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11 March 2020 Suppressing fiber tip failure: On the road to 100 W-level 3-μm fiber lasers (Conference Presentation)
Frédéric Maes, Yigit Ozan Aydin, Thomas Poulin, Souleymane Toubou Bah, Vincent Fortin, Réal Vallée, Martin Bernier
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Proceedings Volume 11260, Fiber Lasers XVII: Technology and Systems; 112601O (2020) https://doi.org/10.1117/12.2544504
Event: SPIE LASE, 2020, San Francisco, California, United States
Abstract
We report on the use of OH diffusion barrier coatings to suppress fiber tip degradation in high-power 3 μm fiber lasers. To this extent, silicon nitride thin-films are sputtered on the endface of a 20 W erbium-doped fluoride fiber laser at 2.83 μm. By monitoring the temperature evolution of the output fiber tip over a 24 hour time period, we validate the effectiveness of silicon nitride thin films in mitigating fiber tip degradation. These results, along with previous demonstrations, underline the potential of 3 μm fiber lasers to reach 100 W of output power in the near future.
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Frédéric Maes, Yigit Ozan Aydin, Thomas Poulin, Souleymane Toubou Bah, Vincent Fortin, Réal Vallée, and Martin Bernier "Suppressing fiber tip failure: On the road to 100 W-level 3-μm fiber lasers (Conference Presentation)", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112601O (11 March 2020); https://doi.org/10.1117/12.2544504
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KEYWORDS
Fiber lasers
Roads
Diffusion
Semiconductor lasers
Silicon
Silicon films
Thin film coatings
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