摘要
Gas sensing for measurement of gas components, concentrations, and other parameters plays an important role in many fields. In this Letter, a micro-ring resonator laser used for gas sensing is experimentally demonstrated. The multi-quantumwells micro-ring laser based on whispering-gallery modes with an annular resonator and an output waveguide was fabricated. A single-mode laser with a wavelength of 1746.4 nm was fabricated for the first time, to the best of our knowledge,experimentally. The output power of 1.65 m W under 40 m A injection current was obtained with a side-mode suppression ratio over 33 d B.
作者
Fangyuan Meng
Hongyan Yu
Xuliang Zhou
Yajie Li
Mengqi Wang
Wenyu Yang
Weixi Chen
Yejin Zhang
Jiaoqing Pan
孟芳媛;于红艳;周旭亮;李亚节;王梦琦;杨文宇;陈娓兮;张冶金;潘教青(Key Laboratory of Semiconductor Materials Science,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices,Beijing 100083,China;School of Physics,Peking University,Beijing 100871,China)
基金
supported by the National Key Research and Development Project (Nos. 2017YFB0405300 and 2018YFA0209001)
National Natural Science Foundation of China (NSFC) (Nos. 61934007 and 61974141)
Beijing MunicipalScienceandTechnologyProject(Nos. Z191100004819011 and 4182064)。
