Photonics Research, Volume. 10, Issue 10, A135(2022)

Silicon photonic devices for scalable quantum information applications

Lantian Feng1,2,3, Ming Zhang4, Jianwei Wang5,6, Xiaoqi Zhou7, Xiaogang Qiang8, Guangcan Guo1,2,3, and Xifeng Ren1,2,3、*
Author Affiliations
  • 1CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
  • 2CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
  • 3Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, China
  • 4State Key Laboratory for Modern Optical Instrumentation, Centre for Optical and Electromagnetic Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
  • 5State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
  • 6Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter, Peking University, Bejing 100871, China
  • 7School of Physics and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510000, China
  • 8National Innovation Institute of Defense Technology, AMS, Beijing 100071, China
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    With high integration density and excellent optical properties, silicon photonics is becoming a promising platform for complete integration and large-scale optical quantum information processing. Scalable quantum information applications need photon generation and detection to be integrated on the same chip, and we have seen that various devices on the silicon photonic chip have been developed for this goal. This paper reviews the relevant research results and state-of-the-art technologies on the silicon photonic chip for scalable quantum applications. Despite the shortcomings, the properties of some components have already met the requirements for further expansion. Furthermore, we point out the challenges ahead and future research directions for on-chip scalable quantum information applications.


    Quantum information science is a new frontier subject combining quantum mechanics and information science. The quantum nature of particle superposition, entanglement, and measurement is applicable for more efficient information processing, computation, transmission, and storage. The development of quantum information industry promises more powerful computing power, high security information communications, and a deeper understanding of nature. It is expected to resolve numerous scientific problems that are difficult to be effectively solved by existing classical techniques. For example, absolutely secure information transmission [1,2], exponentially or polynomially accelerating the resolving of hard scientific problems [3,4], efficient simulation of molecular structures [5], and precision measurement beyond the standard quantum limit [6].


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    Lantian Feng, Ming Zhang, Jianwei Wang, Xiaoqi Zhou, Xiaogang Qiang, Guangcan Guo, Xifeng Ren. Silicon photonic devices for scalable quantum information applications[J]. Photonics Research, 2022, 10(10): A135

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    Paper Information


    Received: May. 31, 2022

    Accepted: Aug. 3, 2022

    Published Online: Sep. 21, 2022

    The Author Email: Xifeng Ren (



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