Quantum sum-frequency interference using up-converted photon pairs
- URL: http://arxiv.org/abs/2108.04503v1
- Date: Tue, 10 Aug 2021 08:17:45 GMT
- Title: Quantum sum-frequency interference using up-converted photon pairs
- Authors: A. Syouji, R. Shimizu, S. Nagano, K. Suizu, and K. Edamatsu
- Abstract summary: We demonstrate a hybrid approach to the generation of photon pairs of a short wavelength with high brightness.
The technique simultaneously provides short fringe period beyond the classical limit and high brightness of the photon pairs.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We demonstrate a hybrid approach to the generation of photon pairs of a short
wavelength with high brightness, by combining parametric down-conversion (SPDC)
and up-conversion techniques. Photon pairs were generated at the wavelength of
1550 nm via SPDC, and converted to 516.7 nm through up-conversion with the pump
at 775 nm. The quantum sum-frequency interference of the up-converted photon
pairs exhibited a fringe period of 258.3 nm, which was 6 times shorter than the
original wavelength, demonstrating that the energy-time correlation of the
photon pairs was preserved. The technique simultaneously provides short fringe
period beyond the classical limit and high brightness of the photon pairs.
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