Broadly tunable continuous-wave Tm,Ho:SrF2 and Tm,Ho:BaF2 lasers

被引：1

作者：

Veselsky, Karel ^{[1
,2
]}

Loiko, Pavel ^{[1
]}

Eremeev, Kirill ^{[1
]}

Benayad, Abdelmjid ^{[1
]}

Braud, Alain ^{[1
]}

Sulc, Jan ^{[2
]}

Jelinkova, Helena ^{[2
]}

Camy, Patrice ^{[1
]}

机构：

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

[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Brehova 7, Prague 11519, Czech Republic

来源：

OPTICS LETTERS | 2024年 / 49卷 / 19期

关键词：

ENERGY-TRANSFER; GROWTH; CAF2; TM;

D O I：

10.1364/OL.532598

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, room-temperature continuous-wave laser operation of Tm3+,Ho3+-codoped barium and strontium fluoride crystals at similar to 2.1 mu m. The 3 at.% Tm, 0.5 at.% Ho:BaF2 laser generated 160 mW at 2073 nm with a slope efficiency of 31.0% and a laser threshold of 43 mW. The continuous wavelength tuning of this laser from 2010 to 2090 nm (tuning range, 80 nm) was demonstrated. The spectroscopic properties of Tm,Ho:SrF2 and Tm,Ho:Ba(2 )crystals were also determined, showing enhanced Tm3+ -> Ho3+ energy transfer in rare-earth clusters. For Ho3+ ions in BaF2, the stimulated-emission cross section is 0.40 x 10(-20) cm(2) at 2044 nm, and the thermal equilibrium luminescence lifetime is as long as 14.1 ms. .

引用

页码：5631 / 5634

页数：4

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