A Highly Efficient and Pure Few-Photon Source on Chip
- URL: http://arxiv.org/abs/2309.15233v1
- Date: Tue, 26 Sep 2023 19:54:57 GMT
- Title: A Highly Efficient and Pure Few-Photon Source on Chip
- Authors: Zhaohui Ma, Jia-Yang Chen, Malvika Garikapati, Zhan Li, Chao Tang,
Yong Meng Sua, and Yu-Ping Huang
- Abstract summary: We report on multi-photon statistics of correlated twin beams produced in a periodic poled micro-ring resonator on thin-film lithium niobate.
The findings of our research highlight the potential of this nanophotonic platform for generating non-classical, few-photon states.
- Score: 4.016925380411567
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We report on multi-photon statistics of correlated twin beams produced in a
periodic poled micro-ring resonator on thin-film lithium niobate. Owing to high
cavity confinement and near perfect quasi-phase matching, the photons pairs are
produced efficiently in single modes at rates reaching 27 MHz per $\mu$W pump
power. By using a pump laser whose pulse width impedance matches with the
cavity, those photons are further created in single longitudinal modes with
purity reaching 99\%, without relying on later-on filtering. With a
dual-channel photon-number resolving detection system, we obtain directly the
joint detection probabilities of multi-photon states up to three photons, with
high coincidence to accidental contrast for each. Used as a single photon
source, it gives heralded $g_H^{(2)}(0)$ around 0.04 at a single photon rate of
650 kHz on chip. The findings of our research highlight the potential of this
nanophotonic platform as a promising platform for generating non-classical,
few-photon states with ideal indistinguishability, for fundamental quantum
optics studies and information applications.
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