Front. Optoelectron.
2014, Vol. 7
Issue (4) : 425-436 DOI: 10.1007/s12200-014-0416-4
Optical design in high density and high capacity multi-layer data storage system
Yuzuru TAKASHIMA( ) |
College of Optical Sciences, University of Arizona, Tucson, AZ 85721, USA
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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 off-the-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.
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Cite this article: |
Yuzuru TAKASHIMA. Optical design in high density and high capacity multi-layer data storage system[J]. Front. Optoelectron., 2014, 7(4): 425-436. |
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