A monolithic 2042nm hybrid pumped gain-switched thulium-doped fiber laser

Junjie Ren; Yunfeng Qi; Zhenxing He; Ting Yu; Xisheng Ye

doi:10.1117/12.3023284

18 March 2024 A monolithic 2042nm hybrid pumped gain-switched thulium-doped fiber laser

Junjie Ren, Yunfeng Qi, Zhenxing He, Ting Yu, Xisheng Ye

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131042Z (2024) https://doi.org/10.1117/12.3023284
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

We reported a hybrid pumped gain-switched thulium-doped fiber laser (HP-GS-TDFL) at 2042nm in an all-fiber structure. The resonator consists of 0.7m 10/130 single-mode (SM) TDF with a pair of fiber Bragg gratings (FBG) at 2042nm, pumped by a 1550nm nanosecond fiber laser and a 793nm continuous wave (CW) laser diode (LD). Under 1550nm pulse single pump configurations, the GS-TDFL does not reach the lasing threshold at 50kHz and produces <1 μJ energy at 25kHz. Under hybrid pump configurations, the GS-TDFL produces 26μJ energy with 161ns pulse durations at 50kHz and 38μJ energy with 103ns pulse durations at 25kHz. The signal-to-noise ratio (SNR) of the output spectrum at 50kHz is 47dB. The experiment results show that pulses with higher peak power and shorter durations can be obtained by applying the hybrid pump scheme.

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

Citation Download Citation

Junjie Ren, Yunfeng Qi, Zhenxing He, Ting Yu, and Xisheng Ye "A monolithic 2042nm hybrid pumped gain-switched thulium-doped fiber laser", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131042Z (18 March 2024); https://doi.org/10.1117/12.3023284

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