Low threshold fiber taper coupled rare earth ion-doped chalcogenide microsphere laser

被引：0

作者：

李超然 ^{[1
]}

戴世勋 ^{[1
]}

张勤远 ^{[2
]}

沈祥 ^{[1
]}

王训四 ^{[1
]}

张培晴 ^{[1
]}

路来伟 ^{[1
]}

吴越豪 ^{[1
]}

吕社钦 ^{[1
]}

机构：

[1] Laboratory of Infrared Material and Devices, Advanced Technology Reasearch Institute, Ningbo University

[2] State Key Laboratory of Luminescence Materials and Devices and Institute of Optical Communication Materials,South China University of Technology

来源：

Chinese Physics B | 2015年 / 04期

基金：

中国国家自然科学基金;

关键词：

chalcogenide; microspheres; laser; whispering gallery modes;

D O I：

暂无

中图分类号：

TN248 [激光器];

学科分类号：

0803 ; 080401 ; 080901 ;

摘要：

We report the applications of a low-cost and environmentally friendly chalcogenide glass, 75 Ge S2-15Ga2S3-10 Cs I,in building active microsphere laser oscillators. A silica fiber taper is used as the coupling mechanism. With an 808-nm laser diode as a pump source, we show that a high-Q(～ 6×104) laser mode could be obtained from a 75-μm diameter microsphere that is coupled with a 1.77-μm waist-diameter fiber taper. The threshold of the incident pump power is1.39 m W, which is considerably lower than those of previously reported free-space coupled chalcogenide microsphere lasers. We also note an apparent enhancement in laser power generated from this chalcogenide microsphere laser.

引用

页码：241 / 244

页数：4