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Peer-reviewedCC BY 4.0Optics Letters

Actively mode-locked Tm³⁺-doped silica fiber laser with wavelength-tunable, high average output power

  • Christian Kneis
  • Brenda Donelan
  • Antoine Berrou
  • Inka Manek-Hönninger
  • Thierry Robin
  • Benoît Cadier
  • Marc Eichhorn
  • Christelle Kieleck
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Abstract

A diode-pumped, actively mode-locked high-power thulium (Tm³⁺)-doped double-clad silica fiber laser is demonstrated, providing an average output power in mode-locked (continuous wave) operation of 53 W (72 W) with a slope efficiency of 34% (38%). Mode-locking in the 6th-harmonic order was obtained by an acousto-optic modulator driven at 66 MHz without dispersion compensation. The shortest measured output pulse width was 200 ps. Owing to a diffraction grating as cavity end mirror, the central wavelength could be tuned from 1.95 to 2.13 μm. The measured beam quality in mode-locked and continuous wave operation has been close to the diffraction limit.

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Cite

BibTeXRIS
BibTeX
@article{kneis2026actively,
  title = {{Actively mode-locked Tm³⁺-doped silica fiber laser with wavelength-tunable, high average output power}},
  author = {Christian Kneis and Brenda Donelan and Antoine Berrou and Inka Manek-Hönninger and Thierry Robin and Benoît Cadier and Marc Eichhorn and Christelle Kieleck},
  journal = {Optics Letters},
  year = {2026},
  month = sep,
  doi = {10.1364/ol.40.001464},
  url = {https://hal.science/hal-05743754v1},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Actively mode-locked Tm³⁺-doped silica fiber laser with wavelength-tunable, high average output power
AU  - Christian Kneis
AU  - Brenda Donelan
AU  - Antoine Berrou
AU  - Inka Manek-Hönninger
AU  - Thierry Robin
AU  - Benoît Cadier
AU  - Marc Eichhorn
AU  - Christelle Kieleck
PY  - 2026
DA  - 2026/09/09
JO  - Optics Letters
DO  - 10.1364/ol.40.001464
UR  - https://hal.science/hal-05743754v1
AB  - A diode-pumped, actively mode-locked high-power thulium (Tm³⁺)-doped double-clad silica fiber laser is demonstrated, providing an average output power in mode-locked (continuous wave) operation of 53 W (72 W) with a slope efficiency of 34% (38%). Mode-locking in the 6th-harmonic order was obtained by an acousto-optic modulator driven at 66 MHz without dispersion compensation. The shortest measured output pulse width was 200 ps. Owing to a diffraction grating as cavity end mirror, the central wavelength could be tuned from 1.95 to 2.13 μm. The measured beam quality in mode-locked and continuous wave operation has been close to the diffraction limit.
SN  - 0146-9592
SN  - 1539-4794
ER  -