Spectrally multiplexed indistinguishable single-photon generation at telecom-band

Yu，Hao1,2; Yuan，Chenzhi1; Zhang，Ruiming1; Zhang，Zichang1; Li，Hao3; Wang，You1,4; Deng，Guangwei1; You，Lixing3; Song，Haizhi1,4; Wang，Zhiming1,5; Guo，Guang Can1,6; Zhou，Qiang1,6,7

2022-06-01

10.1364/PRJ.450731

Photonics Research   影响因子和分区

2327-9125

Heralded single-photon source (HSPS) intrinsically suffers from the trade-off between the heralded single-photon rate and the single-photon purity. To break through this trade-off, one can apply multiplexing technology in different degrees of freedom that significantly improves the performance of the HSPS. Here, we propose a 1.5 μm chip-scale HSPS on lithium niobate on insulator by employing spectral multiplexing and active feed-forward spectral manipulating, and we demonstrate a proof-of-principle experiment with discrete fiber-based components. With continuous-wave laser pumping and three spectral modes multiplexed, our experimental results show that the spectral multiplexing improves the heralded single-photon rate by near threefold while keeping the g2(0) as low as 0.0006 ± 0.0001 at a measured single-photon rate of 3.1 kHz. By measuring the joint spectral intensity, we show that the spectral multiplexing and feed-forward control effectively erase the frequency correlation of photon pairs. Moreover, we implement the Hong–Ou–Mandel interference between the spectrally multiplexed single photons and photons from an independent weak coherence source, which indicates that the multiplexed single photons are highly indistinguishable after the spectral manipulation. Our results pave a way for on-chip scalable and high-performance HSPS with spectral multiplexing toward deterministic single-photon emission.

EI

英语

其他

National Natural Science Foundation of China[12074058];National Key Research and Development Program of China[2017YFA0304000];National Key Research and Development Program of China[2017YFB0405100];Sichuan Province Science and Technology Support Program[2018JY0084];National Key Research and Development Program of China[2018YFA0306102];National Key Research and Development Program of China[2018YFA0307400];National Key Research and Development Program of China[2019YFB2203400];National Natural Science Foundation of China[61405030];National Natural Science Foundation of China[61704164];National Natural Science Foundation of China[61775025];National Natural Science Foundation of China[62005039];National Natural Science Foundation of China[62075034];National Natural Science Foundation of China[91836102];National Natural Science Foundation of China[U19A2076];

20222212180368

Continuous wave lasers ; Degrees of freedom (mechanics) ; Economic and social effects ; Niobium compounds ; Photons ; Pumping (laser)

Lasers, General:744.1 ; Mechanics:931.1 ; Atomic and Molecular Physics:931.3 ; High Energy Physics:932.1 ; Social Sciences:971

2-s2.0-85130865719

Scopus

1.Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu,610054,China
2.Institut national de la recherche scientifique-Centre Énergie,Matériaux et Télécommunications (INRS-EMT),Varennes,J3X 1S2,Canada
3.Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai,200050,China
4.Southwest Institute of Technical Physics,Chengdu,610041,China
5.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
6.CAS Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei,230026,China
7.School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu,610054,China

Yu，Hao,Yuan，Chenzhi,Zhang，Ruiming,et al. Spectrally multiplexed indistinguishable single-photon generation at telecom-band[J]. Photonics Research,2022,10(6):1417-1429.

Yu，Hao.,Yuan，Chenzhi.,Zhang，Ruiming.,Zhang，Zichang.,Li，Hao.,...&Zhou，Qiang.(2022).Spectrally multiplexed indistinguishable single-photon generation at telecom-band.Photonics Research,10(6),1417-1429.

Yu，Hao,et al."Spectrally multiplexed indistinguishable single-photon generation at telecom-band".Photonics Research 10.6(2022):1417-1429.