Experimental demonstration of gray-scale sparse modulation codes in volume holographic storage.

@article{King2003ExperimentalDO,
  title={Experimental demonstration of gray-scale sparse modulation codes in volume holographic storage.},
  author={Brian M. King and Geoffrey W. Burr and Mark A. Neifeld},
  journal={Applied optics},
  year={2003},
  volume={42 14},
  pages={2546-59}
}
We discuss experimental results of a versatile nonbinary modulation and channel code appropriatefor two-dimentional page-oriented holographic memories. An enumerative permutation code is used to provide a modulation code that permits a simple maximum-likelihood detection scheme. Experimental results from the IBM Demon testbed are used to characterize the performance and feasibility of the proposed modulation and channel codes. A reverse coding technique is introduced to combat the effects of… CONTINUE READING
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