High power, 100 W-class, thulium-doped all-fiber lasers


  • Maria Michalska Institute of Optoelectronics, Military University of Technology
  • Paweł Grześ Institute of Optoelectronics, Military University of Technology
  • Jacek Swiderski Institute of Optoelectronics, Military University of Technology




In this work, sub-kilowatt, compact thulium-doped fiber laser systems, operating at a wavelength of 1940 nm, have been presented. The continuous-wave laser power generated out of a single oscillator was 90 W with a slope efficiency of 56.7%. Applying a master oscillator – power amplifier configuration, an output power of 120.5 W with a slope efficiency of 58.2% was demonstrated. These are the first results of the works aimed at developing kW-class “eye-safe” laser systems in Poland.

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How to Cite

M. Michalska, P. Grześ, and J. Swiderski, “High power, 100 W-class, thulium-doped all-fiber lasers”, Photonics Lett. Pol., vol. 11, no. 4, pp. 109–111, Dec. 2019.