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Optimizing the Parameters of a Periodically Poled LiNbO3 Nanowaveguide Structure for Generating Ultrabroadband Biphotons in the Near-IR Range

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

For quantum biomicroscopy, light sources need to provide a reliable signal at low intensity levels with a high rate generation in the near-infrared region. To develop this light source, we investigated the abilities of generating ultrabroadband two-photon states in the near-infrared in a periodically poled lithium niobate (LiNbO3) nanowaveguide with different geometrical cros-section and pump wavelength. Using modeling and numerical calculations the optimal nanowaveguide parameters providing the maximum width of the spectrum of two-photon states ~180 THz under the pump wavelength about 1.0 μm were determined.

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Funding

This work was supported by the RF Ministry of Science and Higher Education, reg. nо. NIOKTR 121020400113-1.

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Authors and Affiliations

  1. Kazan National Research Technical University, 420111, Kazan, Russia

    O. A. Ermishev, M. A. Smirnov, A. F. Khairullin & N. M. Arslanov

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  1. O. A. Ermishev
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  2. M. A. Smirnov
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  3. A. F. Khairullin
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  4. N. M. Arslanov
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Corresponding author

Correspondence to N. M. Arslanov.

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The authors declare they have no conflicts of interest.

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Translated by G. Dedkov

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Ermishev, O.A., Smirnov, M.A., Khairullin, A.F. et al. Optimizing the Parameters of a Periodically Poled LiNbO3 Nanowaveguide Structure for Generating Ultrabroadband Biphotons in the Near-IR Range. Bull. Russ. Acad. Sci. Phys. 86, 1502–1506 (2022). https://doi.org/10.3103/S1062873822120085

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  • DOI: https://doi.org/10.3103/S1062873822120085

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