Computational design of a double-clad radiation-balanced fiber laser

Xiaoxing Xia; Anupum Pant; Chaman Gupta; E. James Davis; Peter J. Pauzauskie

doi:10.1117/12.2583392

4 May 2021 Computational design of a double-clad radiation-balanced fiber laser

Xiaoxing Xia, Anupum Pant, Chaman Gupta, E. James Davis, Peter J. Pauzauskie

Proceedings Volume 11702, Photonic Heat Engines: Science and Applications III; 117020S (2021) https://doi.org/10.1117/12.2583392
Event: SPIE OPTO, 2021, Online Only

Abstract

We report a new radiation-balanced laser design of a cladding-pumped double-clad fiber laser based on Yb-doped silica. The single-mode glass core has a high Yb doping level for lasing, whereas the inner cladding is cooling- grade silica glass with a low Yb concentration. Multimode pumping propagates along the inner cladding, scaling up the signal and extracting heat generated inside the core due to quantum defects and concentration quenching. Both analytical and numerical methods are used to calculate the electric-field and temperature distribution in the fiber. The core temperature is reduced significantly due to anti-Stokes cooling of the inner cladding.

Conference Presentation

Citation Download Citation

Xiaoxing Xia, Anupum Pant, Chaman Gupta, E. James Davis, and Peter J. Pauzauskie "Computational design of a double-clad radiation-balanced fiber laser", Proc. SPIE 11702, Photonic Heat Engines: Science and Applications III, 117020S (4 May 2021); https://doi.org/10.1117/12.2583392

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