https://doi.org/10.1051/epjconf/202430702045
Amplification at 2.3-µm in 1.9-µm thulium-doped silica fiber laser
a Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United Kingdom
b Naval Research Laboratory, 4555 Overlook Ave. SW, Washington, DC 20375, USA
c URF, 6411 Ivy Lane Suite 110, Greenbelt, MD 20770
d Present address: Central Glass & Ceramic Research Institute, Council of Scientific & Industrial Research, Kolkata, India
Published online: 18 October 2024
A high-power 1.9-µm Tm3+-doped silica fiber laser generates 7.3-dB of gain at 2.3 µm when cladding- pumped with 207 W of power at 793 nm. We attribute the 2.3-µm gain to the transition 3H4 → 3H5 of Tm3+.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
