Presentation
5 March 2021 Modeling Er/Yb fiber laser behaviors at high powers
Author Affiliations +
Abstract
Conventional models of Er/Yb co-doped fibers assume all ytterbium ions are equally involved in the energy transfer with erbium ions, governed by a singular transfer rate. This would predict output power clamping once ytterbium parasitic lasing starts, contrary to the observations that the output continued to grow albeit at a slower rate. One study explained this using elevated temperature at high powers. Our study, however, shows that elevated temperature and mode-dependent effects only play insignificant roles. A new model is developed based on the existence of isolated ytterbium ions, which can explain all the observed experimental behaviors.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Liang Dong, Turghun Matniyaz, Monica T. Kalichevsky-Dong, Johan Nilsson, and Yoonchan Jeong "Modeling Er/Yb fiber laser behaviors at high powers", Proc. SPIE 11665, Fiber Lasers XVIII: Technology and Systems, 116650N (5 March 2021); https://doi.org/10.1117/12.2573792
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KEYWORDS
Fiber lasers

Ions

Ytterbium

Energy transfer

Erbium

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