Abstract

A coherent optical processing system is usually nonredundant because any attempt to secure redundancy by band-limiting the input leads to a corresponding underuse of the Fourier plane. Methods are suggested for putting additional copies of the signal into the unused region. This results in a certain departure from strict coherence but is in no case as extreme as using noncoherent methods.

© 1980 Optical Society of America

Losslessness of optical systems in a vectorial treatment

M. J. van Weert
J. Opt. Soc. Am. 70(5) 565-567 (1980)

Linear restoration of bilinearly distorted images

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Transfer function with quadratic detection: coherent illumination

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Optical noise and temporal coherence

P. Chavel
J. Opt. Soc. Am. 70(8) 935-943 (1980)

Absolute optical absorption coefficient measurements using photoacoustic spectroscopy amplitude and phase information

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J. Opt. Soc. Am. 70(5) 557-560 (1980)