Transactions of the Society of Information Storage Systems (정보저장시스템학회논문집)

The Society of Information Storage Systems (정보저장시스템학회)
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Real Time Light Intensity Control Algorithm Using Digital Image Mask for the Holographic Data Storage System

홀로그래픽 정보저장장치에서 디지털 이미지 마스크를 이용한 실시간 광량 제어 알고리즘

  • Received : 2009.09.01
  • Accepted : 2010.03.12
  • Published : 2010.03.25
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Abstract

Holographic data storage system(HDSS) has many noise sources - crosstalk, scattering and inter pixel interference, etc. Generally the intensity of a light generated from the laser source has Gaussian distribution and this ununiformity of light also can make the data page to have a low SNR. A beam apodizer is used to make the laser as a flat-top beam but the intensity distribution is not strictly uniform. The intensity of light can be controlled using image mask. In this paper the intensity distribution of light used for HDSS is controlled by a digital image mask. The digital image mask is changed arbitrarily in real-time with suggested algorithm for the HDSS.

Keywords

References

  1. Hans J. Coufal, Demetri Psaltis and Glen T.Sincerbox, 2000, Holographic Data Storage, Springer, New York, USA.
  2. K. Curtis, A. Pu and D. Psaltis, 1994, "Method for Holographic Storage using Peristrophic Multiplexing", Opt. Lett. vol. 19, pp. 993-994. https://doi.org/10.1364/OL.19.000993
  3. S.-K. Kim, K.-T. Kim and E. S. Kim, 1999, "Non-Mechanical Angular Multiplexed Holographic Memory System using Moving Window on Liquid Crystal Display", Jpn. J. Appl. Phys. vol. 38, pp. 38-40. https://doi.org/10.1143/JJAP.38.38
  4. J.-S. Jang, D.-H Shin and Y.-S Park., 2000, "Holographic data storage by combined use of Peristrophic, Angular and Spatial Multiplexing", Opt. Eng. , vol. 39, pp. 2975–2980. https://doi.org/10.1117/1.1312646
  5. Li H-YS, Psaltis D, 1994, "Three dimensional holographic disks", Applied Optilc, Vol 33, No 17, pp.3764-3774. https://doi.org/10.1364/AO.33.003764
  6. Ken Anderson, Kevin Curtis, 2004, "Polytopic multiplexing", Optics Letters, vol .29, Issue. 12, pp. 1402-1404. https://doi.org/10.1364/OL.29.001402
  7. J. M. Gonzalez-Leal, 2004, "Automated system for the study of volume holographic recording", AIP, vol .75, no. 9, pp. 2899-2902.
  8. Eugene Hecht, 2002, OPTICS 4th edition, Addison Wesley, San Francisco, USA.
  9. Normal S. Nise, 2000, Control Systems Engineering 3rd ed., Wiley, USA.
  10. Bahram Shahian, Michael Hassul, 1993, Control Systems Design Using MATLAB, Prentice Hall International Edition, USA.
  11. Rafael C. Gonzalez and Richard E. Woods, 2002, Digital Image Processing, Prentice Hall, New Jersey.
  12. Sang-Hoon Kim, Jang Hyun Kim, Hyunseok Yang, and Young-Pil Park, 2005, "Design Error Corrector of Binary Data in Holographic Data Storage System Using Subclustering", Proceeding of ISPS'05.
  13. Simon Haykin, Neural Network.