Modeling and analysis of vibration effects on signal quality for angular multiplexed holographic data storage

Toshiki Ishii, Ken Ichi Shimada, Taku Hoshizawa, Yuzuru Takashima

Research output: Contribution to journalArticle

Abstract

A practical optical system design that takes into account environmental factors is highly desirable. However, it is in general a time-consuming process, which requires a massive iterations of simulations. This is also one of the bottlenecks of the optical design of angular multiplexed holographic data storage systems. To develop a practical method to evaluate the effect of vibrations, a three-dimensional vibration model is developed. The model describes the vibration effect on normalized intensity on the basis of a single statistical figure of merit. Such a single figure of merits is adopted for designing a robust and efficient write strategy, which is applicable to a wide range of vibration waveforms to increase write data transfer rate. Also, optimum optical system parameters are identified. We propose a numerical aperture of 0.572 and a pixel pitch of 6.9 μm which can improve capacity and data transfer rate without sacrificing the vibration margin.

Original languageEnglish (US)
Article number09SA05
JournalJapanese Journal of Applied Physics
Volume55
Issue number9
DOIs
StatePublished - Sep 2016

ASJC Scopus subject areas

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

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