Fiber coupled high count-rate single-photon generated from InAs quantum dots  

作　　者：Yao Chen Shulun Li Xiangjun Shang Xiangbin Su Huiming Hao Jiaxin Shen Yu Zhang Haiqiao Ni Ying Ding Zhichuan Niu 

机构地区：[1]State Key Laboratory of Photon-Technology in Western China Energy,Northwest University,Xi’an 710069,China [2]Institute of Photonics&Photon-Technology,Northwest University,Xi'an 710069,China [3]State Key Laboratory for Superlattice and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China [4]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [5]Beijing Academy of Quantum Information Sciences,Beijing 100193,China [6]School of Microelectronics,Xidian University and The State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology,Xi’an 710071,China

出　　处：《Journal of Semiconductors》2021年第7期83-87,共5页半导体学报（英文版）

基　　金：supported by the Key-Area Research and Development Program of Guangdong Province(Grant No.2018B030329001);the National Key Technologies R&D Program of China(2018YFA0306101);The Scientific Instrument Developing Project of the Chinese Academy of Science(YJKYYQ20170032);the National Natural Science Foundation of China(61505196);the Program of Beijing Academy of Quantum Information Sciences(Grant No.Y18G01).

摘　　要：In this work,we achieve high count-rate single-photon output in single-mode(SM)optical fiber.Epitaxial and dilute InAs/GaAs quantum dots(QDs)are embedded in a GaAs/AlGaAs distributed Bragg reflector(DBR)with a micro-pillar cavity,so as to improve their light emission extraction in the vertical direction,thereby enhancing the optical SM fiber’s collection capabil-ity(numerical aperture:0.13).By tuning the temperature precisely to make the quantum dot exciton emission resonant to the micro-pillar cavity mode(Q~1800),we achieve a fiber-output single-photon count rate as high as 4.73×10^(6) counts per second,with the second-order auto-correlation g2(0)remaining at 0.08.

关 键 词：single-photon source fiber-output high count rate 

分 类 号：O471.1[理学—半导体物理]