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85 W Tm3+-doped silica fibre laser

85 W Tm3+-doped silica fibre laser

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An 85 W Tm3+-doped silica fibre laser is presented. To the best of the authors' knowledge this is the highest output power achieved by pumping with 793 nm. The slope efficiency was 56%, the threshold 11 W and the output wavelength centred at 2.04 µm. The high rate of cross relaxation in this laser provided a quantum efficiency of >130%.

Inspec keywords: thulium; silicon compounds; fibre lasers; optical pumping

Other keywords: 11 W; 2.04 micron; quantum efficiency; Tm3+-doped silica fibre laser; slope efficiency; 85 W; cross relaxation rate; 793 nm

Subjects: Fibre lasers and amplifiers; Fibre lasers and amplifiers; Design of specific laser systems

References

    1. 1)
    2. 2)
      • Shen, D.Y., Mackenzie, J.I., Sahu, J.K., Clarkson, W.A., Jackson, S.D.: `High-power and ultra-efficient operation of a Tm', MC‐6, Advanced Solid State Photonics, 2005.
    3. 3)
    4. 4)
      • S.D. Jackson , T.A. King . High-power diode-cladding-pumped Tm-doped silica fiber laser. Opt. Lett. , 1462 - 1464
    5. 5)
    6. 6)
      • Y. Jeong , J.K. Sahu , D.N. Payne , J. Nilsson . Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power. Opt. Express , 6088 - 6092
    7. 7)
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