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Volume holographic storage demonstrator based on phase-coded multiplexing

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4 Author(s)
Denz, C. ; Inst. of Appl. Phys., Tech. Univ. Darmstadt, Germany ; Muller, K.-O. ; Heimann, T. ; Tschudi, T.

We present the design and realization of a compact volume holographic memory based on phase-coded multiplexing. Due to the use of nonmechanical reference beam changes in this multiplexing technique, rapid access of the stored data pages is achieved. Our system can reach a maximum storage capacity up to 480 data pages with a resolution of 640×480 pixels in a single interaction region of a photorefractive LiNbO3 crystal. We present the implementation of the system and first experimental results of both, high-resolution analog image storage and digital data storage. The storage of 180 data pages is demonstrated as well as the application of the system to real-time optical image processing

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:4 ,  Issue: 5 )