Acta Optica Sinica, Volume. 42, Issue 3, 0327008(2022)
Compact Quantum Entangled-Photon Source for Space Platform
With the rapid development of quantum information science, quantum entangled-photon source has become an important resource for quantum nonlocality test, quantum communication, quantum computing, and quantum metrology. Using spontaneous parametric down-conversion process in a nonlinear medium, polarized two-photon entanglement sources have been rapidly developed in terms of brightness and quality. From the early bulk crystal of β-barium borate to the later periodically poled crystal based on quasi-phase-matching, the brightness of the entanglement source has been increased, providing the possibility of large-scale quantum communication and fundamental test of quantum physics with satellites. Here we systematically introduce the development and latest achievements of quantum entangled-photon sources for space platform application in recent years, especially the spaceborne entangled-photon source represented by the Micius quantum science satellite. In addition, the international progress and future trend of satellite-based quantum entanglement source in recent years are also introduced and analyzed.
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Xiaoyan Zhou, Bo Li, Yuhuai Li, Yuan Cao, Juan Yin, Chengzhi Peng. Compact Quantum Entangled-Photon Source for Space Platform[J]. Acta Optica Sinica, 2022, 42(3): 0327008
Category: Quantum Optics
Received: Sep. 13, 2021
Accepted: Dec. 10, 2021
Published Online: Jan. 25, 2022
The Author Email: Yin Juan (yinjuan@ustc.edu.cn)