Photon statistics of acousto-optic modulation

Mateo Restrepo; Angela Maria Guzman; William T. Rhodes; Jean-Pierre Goedgebuer

doi:10.1117/12.527472

19 November 2003 Photon statistics of acousto-optic modulation

Mateo Restrepo, Angela Maria Guzman, William T. Rhodes, Jean-Pierre Goedgebuer

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.527472
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

We analyze the quantum statistical properties of light scattered by an acousto-optic modulator. From the perspective of quantum mechanics, the acousto-optic effect arises from a nonlinear interaction between three bosonic fields: the laser light, the Brillouin-scattered light, and an acoustic wave. The Hamiltonian coincides with that of sum-frequency generation, where the sum-frequency mode is known to exhibit sub-Poissonian statistics. We calculate the free temporal evolution of the Fano factor for Brillouin backscattered light and determine that sub-Poissonian statistics are obtained when faint laser light is scattered by a counter-propagating coherent acoustic wave with low average phonon number. The use of sub-Poissonian light would lead to an increase of the security for quantum key distribution.

Citation Download Citation

Mateo Restrepo, Angela Maria Guzman, William T. Rhodes, and Jean-Pierre Goedgebuer "Photon statistics of acousto-optic modulation", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.527472

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