Transverse mode instability thresholds in fiber laser oscillators

Liang Dong; Michalis N. Zervas

doi:10.1117/12.2691771

12 March 2024 Transverse mode instability thresholds in fiber laser oscillators

Liang Dong, Michalis N. Zervas

Proceedings Volume 12865, Fiber Lasers XXI: Technology and Systems; 1286502 (2024) https://doi.org/10.1117/12.2691771
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

A first theoretical study of Transverse Mode Instability (TMI) in oscillators based on a Stimulated Thermal Rayleigh Scattering (STRS) model is conducted. Higher Order Mode (HOM) lasing is found to happen at high powers. Further Fundamental Mode (FM) growth is limited once HOM lasing takes place, with further increase of pump power mostly going to HOM growth, a fundamentally different phenomenon from that in fiber amplifiers. TMI thresholds defined as when the HOM lasing condition is met is studied. The results are consistent with the measured TMI thresholds and their dependence on pumping configurations and pump wavelengths.

Conference Presentation

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

Citation Download Citation

Liang Dong and Michalis N. Zervas "Transverse mode instability thresholds in fiber laser oscillators", Proc. SPIE 12865, Fiber Lasers XXI: Technology and Systems, 1286502 (12 March 2024); https://doi.org/10.1117/12.2691771

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