Revising power scaling limits of diffraction-limited fiber amplifiers

Liang Dong; John Ballato; Joseph Kolis

doi:10.1117/12.2691020

12 March 2024 Revising power scaling limits of diffraction-limited fiber amplifiers

Liang Dong, John Ballato, Joseph Kolis

Proceedings Volume 12865, Fiber Lasers XXI: Technology and Systems; 128650H (2024) https://doi.org/10.1117/12.2691020
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

An empirical TMI threshold formula is derived based on a recently developed model and used to analyze the power-scaling performance of ytterbium-doped silica glass and YAG (Y₃Al₅O₁₂) and Lutetia (Lu₂O₃) single-crystalline fiber amplifiers. Overall, the single-crystalline fiber lasers are found to scale potentially to higher average powers mostly due to their higher thermal conductivities compared to silica glass. This work serves as a useful extension to earlier works and shines significant new light on optimal fiber and amplifier designs for maximum average output power with TMI considered.

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

Citation Download Citation

Liang Dong, John Ballato, and Joseph Kolis "Revising power scaling limits of diffraction-limited fiber amplifiers", Proc. SPIE 12865, Fiber Lasers XXI: Technology and Systems, 128650H (12 March 2024); https://doi.org/10.1117/12.2691020

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