Design of mid-infrared entangled photon sources using lithium niobate
arXiv:2210.12466 · doi:10.1364/JOSAB.469376
Abstract
The mid-infrared (MIR) band entangled photon source is vital for the next generation of quantum communication, quantum imaging, and quantum sensing. However, the current entangled states are mainly prepared in visible or near-infrared bands. It is still lack of high-quality entangled photon sources in the MIR band. In this work, we optimize the poling sequence of lithium niobate to prepare two kinds of typical entangled states, the Hermit-Gaussian state and the comb-like entangled state at 3.2 m. We have also calculated the photon pair rates and estimated the effect of fabrication resolution in the schemes. Our approach will provide entangled photon sources with excellent performance for the study of quantum information in the MIR band.
arXiv comment9 pages,4 figures
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- Comparison of multi-mode Hong-Ou-Mandel interference and multi-slit interference
- Spatial-spectral mapping to prepare the frequency entangled qudits
- Mid-infrared spectrally-pure single-photon states generation from 22 nonlinear optical crystals
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