Calculation of the structure of the periodically poled lithium niobate nanowaveguide  for generation of ultrabroadband biphotons in the near-infrared range

O. A. Ermishev; N. M. Arslanov; M. A. Smirnov

doi:10.1117/12.2681337

4 October 2023 Calculation of the structure of the periodically poled lithium niobate nanowaveguide for generation of ultrabroadband biphotons in the near-infrared range

O. A. Ermishev, N. M. Arslanov, M. A. Smirnov

Author Affiliations +

Proceedings Volume 12743, Optical Technologies for Telecommunications 2022; 127430N (2023) https://doi.org/10.1117/12.2681337
Event: Optical Technologies for Telecommunications 2022, 2022, Ufa, Russian Federation

Abstract

In this paper, we studied the properties of two-photon quantum states of light that emerge due to spontaneous parametric downconversion in a nonlinear waveguide with periodically poles structure. The spectral and entangled properties have been studied mainly for photon pairs whose spectra is located in the near-infrared range. We found that it is possible to select the geometric parameters of the structure of a lithium niobate nanowaveguide in such a way that the two-photon quantum state in the near-IR range will have a spectrum width of about 180THz.

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O. A. Ermishev, N. M. Arslanov, and M. A. Smirnov "Calculation of the structure of the periodically poled lithium niobate nanowaveguide for generation of ultrabroadband biphotons in the near-infrared range", Proc. SPIE 12743, Optical Technologies for Telecommunications 2022, 127430N (4 October 2023); https://doi.org/10.1117/12.2681337

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KEYWORDS

Waveguides

Dispersion

Quantum entanglement

Lithium niobate

Polarization

Quantum states

Quantum correlations

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