K. Curtis et D. Psaltis, CROSS-TALK IN PHASE-CODED HOLOGRAPHIC MEMORIES, Journal of the Optical Society of America. A: Optics and image science, 10(12), 1993, pp. 2547-2550
Citations number
10
Categorie Soggetti
Optics
Journal title
Journal of the Optical Society of America. A: Optics and image science
The cross talk between holograms multiplexed with Walsh-Hadamard phase
codes is analyzed. Each hologram is stored with a reference beam that
consists of N phase-coded plane waves. The signal-to-noise ratio (SNR
) is calculated for a recording schedule for which the center of each
stored image coincides with the nulls of the selectivity function for
the adjacent plane-wave components of the reference beam. The SNR char
acteristics for phase coding with Walsh-Hadamard phase codes are then
compared with the SNR for angle and wavelength multiplexing.