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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 42,
  • Issue 1,
  • pp. 394-398
  • (2024)

High-Power Thulium-Doped Fiber MOPA Emitting at 2036 nm

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Abstract

An all-fiber laser system is presented with a simple MOPA configuration composed of a seed laser followed by a one-stage high-power amplifier. The seed delivers 10 W of output power at 2036 nm. The high-power amplifier operates with a high slope efficiency of 59%. An output power of 937 W is demonstrated with a close to diffraction limited beam quality. No nonlinear effects were observed.

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