铥
光纤激光器
材料科学
光学
兴奋剂
波长
激光器
光电子学
连续波
物理
作者
Christophe Louot,Félix Sanson,Arnaud Motard,Thierry Ibach,Inka Manek-Hönninger,Antoine Berrou,Nicolas Dalloz,Thierry Robin,Benoît Cadier,Anne Hildenbrand-Dhollande
出处
期刊:Photonics
[MDPI AG]
日期:2024-03-09
卷期号:11 (3): 246-246
标识
DOI:10.3390/photonics11030246
摘要
We present a thulium-doped single-oscillator monolithic fiber laser emitting successively at three wavelengths, especially at unusual long wavelengths as 2.09 µm and even at 2.12 µm. The 793 nm core absorption of 8.42 dB/m allows for achieving a slope efficiency higher than 43% both at 1.94 µm and 2.09 µm. The operation of the laser at 1.94 µm, 2.09 µm, and 2.12 µm is compared by using different fiber Bragg gratings to push the limit of thulium ions emission above 2.05 µm. This is the first demonstration of emission exceeding wavelengths of 2.1 µm of an only thulium-doped fiber laser, to the best of our knowledge.
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