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

Sinem Yilmaz; Christoph Ottenhues; Thomas Theeg; Samir Lamrini; Karsten Scholle; Michael Schäfer; Peter Fuhrberg; Hakan Sayinc; Fatih Ömer Ilday; Jörg Neumann; Ludger Overmeyer; Dietmar Kracht

doi:10.1117/12.2212632

9 March 2016 Single-mode spectral beam combining of high power Tm-doped fiber lasers with WDM cascades

Sinem Yilmaz, Christoph Ottenhues, Thomas Theeg, Samir Lamrini, Karsten Scholle, Michael Schäfer, Peter Fuhrberg, Hakan Sayinc, Fatih Ömer Ilday, Jörg Neumann, Ludger Overmeyer, Dietmar Kracht

Author Affiliations +

Proceedings Volume 9728, Fiber Lasers XIII: Technology, Systems, and Applications; 97280O (2016) https://doi.org/10.1117/12.2212632
Event: SPIE LASE, 2016, San Francisco, California, United States

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-housemade 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%.

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Sinem Yilmaz, Christoph Ottenhues, Thomas Theeg, Samir Lamrini, Karsten Scholle, Michael Schäfer, Peter Fuhrberg, Hakan Sayinc, Fatih Ömer Ilday, Jörg Neumann, Ludger Overmeyer, and Dietmar Kracht "Single-mode spectral beam combining of high power Tm-doped fiber lasers with WDM cascades", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97280O (9 March 2016); https://doi.org/10.1117/12.2212632

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