Mid-infrared laser operation of Er3+-doped BaF2 and (Sr,Ba)F2 crystals

被引：5

作者：

Normani, Simone ^{[1
]}

Basyrova, Liza ^{[1
]}

Loiko, Pavel ^{[1
]}

Benayad, Abdelmjid ^{[1
]}

Braud, Alain ^{[1
]}

Hideur, Ammar ^{[2
]}

Camy, Patrice ^{[1
]}

机构：

[1] Univ Caen, Ctr Rech Ions Mat & Photon CIMAP, CNRS, UMR 6252,CEA,ENSICAEN, 6 Blvd Marechal Juin, F-14050 Caen 4, France

[2] Normandie Univ, Univ Rouen, CNRS, UMR6614,INSA,CORIA, Ave Univ,BP 12, F-76801 St Etienne Du Rouvray, France

来源：

OPTICS LETTERS | 2023年 / 48卷 / 02期

关键词：

SINGLE-CRYSTAL; PERFORMANCE;

D O I：

10.1364/OL.479858

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the first, to our knowledge, mid-infrared laser operation of two Er3+-doped barium-containing fluorite -type crystals, BaF2 and (Sr,Ba)F2, featuring a low-phonon energy behavior. A continuous wave 4.9 at.% Er:(Sr,Ba)F2 laser generated 519 mW at 2.79 mu m with a slope efficiency of 25.0% and a laser threshold of 27 mW. The vibronic and spectroscopic properties of these crystals are determined. The phonon energy of (Sr,Ba)F2 is as low as 267 cm-1. The Er3+ ions in this crystal feature a broadband emission owing to the 4I11/2 -> 4I13/2 transition and a long luminescence lifetime of the 4I11/2 level (10.6 ms) making this compound promising for low-threshold, broadly tunable, and pulsed 2.8-mu m lasers. (c) 2023 Optica Publishing Group

引用

页码：431 / 434

页数：4

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