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

Junjie Wang, Zhixu Jia, Yuting Mei, Chuanze Zhang, Fangning Wang, Yan Sun, Yasutake Ohishi, Weiping Qin, Guanshi Qin

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

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 ∼111mW 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.

Original languageEnglish
Pages (from-to)764-770
Number of pages7
JournalOptical Materials Express
Volume13
Issue number3
DOIs
StatePublished - 1 Mar 2023
Externally publishedYes

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