High-Density Recording on a Dual-Layer Phase Change Disk Using Partial Response Maximum Likelihood Method

Autor:	Mamoru Shoji, Harumitsu Miyashita, Noboru Yamada, Naoyasu Miyagawa, Atsushi Nakamura, Takashi Ishida
Rok vydání:	2003
Předmět:	Partial-response maximum-likelihood Linear density Blue laser Materials science Physics and Astronomy (miscellaneous) business.industry General Engineering General Physics and Astronomy law.invention Power (physics) Lens (optics) Tilt (optics) Optics law Bit error rate business Diode
Zdroj:	Japanese Journal of Applied Physics. 42:1072-1073
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.42.1072
Popis:	The possibility of obtaining 50 GB capacity/side has been studied using a blue laser diode, a high-NA objective lens and a dual-layer phase change disk. Using the partial response maximum likelihood method (PRML), which is a superior method of decreasing bit errors at a high linear density, we have obtained a low bit error rate less than 3×10-5, wide radial and tangential tilt margins, and wide power margins in both recording layers of a dual-layer disk.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0294d25376e23203a5b62d1194666c12 https://doi.org/10.1143/jjap.42.1072 Zobrazit plný text záznamu