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