Abstract

There are various multiplexing methods in holographic data recording. A larger storage capacity is anticipated when combining two different multiplexing methods and then ensuring crosstalk-free recording. We have proposed a cross-shift multiplexing method that combines shift multiplexing and peristrophic multiplexing. Crosstalk-free conditions for shift multiplexing and peristrophic multiplexing were separately clarified. However, these conditions cannot be individually applied to cross-shift multiplexing. Then, we deduced the analytic formula of crosstalk for cross-shift multiplexing and verified its validity by comparing the theoretical and experimental results. Using this analytic formula, the shift pitch and rotation angle that attain crosstalk-free multiplexing can be determined.

© 2018 Optical Society of America

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