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Article Dans Une Revue Journal of the Optical Society of America. A Optics, Image Science, and Vision Année : 1995

Spatial fluctuations of optical field modulated with spatial light modulators and noisy input signals

Résumé

Electrically addressed spatial light modulators (EASLM s) are currently used in many coherent optical signal processing applications. Within the EASLM the input signal is generally transformed in a nonlinear fashion. The noise on the input signal that is sent to the EASLM is then also transformed nonlinearly. In particular, even with additive and homogeneous input noise, the color of the noise as well as the signal-to-noise ratio of the input signal can be significantly modified. We propose a new general formalism for the determination of the spatial covariance of the optical field that is due to nonlinear transformation of the input noise. Applications of this new formalism are illustrated for Gaussian correlated noise.
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Dates et versions

hal-00081234 , version 1 (22-06-2006)

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  • HAL Id : hal-00081234 , version 1

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Philippe Réfrégier, Vincent Laude. Spatial fluctuations of optical field modulated with spatial light modulators and noisy input signals. Journal of the Optical Society of America. A Optics, Image Science, and Vision, 1995, 12 (6), pp.1338-1345. ⟨hal-00081234⟩
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