Measurement of quantum-noise correlations in parametric image amplification | Zendy

M. Marable | Zendy; Sang Kyung Choi | Zendy; Prem Kumar | Zendy

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Measurement of quantum-noise correlations in parametric image amplification

Author(s) -

M. Marable,

Sang Kyung Choi,

Prem Kumar

Publication year - 1998

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.2.000084

Subject(s) - physics , optics , optical parametric amplifier , quantum noise , shot noise , parametric statistics , noise (video) , quantum amplifier , optical amplifier , amplifier , noise temperature , parametric oscillator , phase noise , quantum , laser , image (mathematics) , optoelectronics , mathematics , quantum information , quantum mechanics , computer science , quantum error correction , statistics , cmos , artificial intelligence , detector

We demonstrate quantum-noise correlations between the spatial frequencies of a parametrically amplified signal image and the generated conjugate (idler) image. Test images were amplified by an optical parametric amplifier that can be operated either as a low-pass or a band-pass amplifier for spatial frequencies. Direct difference detection of the signal and idler spatial frequencies at +- 16 mm{;{-1}} resulted in noise that fell below the shot-noise level by approx. 5 dB. Parametric-gain and phase-mismatch dependence of the observed quantum-noise reduction is in good agreement with the theory of a spatially-broadband optical parametric amplifier.

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