Investigation of light wave propagation in atmospheric disturbance toward quantum illumination

Genta Masada

doi:10.1117/12.2594539

1 August 2021 Investigation of light wave propagation in atmospheric disturbance toward quantum illumination

Genta Masada

Proceedings Volume 11835, Quantum Communications and Quantum Imaging XIX; 118350E (2021) https://doi.org/10.1117/12.2594539
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Quantum illumination is a technology that aims to improve the detection sensitivity of a target by utilizing quan- tum entangled state of light. We are studying quantum illumination using two-mode squeezed light. In quantum illumination, one light wave in a quantum entangled state is emitted toward a target during atmospheric disturbance. Therefore, it is extremely important to investigate the propagation characteristics of light waves under various atmospheric conditions toward the realization of quantum illumination. As an example of atmospheric disturbances, we have investigated the effect of uniform fog on light wave propagation in previous studies. It has been found that the effect of uniform fog on the propagation of laser light is mainly energy attenuation. Here we measure the propagation characteristics of single-mode squeezed light in a fog. We succeeded in observing the squeezed light that passed through the fog, and confirmed that the noise level of the squeezed light was degraded by the influence of the fog. It was found that the degradation of the noise level can be explained by considering that the influence of fog is mainly the attenuation of energy.

Conference Presentation

Citation Download Citation

Genta Masada "Investigation of light wave propagation in atmospheric disturbance toward quantum illumination", Proc. SPIE 11835, Quantum Communications and Quantum Imaging XIX, 118350E (1 August 2021); https://doi.org/10.1117/12.2594539

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