Toward 1% single-photon anharmonicity with periodically poled lithium niobate microring resonators
By Juanjuan Lu, Ming Li, Chang-ling Zou, Ayed Al Sayem, Hong X. Tang. 2020
145 citations recorded by the source corpus.
The absence of the single-photon nonlinearity has been a major roadblock in developing quantum photonic circuits at optical frequencies. In this paper, we demonstrate a periodically-poled thin film lithium niobate microring resonator (PPLNMR) that reaches 5,000,000%/W second harmonic conversion efficiency---almost 20-fold enhancement over the state-of-the-art---by accessing its largest $\chi^{(2)}$ tensor component $d_{33}$ via quasi-phase matching. The corresponding single photon coupling rate $g/2\pi$ is estimated to be 1.2 MHz, which is an important milestone as it approaches the dissipation rate $\kappa/2\pi$ of best available lithium niobate microresonators developed in the community. Using a figure of merit defined as $g/\kappa$, our devices reach a single photon nonlinearity approaching 1%. We show that, by further scaling of the device, it is possible to improve the single photon nonlinearity to a regime where photon-blockade effect can be manifested.
Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/a99c8af65d24c7f33f10e036162d122fbc3fe260
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In Atomic and Molecular Physics, and Optics
- Mian Zhang
- Marko Loncar
- Amirhassan Shams-Ansari
- Hong X. Tang
- Tobias J. Kippenberg
- B. Desiatov
- Kerry J. Vahala
- Herre S. J. van der Zant
Citations in the corpus
- Ultralow-threshold thin-film lithium niobate optical parametric oscillator (2021, background): “2 MHz, consistent with the value obtained via the independent SHG measurement [30].”
- Reduced Material Loss in Thin-film Lithium Niobate Waveguides (2022, background): “deterministic room-temperature single photon source with periodically-poled TFLN micro-ring [14].”
- Integrated electro-optics on thin-film lithium niobate (2024, unknown): “Although a single photon nonlinearity is not currently efficient in TFLN 176 , the possibility of beam splitting and high-bandwidth EO phase shifting renders it attractive for linear-optical quantum computing 132 .”