7-Rod-Core Thulium-Doped Fiber for Enhanced Fiber Laser Cooling
Optics
2026-03-23 v1
Abstract
Structured-core thulium-doped fibers were developed to reduce heat load, enable shorter-wavelength operation, and achieve a pedestal-free design. In a proof-of-principle experiment, laser slope efficiencies of 52% at 1907 nm and 54% at 1940 nm were achieved with respect to absorbed power.
Cite
@article{arxiv.2603.19916,
title = {7-Rod-Core Thulium-Doped Fiber for Enhanced Fiber Laser Cooling},
author = {Ivo Bartoň and Jan Aubrecht and Bara Švejkarová and Jan Pokorný and Michal Kamrádek and Ondřej Podrazký and Petr Vař'ak and Ivan Kaš'ik and Martin Grábner and Pavel Peterka},
journal= {arXiv preprint arXiv:2603.19916},
year = {2026}
}
Comments
7 pages, 7 Figures, 1 Table