Er3+-doped fluorotellurite glass microsphere lasers with ultra-low threshold

被引：5

作者：

Ding, Haizhen ^{[1
,2
,3
]}

Huang, Qing ^{[1
,2
,3
]}

Bai, Shengchuang ^{[1
,2
,3
]}

Zhang, Mingming ^{[4
]}

Yang, Peilong ^{[1
,2
,3
]}

Zhao, Ruwei ^{[1
,2
,3
]}

Wang, Xunsi ^{[1
,2
,3
]}

Dai, Shixun ^{[1
,2
,3
]}

Nie, Qiuhua ^{[1
,2
,3
]}

机构：

[1] Ningbo Univ, Adv Technol Res Inst, Coll Informat Sci & Engn, Lab Infrared Mat & Devices, Ningbo 315211, Peoples R China

[2] Key Lab Photoelect Mat & Devices Zhejiang Prov, Ningbo 315211, Peoples R China

[3] Engn Res Ctr Adv Infrared Photoelect Mat & Devices, Ningbo 315211, Peoples R China

[4] Jiangsu Univ Sci & Technol, Sch Sci, Zhenjiang 212100, Peoples R China

来源：

INFRARED PHYSICS & TECHNOLOGY | 2022年 / 125卷

基金：

中国国家自然科学基金;

关键词：

Fluorotellurite glass; Microsphere lasers; Temperature sensing; C plus L band; Whispering gallery mode; MICROSTRUCTURED FIBERS; BAND; LUMINESCENCE; SCATTERING; ERBIUM;

D O I：

10.1016/j.infrared.2022.104294

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Er3+-doped tellurite glass microlasers have great potential in generating lasers in the communication band. However, the lasing threshold is generally high due to the influence of the hydroxyl groups of traditional tellurite glasses. In this work, we firstly demonstrate an Er3+-doped fluorotellurite glass microsphere laser with low lasing threshold. The lowest threshold power of 0.16 mW is experimentally obtained at similar to 1610 nm, which is approximately an order of magnitude lower than other Er3+-doped tellurite glass microlasers. Typical Q-factor of the fluorotellurite glass microspheres can reach 10(5). As the pump power increases, the single-mode and multimode lasers appear in the L- and C-bands successively. We also demonstrate that the microsphere lasers can be thermally tuned with a temperature sensitivity of 30 pm/degrees C. The experimental results indicate that the Er3+-doped fluorotellurite glass microsphere lasers can serve as a small photonic element in the new field of low-threshold, compact infrared laser sources and temperature sensing.

引用

页数：5