High density collinear holographic data storage system
(Conference Presentation)

Xiaodi Tan; Hideyoshi Horimai; Ryo Arai; Junichi Ikeda; Mitsuteru Inoue; Xiao Lin; Ke Xu; Jinpeng Liu; Yong Huang

doi:10.1117/12.2239770

2 November 2016 High density collinear holographic data storage system (Conference Presentation)

Xiaodi Tan, Hideyoshi Horimai, Ryo Arai, Junichi Ikeda, Mitsuteru Inoue, Xiao Lin, Ke Xu, Jinpeng Liu, Yong Huang

Proceedings Volume 9959, Optical Data Storage 2016; 995909 (2016) https://doi.org/10.1117/12.2239770
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

Collinear holography has been good candidate for a volumetric recording technology of holographic data storage system (HDSS), because of there are not only large storage capacities, high transfer rates, but also the unique configuration, in which the information and reference beams are modulated co-axially by the same spatial light modulator, as a new read/write method for HDSS are very promising. The optical pickup can be designed as small as DVDs, and can be placed on one side of the recording media (disc). In the disc structure, the preformatted reflective layer is used for the focus/tracking servo and reading address information, and a dichroic mirror layer is used 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. As servo technologies are being introduced to control the objective lens to be maintained precisely to the disc in the recording and reconstructing process, a vibration isolator is no longer necessary. In this paper, we introduced the principle of the collinear holography and its media structure of disc. Some results of experimental and theoretical studies suggest that it is a very effective method. We also discussed some methods to increase the recording density and data transfer rates of collinear holography using phase modulated page data format.

Conference Presentation

Citation Download Citation

Xiaodi Tan, Hideyoshi Horimai, Ryo Arai, Junichi Ikeda, Mitsuteru Inoue, Xiao Lin, Ke Xu, Jinpeng Liu, and Yong Huang "High density collinear holographic data storage system (Conference Presentation)", Proc. SPIE 9959, Optical Data Storage 2016, 995909 (2 November 2016); https://doi.org/10.1117/12.2239770

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KEYWORDS

Holographic data storage systems

Holography

Modulation

Servomechanisms

Data storage

Digital holography

Digital recording

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