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

Ondřej Schreiber; Bára Jiříčková; Jan Aubrecht; Martin Grábner; César Jauregui; Pavel Honzátko; Pavel Peterka

doi:10.1117/12.2647852

8 March 2023 The effect of temperature dependence of thulium cross sections on thulium-doped fiber laser operation

Ondřej Schreiber, Bára Jiříčková, Jan Aubrecht, Martin Grábner, César Jauregui, Pavel Honzátko, Pavel Peterka

Proceedings Volume 12400, Fiber Lasers XX: Technology and Systems; 124000A (2023) https://doi.org/10.1117/12.2647852
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

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.

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Ondřej Schreiber, Bára Jiříčková, Jan Aubrecht, Martin Grábner, César Jauregui, Pavel Honzátko, and Pavel Peterka "The effect of temperature dependence of thulium cross sections on thulium-doped fiber laser operation", Proc. SPIE 12400, Fiber Lasers XX: Technology and Systems, 124000A (8 March 2023); https://doi.org/10.1117/12.2647852

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