A two-dimensional constant-weight sparse modulation code for volume holographic data storage

Hua-rong GU; Liang-cai CAO; Qing-sheng HE; Guo-fan JIN

doi:10.1631/jzus.C1010246

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A two-dimensional constant-weight sparse modulation code for volume holographic data storage

光学工程 | Updated：2022-08-31

- A two-dimensional constant-weight sparse modulation code for volume holographic data storage
- A two-dimensional constant-weight sparse modulation code for volume holographic data storage
- 信息与电子工程前沿（英文） 2011年12卷第5期页码：430-435
- Affiliations：
  
  State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China
- Author bio：
  
  E-mail:ghr@mail.tsinghua.edu.cn
- Funds：
- DOI：10.1631/jzus.C1010246
  中图分类号：
- 收稿：2010-05-27，
  
  修回：2010-10-12，
  
  录用：2010-09-03，
  
  纸质出版：2011-05
- Accepted：
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A two-dimensional constant-weight sparse modulation code for volume holographic data storage[J]. 信息与电子工程前沿（英文）, 2011,12(5):430-435.

Hua-rong GU, Liang-cai CAO, Qing-sheng HE, et al. A two-dimensional constant-weight sparse modulation code for volume holographic data storage[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(5): 430-435.
A two-dimensional constant-weight sparse modulation code for volume holographic data storage[J]. 信息与电子工程前沿（英文）, 2011,12(5):430-435. DOI： 10.1631/jzus.C1010246.

Hua-rong GU, Liang-cai CAO, Qing-sheng HE, et al. A two-dimensional constant-weight sparse modulation code for volume holographic data storage[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(5): 430-435. DOI： 10.1631/jzus.C1010246.

摘要

Abstract

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.

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