Influence of FBG quality on yellow Dy-doped ZBLAN fiber lasers performance

Michelangelo Federico; Federica Poli

doi:10.1117/12.3022476

20 June 2024 Influence of FBG quality on yellow Dy-doped ZBLAN fiber lasers performance

Proceedings Volume 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV; 130030E (2024) https://doi.org/10.1117/12.3022476
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

MIR cascade lasing is a solution to mitigate the negative impact of excited state absorption on the performance of yellow lasers made of ZBLAN fibers doped with Dysprosium. A low-loss cavity with nearly ideal mirror reflectivity in both yellow and MIR wavelength ranges yields optimal results, but fabricating FBGs with extremely high reflectivity remains challenging in fluoride glasses. In this work, we use our matrix-based model to provide insights into the influence of FBGs quality on the performance of yellow Dy-doped ZBLAN FLs with MIR cascade lasing. Results reveal that reducing the front mirror reflectivity at the yellow wavelength lowers the laser slope efficiency, whereas decreasing the reflectivity of the mirrors constituting the cavity for the MIR emission leads to an increase in the threshold.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Michelangelo Federico and Federica Poli "Influence of FBG quality on yellow Dy-doped ZBLAN fiber lasers performance", Proc. SPIE 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV, 130030E (20 June 2024); https://doi.org/10.1117/12.3022476

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