Abstract

We report on shift-multiplexed holographic storage of 250 digital data pages in a photopolymerizable SiO2 nanoparticle–polymer composite film being capable of step-growth thiol-ene polymerization in the green. Various two-dimensional symbol modulation codes for the digital data page format were employed to examine the dependence of the readout fidelity on modulation coding schemes. It is found that, as compared to 12 and 24 modulation codes, higher-order 59, 916, and 1325 modulation codes possessing reduced white rates and higher coding efficiencies give lower symbol-error rates of 1×103 and higher signal-to-noise ratios (>4).

© 2014 Optical Society of America

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