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Optimized Design of the Lithium Niobate for Spectrally‐Pure‐State Generation at MIR Wavelengths Using Metaheuristic Algorithm
- Source :
- Advanced Quantum Technologies. 5:2200028
- Publication Year :
- 2022
- Publisher :
- Wiley, 2022.
-
Abstract
- Quantum light sources in the mid-infrared (MIR) band play an important role in many applications, such as quantum sensing, quantum imaging, and quantum communication. However, there is still a lack of high-quality quantum light sources in the MIR band, such as the spectrally pure single-photon source. In this work, we present the generation of spectrally-pure state in an optimized poled lithium niobate crystal using a metaheuristic algorithm. In particular, we adopt the particle swarm optimization algorithm to optimize the duty cycle of the poling period of the lithium niobate crystal. With our approach, the spectral purity can be improved from 0.820 to 0.998 under the third group-velocity-matched condition, and the wavelength-tunable range is from 3.0 $\mu$m to 4.0 $\mu$m for the degenerate case and 3.0 $\mu$m to 3.7 $\mu$m for the nondegenerate case. Our work paves the way for developing quantum photonic technologies at the MIR wavelength band.<br />Comment: 13 pages, 10 figures
- Subjects :
- Quantum Physics
Nuclear and High Energy Physics
Computational Theory and Mathematics
Physics::Optics
FOS: Physical sciences
Statistical and Nonlinear Physics
Electrical and Electronic Engineering
Quantum Physics (quant-ph)
Condensed Matter Physics
Mathematical Physics
Physics - Optics
Optics (physics.optics)
Electronic, Optical and Magnetic Materials
Subjects
Details
- ISSN :
- 25119044
- Volume :
- 5
- Database :
- OpenAIRE
- Journal :
- Advanced Quantum Technologies
- Accession number :
- edsair.doi.dedup.....bde8dfd46e62cd7f70aa9ebf064a3d59