Angle/fractal multiplexing using x-y Galvano mirror system and new method of improving random-access performance

Jin Young Choi, Jae Sung Lee, Sang Hoon Kim, Jang Hyun Kim, Hyun Seok Yang, No Cheol Park, Young Pil Park

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Angle/fractal multiplexing using an x-y Galvano mirror and a new method of improving random access for a holographic digital data storage (HDDS) are discussed in this paper. Using angle/fractal multiplexing, total 1000 data pages were recorded on a 0.03% Fe-doped LiNbO3 crystal. In this process, we introduced a random-access concept in a HDDS and proposed a new method to improve the random-access performance. The proposed method is the use of an additional signal beam to record a page count signal, and a basic experiment was performed to verify the idea. A 2 × 10-4 raw bit error rate (BER) was achieved from the recorded data, and the effectiveness of the proposed page count signal during seek motion was proved by experiments. Finally, a random-access using a proportional-integration-derivative (PID) controller combining with a Kalman filter to estimate the precision of the output was carried out, and some comments on the results were presented.

Original languageEnglish
Pages (from-to)1253-1257
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number2 B
DOIs
Publication statusPublished - 2006 Feb 24

Fingerprint

random access
Digital storage
multiplexing
Multiplexing
Fractals
fractals
Mirrors
mirrors
digital data
data storage
Kalman filters
Bit error rate
Experiments
Derivatives
Controllers
Crystals
bit error rate
doped crystals
controllers
output

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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title = "Angle/fractal multiplexing using x-y Galvano mirror system and new method of improving random-access performance",
abstract = "Angle/fractal multiplexing using an x-y Galvano mirror and a new method of improving random access for a holographic digital data storage (HDDS) are discussed in this paper. Using angle/fractal multiplexing, total 1000 data pages were recorded on a 0.03{\%} Fe-doped LiNbO3 crystal. In this process, we introduced a random-access concept in a HDDS and proposed a new method to improve the random-access performance. The proposed method is the use of an additional signal beam to record a page count signal, and a basic experiment was performed to verify the idea. A 2 × 10-4 raw bit error rate (BER) was achieved from the recorded data, and the effectiveness of the proposed page count signal during seek motion was proved by experiments. Finally, a random-access using a proportional-integration-derivative (PID) controller combining with a Kalman filter to estimate the precision of the output was carried out, and some comments on the results were presented.",
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Angle/fractal multiplexing using x-y Galvano mirror system and new method of improving random-access performance. / Choi, Jin Young; Lee, Jae Sung; Kim, Sang Hoon; Kim, Jang Hyun; Yang, Hyun Seok; Park, No Cheol; Park, Young Pil.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 2 B, 24.02.2006, p. 1253-1257.

Research output: Contribution to journalArticle

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AU - Kim, Jang Hyun

AU - Yang, Hyun Seok

AU - Park, No Cheol

AU - Park, Young Pil

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