In order to simplify the threshold determination

reduce the inter-pixel cross-talk

and improve the storage density for high-density volume holographic data storage

a two-dimensional constant-weight sparse modulation code is proposed. The evaluation criteria and design rules are investigated based on the page-oriented optical data storage system. Coding parameters are optimized to achieve large channel capacities. An 8:16 modulation code is designed to reduce the raw bit error rate and its performances are experimentally evaluated. A raw bit error rate of the magnitude of 10

−4

is obtained with a single-data-page storage and 10

−3

with multiplexing.