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. .
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收藏
页码：5631 / 5634
页数：4
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