7.2W 3.5μm Er-doped ZBLAN fiber laser with optimized pump wavelength

Lu Zhang; Shijie Fu; Quan Sheng; Wei Shi; Jianquan Yao

doi:10.1117/12.2686307

27 November 2023 7.2W 3.5μm Er-doped ZBLAN fiber laser with optimized pump wavelength

Lu Zhang, Shijie Fu, Quan Sheng, Wei Shi, Jianquan Yao

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 127600U (2023) https://doi.org/10.1117/12.2686307
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

In this work, the effect of 2 μm core pump wavelength on the quenching behavior of 3.5 μm Er-doped ZBLAN fiber laser are experimentally investigated in detail. Pumped at an optimized wavelength of 1990 nm, a maximum 3.47 μm output power of approximately 7.2 W was obtained with 6.5 m Er-doped ZBLAN fiber, where the slope efficiency (with respect of launched 1990 nm pump power) and overall optical efficiency are 36% and 26.5%, respectively. Numerical simulation was implemented to reproduce the experimental results and determine the cross section of ESA via a theoretical fitting.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Lu Zhang, Shijie Fu, Quan Sheng, Wei Shi, and Jianquan Yao "7.2W 3.5μm Er-doped ZBLAN fiber laser with optimized pump wavelength", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 127600U (27 November 2023); https://doi.org/10.1117/12.2686307

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