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

Joan J. Montiel i Ponsoda; Mikko Söderlund; Jeffrey Koplow; Joona Koponen; Aarni Iho; Seppo Honkanen

doi:10.1117/12.809182

19 February 2009 Combined photodarkening and thermal bleaching measurement of an ytterbium-doped fiber

Joan J. Montiel i Ponsoda, Mikko Söderlund, Jeffrey Koplow, Joona Koponen, Aarni Iho, Seppo Honkanen

Proceedings Volume 7195, Fiber Lasers VI: Technology, Systems, and Applications; 71952D (2009) https://doi.org/10.1117/12.809182
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

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.

Citation Download Citation

Joan J. Montiel i Ponsoda, Mikko Söderlund, Jeffrey Koplow, Joona Koponen, Aarni Iho, and Seppo Honkanen "Combined photodarkening and thermal bleaching measurement of an ytterbium-doped fiber", Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71952D (19 February 2009); https://doi.org/10.1117/12.809182

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