The effect of temperature dependence of thulium cross sections on thulium-doped fiber laser operation

0584363 - ÚFE 2024 RIV US eng C - Conference Paper (international conference)
Schreiber, Ondřej - Jiříčková, Bára - Aubrecht, Jan - Grábner, Martin - Jauregui, C. - Honzátko, Pavel - Peterka, Pavel
The effect of temperature dependence of thulium cross sections on thulium-doped fiber laser operation.
Proceedings of SPIE - The International Society for Optical Engineering 12400. Bellingham: SPIE, 2023 - (Supradeepa, V.), č. článku 124000A. ISBN 978-151065905-6. ISSN 0277-786X. E-ISSN 1996-756X.
[Fiber Lasers XX: Technology and Systems. San Francisco (US), 30.01.2023-02.02.2023]
R&D Projects: GA ČR(CZ) GA23-05701S
Institutional support: RVO:67985882
Keywords : cross sections * cooling * heating * high power TDFL * temperature effect * thulium-doped fiber laser
OECD category: Optics (including laser optics and quantum optics)
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12400/124000A/The-effect-of-temperature-dependence-of-thulium-cross-sections-on/10.1117/12.2647852.short

We report on the first measurement of the temperature dependent silica thulium-doped fiber absorption and emission cross-sections in the spectral range 700–2200 nm for a temperature range −196–300 °C. Using this data, we simulated the effect of temperature-induced shift of cross-sections on high power thulium-doped fiber laser (TDFL) performance when clad-pumped at 790 nm. The simulations show considerable impact on TDFL threshold and efficiency for shorter fiber length. The effect is most apparent for amplifier setup, especially with strong amplified spontaneous emission
Permanent Link: https://hdl.handle.net/11104/0352281