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      Single-mode spectral beam combining of high power Tm-doped fiber lasers with WDM cascades

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      Author(s)
      Yılmaz, Sinem
      Ottenhues, C.
      Theeg, T.
      Lamrini, S.
      Scholle, K.
      Schafer, M.
      Fuhrberg, P.
      Sayınç, H.
      İlday, Fatih Ömer
      Neumann, J.
      Overmeyer, L.
      Kracht, D.
      Date
      2016
      Source Title
      Proceedings of SPIE Vol. 9728, Fiber Lasers XIII: Technology, Systems, and Applications
      Print ISSN
      0277-786X
      Publisher
      SPIE
      Volume
      9728
      Pages
      1 - 6
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      Spectral beam combining of Tm-doped fiber lasers can increase the laser output power while simultaneously maintaining the single mode beam quality. We report on a spectral beam combining technique based on highly efficient in-house-made WDM cascade. We demonstrate continuous wave power combining employing a WDM cascade consisting of four fiber laser sources with emission wavelengths of 1920, 1949, 1996 and 2030 nm. A combined power of up to 38 W resulted in a combining efficiency of 69%.
      Keywords
      Fiber lasers
      Laser beam combining
      Thulium doped fiber lasers
      Combining efficiency
      Continuous-wave power
      Emission wavelength
      Permalink
      http://hdl.handle.net/11693/37674
      Published Version (Please cite this version)
      https://doi.org/10.1117/12.2212632
      Collections
      • Department of Electrical and Electronics Engineering 4011
      • Department of Physics 2550
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