Self-sweeping Er-doped ring fiber laser

N. R. Poddubrovskii; I. A. Lobach; S. I. Kablukov

doi:10.1117/12.2602684

9 October 2021 Self-sweeping Er-doped ring fiber laser

N. R. Poddubrovskii, I. A. Lobach, S. I. Kablukov

Proceedings Volume 11890, Advanced Lasers, High-Power Lasers, and Applications XII; 118900F (2021) https://doi.org/10.1117/12.2602684
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

We present results on the first demonstration of self-sweeping effect in a ring Er-doped fiber laser. Reverse self-sweeping (with decreasing wavelength) in a range of ~0.1 nm was obtained. Typical sweeping rate was 4 pm/s, which is sufficiently slower as compared with earlier reported fiber lasers. Dual longitudinal mode self-sweeping (similar to reported earlier in linear cavity Er-doped fiber laser) is obtained. The laser generates sequentially long overlapping pulses. Frequency of each subsequent pulse increases by one inter-mode spacing. However, the typical duration of dual-mode operation is ~10 ms, which is one order longer than in previous works. We demonstrated that increase in pump power causes deceleration of sweeping and elongation of dual-mode pulses up to 500 ms. The developed source can be used for fiber sensor interrogation.

Conference Presentation

Citation Download Citation

N. R. Poddubrovskii, I. A. Lobach, and S. I. Kablukov "Self-sweeping Er-doped ring fiber laser", Proc. SPIE 11890, Advanced Lasers, High-Power Lasers, and Applications XII, 118900F (9 October 2021); https://doi.org/10.1117/12.2602684

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