• Frontiers of Optoelectronics
  • Vol. 7, Issue 4, 425 (2014)
Yuzuru TAKASHIMA*
Author Affiliations
  • College of Optical Sciences, University of Arizona, Tucson, AZ 85721, USA
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    DOI: 10.1007/s12200-014-0416-4 Cite this Article
    Yuzuru TAKASHIMA. Optical design in high density and high capacity multi-layer data storage system[J]. Frontiers of Optoelectronics, 2014, 7(4): 425 Copy Citation Text show less

    Abstract

    Fundamental requirements for optical system design for volume recording system is identified. Anastigmatic objective lens design is required for conventional page-based system, whereas for multi-layer volume recording systems, an Aplanatic and zoom optical design is needed with an afocal sub-optical system including a high numerical aperture (NA) objective element. An NA 0.4 and four element design is feasible by only using offthe-shelf components. Recording depth ranges of 0.4 mm for wavelength 532 nm and 0.2 mm for 405 nm. The design demonstrates sufficiently small as-built wavefront error, less than 0.1 waves while implementing focusing and tracking capabilities to the design.
    Yuzuru TAKASHIMA. Optical design in high density and high capacity multi-layer data storage system[J]. Frontiers of Optoelectronics, 2014, 7(4): 425
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