Optical: systems and elements – Holographic system or element – Using modulated or plural reference beams
Patent
1995-04-12
1997-06-24
Dzierzynski, Paul M.
Optical: systems and elements
Holographic system or element
Using modulated or plural reference beams
359 11, 359 7, 359 35, G03H 110, G03H 112, G03H 102, G03H 104
Patent
active
056422105
ABSTRACT:
In a method for mitigating cross-talk in high-efficiency, angle-multiplexed holograms stored in photorefractive media, a plurality of uniformly low-efficiency holograms are first stored within a common holographic storage medium and then simultaneously exposed to a like plurality of mutually incoherent reference beams. Each reference beam effects enhancement of its corresponding hologram so as to increase the level thereof while also minimizing cross-talk between holograms.
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Reis James J.
Stoll Harold M.
Anderson Terry J.
Chang Audrey Y.
Dzierzynski Paul M.
Hoch Jr. Karl J.
Northrop Grumman Corporation
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