A wavelength variable visible-infrared photon pair source using a LiNbO3 crystal in the mid-infrared region

Masaya Arahata; Yu Mukai; Bo Cao; Toshiyuki Tashima; Ryo Okamoto; Shigeki Takeuchi

doi:10.1117/12.2594340

1 August 2021 A wavelength variable visible-infrared photon pair source using a LiNbO₃ crystal in the mid-infrared region

Masaya Arahata, Yu Mukai, Bo Cao, Toshiyuki Tashima, Ryo Okamoto, Shigeki Takeuchi

Author Affiliations +

Proceedings Volume 11835, Quantum Communications and Quantum Imaging XIX; 1183506 (2021) https://doi.org/10.1117/12.2594340
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Visible-infrared photon pair sources working in broadband mid-infrared region are useful for applications such as heralded mid-infrared single photon sources. Here, we demonstrate experimentally a wavelength variable visible-infrared photon pair source in the mid-infrared region over a wide spectral range of 2 to 5 μm. By changing the angle of the nonlinear crystal in the source, the observed wavelengths of the signal photons change from 600 to 965 nm, corresponding to the idler wavelengths in 1186-4694 nm.

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Masaya Arahata, Yu Mukai, Bo Cao, Toshiyuki Tashima, Ryo Okamoto, and Shigeki Takeuchi "A wavelength variable visible-infrared photon pair source using a LiNbO₃ crystal in the mid-infrared region", Proc. SPIE 11835, Quantum Communications and Quantum Imaging XIX, 1183506 (1 August 2021); https://doi.org/10.1117/12.2594340

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