Source of entangled photon pairs generated by low-power pump laser

Tianxuan Feng; Tong Wu; Shuyuan Zhang; Zhiying Song; Lijing Li

doi:10.1117/12.3006764

18 December 2023 Source of entangled photon pairs generated by low-power pump laser

Tianxuan Feng, Tong Wu, Shuyuan Zhang, Zhiying Song, Lijing Li

Proceedings Volume 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics; 1296322 (2023) https://doi.org/10.1117/12.3006764
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

With the continuous development of optical quantum sensor technology, the importance of quantum entanglement sources is growing. As an essential component of optical quantum systems, entanglement sources have broad applications in quantum communication, imaging, computing, and other fields. However, the high-power consumption and preparation costs associated with these sources hinder their integration and expansion. To address these issues, we conducted experiments using a 40mW laser diode and a typical type-II barium metaborate (BBO) crystal to prepare a low-power and low-cost quantum entanglement source. Our results show an average count of over 15,000 entangled photons per second and over 7,500 entangled photon pairs per second, which are in good agreement with theoretical analysis. We have made significant progress towards achieving the goal of low-power and low-cost entanglement sources, which will facilitate the practical application of quantum entanglement lighting and promote the wider adoption of optical quantum systems in the future.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tianxuan Feng, Tong Wu, Shuyuan Zhang, Zhiying Song, and Lijing Li "Source of entangled photon pairs generated by low-power pump laser", Proc. SPIE 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics, 1296322 (18 December 2023); https://doi.org/10.1117/12.3006764

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KEYWORDS

Quantum entanglement

Quantum sources

Quantum systems

Quantum imaging

Quantum particles

Photon polarization

Crystals

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