Collinear holographic data storage system

Xiaodi Tan; Xiao Lin; Anan Wu

doi:10.1117/12.2031696

20 August 2013 Collinear holographic data storage system

Xiaodi Tan, Xiao Lin, Anan Wu

Proceedings Volume 8913, International Symposium on Photoelectronic Detection and Imaging 2013: Optical Storage and Display Technology; 891305 (2013) https://doi.org/10.1117/12.2031696
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

Holographic data storage system is a promising candidate of the next-generation of storage equipment. However, conventional technologies (called 2-axis holography) still have essential issues for commercialization of products. In this paper, we introduce the collinear holography that can produce a small, practical data storage system more easily than conventional 2-axis holography. In this technology the information and reference beams are displayed co-axially by the same SLM. With this unique configuration the optical pickup can be placed on one side of the recording media. The special media structure uses a pre-formatted reflective layer for the focus/tracking servo and for reading address information. It also uses a dichroic mirror interlayer for detecting holographic recording information without interfering with the preformatted information. A 2-dimensional digital page data format is used and the shift-multiplexing method is employed to increase recording density.

Citation Download Citation

Xiaodi Tan, Xiao Lin, and Anan Wu "Collinear holographic data storage system", Proc. SPIE 8913, International Symposium on Photoelectronic Detection and Imaging 2013: Optical Storage and Display Technology, 891305 (20 August 2013); https://doi.org/10.1117/12.2031696

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