Generation of hyperentangled photon pairs based on lithium niobate waveguide

doi:10.1088/1674-1056/acd5c4

中国物理B ›› 2023, Vol. 32 ›› Issue (9): 90306-090306.doi: 10.1088/1674-1056/acd5c4

Generation of hyperentangled photon pairs based on lithium niobate waveguide

Yang-He Chen(陈洋河)^1,2, Zhen Jiang(姜震)^1,2, and Guang-Qiang He(何广强)^1,2,†

1 SJTU Pinghu Institute of Intelligent Optoelectronics, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2 State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

收稿日期:2023-03-27 修回日期:2023-04-28 接受日期:2023-05-16 发布日期:2023-09-07
通讯作者: Guang-Qiang He E-mail:gqhe@sjtu.edu.cn
基金资助:
Project supported by the Key-Area Research and Development Program of Guangdong Province of China (Grant No. 2018B030325002), the National Natural Science Foundation of China (Grant No. 62075129), the Open Project Program of SJTU-Pinghu Institute of Intelligent Optoelectronics (Grant No. 2022SPIOE204), and the Science and Technology on Metrology and Calibration Laboratory (Grant No. JLJK2022001B002).

Generation of hyperentangled photon pairs based on lithium niobate waveguide

Yang-He Chen(陈洋河)^1,2, Zhen Jiang(姜震)^1,2, and Guang-Qiang He(何广强)^1,2,†

1 SJTU Pinghu Institute of Intelligent Optoelectronics, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2 State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2023-03-27 Revised:2023-04-28 Accepted:2023-05-16 Published:2023-09-07
Contact: Guang-Qiang He E-mail:gqhe@sjtu.edu.cn
Supported by:
Project supported by the Key-Area Research and Development Program of Guangdong Province of China (Grant No. 2018B030325002), the National Natural Science Foundation of China (Grant No. 62075129), the Open Project Program of SJTU-Pinghu Institute of Intelligent Optoelectronics (Grant No. 2022SPIOE204), and the Science and Technology on Metrology and Calibration Laboratory (Grant No. JLJK2022001B002).

摘要/Abstract

摘要： Generation of hyperentangled photon pairs is investigated based on the lithium niobate straight waveguide. We propose to use the nonlinear optical process of spontaneous parametric down-conversion (SPDC) and a well-designed lithium niobate waveguide structure to generate a hyperentangled (in the polarization dimension and the energy-time dimension) two-photon state. By performing numerical simulations of the waveguide structure and calculating the possible polarization states, joint spectral amplitudes (JSA), and joint temporal amplitudes (JTA) of the generated photon pair, we show that the generated photon pair is indeed hyperentangled in both the polarization dimension and the energy-time dimension.

关键词: hyperentanglement, nonlinear photonic crystal, lithium niobate waveguide

Abstract: Generation of hyperentangled photon pairs is investigated based on the lithium niobate straight waveguide. We propose to use the nonlinear optical process of spontaneous parametric down-conversion (SPDC) and a well-designed lithium niobate waveguide structure to generate a hyperentangled (in the polarization dimension and the energy-time dimension) two-photon state. By performing numerical simulations of the waveguide structure and calculating the possible polarization states, joint spectral amplitudes (JSA), and joint temporal amplitudes (JTA) of the generated photon pair, we show that the generated photon pair is indeed hyperentangled in both the polarization dimension and the energy-time dimension.

Key words: hyperentanglement, nonlinear photonic crystal, lithium niobate waveguide

中图分类号: (Entanglement production and manipulation)

03.67.Bg

42.65.Lm (Parametric down conversion and production of entangled photons)

Yang-He Chen(陈洋河), Zhen Jiang(姜震), and Guang-Qiang He(何广强). Generation of hyperentangled photon pairs based on lithium niobate waveguide[J]. 中国物理B, 2023, 32(9): 90306-090306.

Yang-He Chen(陈洋河), Zhen Jiang(姜震), and Guang-Qiang He(何广强). Generation of hyperentangled photon pairs based on lithium niobate waveguide[J]. Chin. Phys. B, 2023, 32(9): 90306-090306.

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Generation of hyperentangled photon pairs based on lithium niobate waveguide

Generation of hyperentangled photon pairs based on lithium niobate waveguide

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