2.3 µm lasing in Tm3+ doped fluoroaluminate glass fibers with an upconversion pumping scheme

Tm3+ doped fluoroaluminate glass fibers are fabricated by using a rod-in-tube method based on AlF3-BaF2-YF3-MgF2-PbF2 glasses. By using a 1400/1570 nm dual-wavelength upconversion pump technique, lasing at ∼2.3 µm is obtained from a 2.3 m long Tm3+ doped fluoroaluminate glass fiber. The measured max...

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Bibliographic Details
Published in:Optical materials express 2023-03, Vol.13 (3), p.764
Main Authors: Wang, Junjie, Jia, Zhixu, Mei, Yuting, Zhang, Chuanze, Wang, Fangning, Sun, Yan, Ohishi, Yasutake, Qin, Weiping, Qin, Guanshi
Format: Article
Language:English
Subjects:
Aluminum fluorides
Barium fluorides
Fiber lasers
Glass fibers
Lasing
Magnesium fluorides
Upconversion
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Summary:Tm3+ doped fluoroaluminate glass fibers are fabricated by using a rod-in-tube method based on AlF3-BaF2-YF3-MgF2-PbF2 glasses. By using a 1400/1570 nm dual-wavelength upconversion pump technique, lasing at ∼2.3 µm is obtained from a 2.3 m long Tm3+ doped fluoroaluminate glass fiber. The measured maximum unsaturated output power is ∼111 mW for a pump power of 1.5/0.14 W at 1400/1570 nm, and the corresponding slope efficiency is ∼11%. The effect of the gain fiber length on lasing at ∼2.3 µm is also investigated. Our results indicate that Tm3+ doped fluoroaluminate glass fibers are promising gain media for constructing ∼2.3 µm fiber lasers.
ISSN:2159-3930
DOI:10.1364/OME.482684