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
收藏
页码：431 / 434
页数：4
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