Monolithic all-glass pump combiner scheme for high-power fiber laser systems

We report on an integrated all-glass pump combiner for ytterbium-doped high power fiber lasers. The combining of multiple pump fibers with an active double clad fiber for high power amplification was successfully achieved by splicing them to a dichromatically coated planar convex lens. The measured...

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Published inOptics express Vol. 18; no. 12; pp. 13194 - 13203
Main Authors Kim, Jun Ki, Hagemann, Christian, Schreiber, Thomas, Peschel, Thomas, Böhme, Steffen, Eberhardt, Ramona, Tünnermann, Andreas
Format Journal Article
LanguageEnglish
Published United States 07.06.2010
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Summary:We report on an integrated all-glass pump combiner for ytterbium-doped high power fiber lasers. The combining of multiple pump fibers with an active double clad fiber for high power amplification was successfully achieved by splicing them to a dichromatically coated planar convex lens. The measured coupling efficiency of such a combining scheme was typically in excess of 80%, with 86.5% achieved in maximum. Theoretical analysis is discussed in order to get optimized parameters and to consider the scaling of this type of coupler to higher average powers.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.013194