Shift Multiplex Recording of Four-Valued Phase Data Pages by Volume Retardagraphy

Applied Sciences

Daisuke Barada²  Hiroki Sekiguchi³  Takashi Fukuda¹  Shigeo Kawata² 

[1] Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-5676, Japan; E-Mail:;Graduate School of Engineering, Utsunomiya University, 7-1-2 Yoto, Utsunomiya, Tochigi 321-8585, Japan; E-Mail:;Center for Optical Research and Education (CORE), Utsunomiya University, 7-1-2 Yoto, Utsunomiya, Tochigi 321-8585, Japan; E-Mails:

关键词: retardagraphy;    polarization holography;    volume holographic memory;    optical data storage;    phase data page;    polarization-sensitive material;   

DOI  :  10.3390/app4020158

来源: mdpi

【 摘 要 】

In this paper, shift multiplex recording of phase data pages on a volume polarization-sensitive medium by retardagraphy is demonstrated. The origin of shift selectivity in volume retardagraphy is explained. In the experiment, four-valued phase data pages are used. Then, a coding method is proposed to correct a reconstructed phase pattern. The recorded phase data pages are reconstructed using the feature of the coding method. By comparing the reconstructed phase data pages with recording phase data pages, symbol error rates of less than 11% are achieved. From the experimental result, it is verified that volume retardagraphy is applicable to optical memory.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.