Cross-Talk In Phase-Coded Holographic Memories

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 characteristics for phase coding with Walsh-Hadamard phase codes are then compared with the SNR for angle and wavelength multiplexing.


Published in:
Journal Of The Optical Society Of America A-Optics Image Science And Vision, 10, 2547-2550
Year:
1993
Laboratories:




 Record created 2010-11-25, last modified 2018-03-17

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