2.9 µm lasing from a Ho³⁺/Pr³⁺ co-doped AlF₃-based glass fiber pumped by a 1150 nm laser

Wang, Shunbin, Zhang, Jiquan, Xu, Niannian, Jia, Shijie, Brambilla, G. and Wang, Pengfei (2020) 2.9 µm lasing from a Ho³⁺/Pr³⁺ co-doped AlF₃-based glass fiber pumped by a 1150 nm laser. Optics Letters, 45 (5), 1216-1219. (doi:10.1364/OL.384216).

Abstract

Ho³⁺/Pr³⁺ co-doped AlF₃-based glass fibers were fabricated by using a rod-in-tube method based on the matrix glass composition of AlF₃-BaF₂-CaF₂-YF₃-SrF₂-MgF₂-LiF-ZrF₄-PbF₂. Under the pump of a 1150 mW Raman fiber laser, a 2.9 µm laser was observed in a 19 cm long Ho³⁺/Pr³⁺ co-doped AlF₃-based glass fiber with an output power of 173 mW and a slope efficiency of 10.4%. Ho³⁺/Pr³⁺ co-doped AlF₃-based glasses were fabricated to investigate the deactivation effects of Pr³⁺ ions on the Ho³⁺:⁵I₇ level. Our results showed that the Ho³⁺/Pr³⁺ co-doped AlF₃-based glass fibers are potential gain media for ~2.9µm lasers.

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Contributors

Author: G. Brambilla

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