3.42 µm lasing in heavily-erbium-doped fluoride fibers
Maes F, Stihler C, Pleau LP, Fortin V, Limpert J, Bernier M, Vallee R (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 27
Pages Range: 2170-2183
Journal Issue: 3
DOI: 10.1364/OE.27.002170
Abstract
In this paper, we investigate laser emission at 3.4 µm in heavily-erbium-doped fluoride fibers using dual-wavelength pumping. To this extent, a monolithic 7 mol% erbium-doped fluoride fiber laser bounded by intracore fiber Bragg gratings at 3.42 µm is used to demonstrate a record efficiency of 38.6 % with respect to the 1976 nm pump. Through numerical modeling, we show that similar laser performances at 3.4 µm can be expected in fluoride fibers with erbium concentrations ranging between 1 – 7 mol%, although power scaling should rely on lightly-doped fibers to mitigate the heat load. Moreover, this work studies transverse mode-beating of the 1976 nm core pump and its role in the generation of a periodic luminescent grating and in the trapping of excitation in the metastable energy levels of the erbium system. Finally, we also report on the bistability of the 3.42 µm output power of the 7 mol% erbium-doped fluoride fiber laser.
Involved external institutions
Canada (CA)
Germany (DE)How to cite
APA:
Maes, F., Stihler, C., Pleau, L.-P., Fortin, V., Limpert, J., Bernier, M., & Vallee, R. (2019). 3.42 µm lasing in heavily-erbium-doped fluoride fibers. Optics Express, 27(3), 2170-2183. https://doi.org/10.1364/OE.27.002170
MLA:
Maes, Frederic, et al. "3.42 µm lasing in heavily-erbium-doped fluoride fibers." Optics Express 27.3 (2019): 2170-2183.
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