Research on 1050 nm high-power narrow linewidth fiber laser based on tapered ytterbium-doped fiber

Yun Ye; Xiaolin Wang; Yanbin Wang; Xuanfeng Zhou; Chenglong Jiang; Defeng Zhang; Xiaoming Xi; Xiaojun Xu

doi:10.1117/12.3056801

22 January 2025 Research on 1050 nm high-power narrow linewidth fiber laser based on tapered ytterbium-doped fiber

Yun Ye, Xiaolin Wang, Yanbin Wang, Xuanfeng Zhou, Chenglong Jiang, Defeng Zhang, Xiaoming Xi, Xiaojun Xu

Author Affiliations +

Proceedings Volume 13520, 7th Optics Young Scientist Summit (OYSS 2024); 135200G (2025) https://doi.org/10.1117/12.3056801
Event: Seventh Optics Young Scientist Summit (OYSS 2024), 2024, Nanjing, China

Abstract

Compared to conventional uniform fibers, long tapered Yb-doped fibers (T-YDF) have outstanding potential to alleviate the detrimental nonlinear effects due to their unique mode field characteristics along the length direction. In this work, a T-YDF-based short-wavelength narrow linewidth monolithic fiber amplifier was constructed through one-stage MOPA configuration. The fiber amplifier emits at the central wavelength of ~1050 nm, and the output lasing performance is carefully studied for different pumping scheme. The experimental results indicated that compared with the co-pumping scheme, the counter-pump one holds a better property involving spectral broadening suppression, SRS suppression and TMI threshold enhancement in the 1050 nm narrow-linewidth fiber lasers. As a result, an output power of 3.56 kW was achieved with a slope efficiency of ~83.6% by adopting bidirectional pumping scheme. At the maximum lasing power, the 3dB spectral linewidth was measured ~0.58 nm, and the SRS suppression ratio was greater than ~27.3dB. This work could offer a promising approach for extending the operating wavelength of high-power narrow linewidth fiber lasers.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yun Ye, Xiaolin Wang, Yanbin Wang, Xuanfeng Zhou, Chenglong Jiang, Defeng Zhang, Xiaoming Xi, and Xiaojun Xu "Research on 1050 nm high-power narrow linewidth fiber laser based on tapered ytterbium-doped fiber", Proc. SPIE 13520, 7th Optics Young Scientist Summit (OYSS 2024), 135200G (22 January 2025); https://doi.org/10.1117/12.3056801

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