Spectroscopy and 2.8 μm laser operation of disordered Er:CLNGG crystals

被引：3

作者：

Normani, Simone ^{[1
]}

Loiko, Pavel ^{[1
]}

Pan, Zhongben ^{[2
]}

Dunina, Elena ^{[3
]}

Fomicheva, Liudmila ^{[4
]}

Kornienko, Alexey ^{[3
]}

Braud, Alain ^{[1
]}

Chen, Weidong ^{[5
]}

Griebner, Uwe ^{[5
]}

Petrov, Valentin ^{[5
]}

Camy, Patrice ^{[1
]}

机构：

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

[2] Shandong Univ, Sch Informat Sci & Engn, 72 Binhai Rd, Qingdao 266237, Peoples R China

[3] Vitebsk State Technol Univ, 72 Moskovskaya Ave, Vitebsk 210035, BELARUS

[4] Belarusian State Univ Informat & Radioelect, 6 Brovka St, Minsk 220027, BELARUS

[5] Max Born Inst Nonlinear Opt & Short Pulse Spect, Max-Born-Str 2a, D-12489 Berlin, Germany

来源：

OPTICS LETTERS | 2023年 / 48卷 / 10期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1364/OL.489160

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the first, to the best of our knowledge, laser operation on the I-4(11/2) -> I-4(13/2) transition of erbium-doped disordered calcium lithium niobium gallium garnet (CLNGG) crystals with broadband mid-infrared emission properties. A 41.4 at.% Er:CLNGG continuous-wave laser generated 292 mW at 2.80 mu m with 23.3% slope efficiency and a laser threshold of 209 mW. Er3+ ions in CLNGG feature inhomogeneously broadened spectral bands (sigma(SE) = 1.79 x 10(-21) cm(2) at 2.79 mu m; emission bandwidth, 27.5 nm), a large luminescence branching ratio for the I-4(11/2) -> I-4(13/2) transition of 17.9%, and a favorable ratio of the I-4(11/2) and I-4(13/2) lifetimes, exhibiting values of 0.34 ms and 1.17 ms (for 41.4 at.% Er3+), respectively. (c) 2023 Optica Publishing Group

引用

页码：2567 / 2570

页数：4

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