Efficient ∼4 µm emission from Pr3+/Yb3+ co-doped fluoroindate glass

Efficient ∼4 µm emission from Pr3+/Yb3+ co-doped fluoroindate glass

Pr3+/Yb3+ co-doped fluoroindate (InF3) glasses were prepared by using a traditional melt-quenching method in dry N2 atmosphere. Pumped by a 976 or 1570 nm laser diode, efficient emissions at ∼4µm were obtained from the Pr3+/Yb3+ co-doped glasses, which could be ascribed to the transition 3F4→3H6 of...

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Veröffentlicht in:Optics letters 2021-11, Vol.46 (22), p.5607-5610
Hauptverfasser: He, Huiyu, Jia, Zhixu, Ohishi, Yasutake, Qin, Weiping, Qin, Guanshi
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Sprache:eng ; jpn
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Broadband
Holmium
Infrared lasers
Semiconductor lasers
Stimulated emission
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container_end_page 5610
container_issue 22
container_start_page 5607
container_title Optics letters
container_volume 46
creator He, Huiyu
Jia, Zhixu
Ohishi, Yasutake
Qin, Weiping
Qin, Guanshi
description Pr3+/Yb3+ co-doped fluoroindate (InF3) glasses were prepared by using a traditional melt-quenching method in dry N2 atmosphere. Pumped by a 976 or 1570 nm laser diode, efficient emissions at ∼4µm were obtained from the Pr3+/Yb3+ co-doped glasses, which could be ascribed to the transition 3F4→3H6 of Pr3+ ions. The relative stimulated emission cross section was calculated to be ∼1.44×10−24m2 at 4 µm, which was ∼4.2 times larger than that of transition Ho3+:5I5→5I6 (3.4×10−25m2). In addition, combined with transitions 1G4→3F3 and 1G4→3F4 of Pr3+ ions, ultra-broadband emission ranging from 2.7 to 4.2 µm was also obtained. Our results indicate that Pr3+/Yb3+:InF3 glasses could be used to develop efficient ∼4µm lasers and widely tunable mid-infrared lasers.
doi_str_mv 10.1364/OL.440635
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subjects Broadband
Holmium
Infrared lasers
Semiconductor lasers
Stimulated emission
title Efficient ∼4 µm emission from Pr3+/Yb3+ co-doped fluoroindate glass
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