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【FOE】Optical design in high density and high capacity multi-layer data storage system

来源:武汉光电国家研究中心     作者:    发布时间:2015年04月30日    浏览:

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.

Keywords holographic and volume memories lens system design optical disks
Corresponding Authors: Yuzuru TAKASHIMA
Just Accepted Date: 18 September 2014 Online First Date: 17 November 2014 Issue Date: 12 December 2014

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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