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Soviet Journal of Quantum Electronics

Interaction of a spatially modulated wave of complex structure with a plane wave in a quantum amplifier

Tatiana I. Kuznetsova, D. Yu. Kuznetsov

Published Aug 31, 1981• 1 citation
Publisher

Abstract

A theoretical investigation is made of conversion (in an amplifier) of the image of a signal consisting of a wave with a pseudorandom transverse structure and a plane wave. Equations are obtained for the description of the mutual influence of these waves under saturation conditions. The results of calculations demonstrate a considerable change in the ratio of the intensities of these waves as a result of amplification.

DOI
10.1070/qe1981v011n08abeh008059

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A theoretical investigation is made of conversion (in an amplifier) of the image of a signal consisting of a wave with a pseudorandom transverse structure and a plane wave. Equations are obtained for the description of the mutual influence of these waves under saturation conditions. The results of calculations demonstrate a considerable change in the ratio of the intensities of these waves as a result of amplification.
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Quantum properties of parametric amplification and frequency conversion of an optical image in coupled parametric interactions are analyzed for the case of a remote object. The coupled-wave interaction consists of a traditional process of parametric amplification in the high-frequency pump field accompanied by the frequency mixing of generated and pump waves. The photon number density and signal-to-noise ratio at the interacting frequencies are studied in the image plane at the output of the nonlinear frequency converter in the fixed pump field approximation. The degree of entanglement of optical images at frequencies above and below the pump frequency is investigated.