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

Autor: Daisuke Barada, Hiroki Sekiguchi, Takashi Fukuda, Shigeo Kawata, Toyohiko Yatagai
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Applied Sciences, Vol 4, Iss 2, Pp 158-170 (2014)
Druh dokumentu: article
ISSN: 2076-3417
DOI: 10.3390/app4020158
Popis: 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.
Databáze: Directory of Open Access Journals