Study of Side-Wall-Annealing for High Density Recording on a Track-Wobbled DWDD Disc

T. Miki; G. Fujita; T. Sakamoto; Y. Tanaka; A. Kato; S. Imanishi; Y. Akiyama

doi:10.3379/tmjpn2001.4.141

T. Miki, G. Fujita, T. Sakamoto, Y. Tanaka, A. Kato, S. Imanishi, Y. Akiyama

著者情報

キーワード: DWDD, MO, red laser, side-wall-annealing, wobble, magneto-optical recording, land and groove recording

ジャーナルフリー

2004 年 4 巻 4-2 号 p. 141-145

DOI https://doi.org/10.3379/tmjpn2001.4.141

詳細

抄録

The effect of the side-wall-annealing process on the domain wall mobility of a track-wobbled DWDD disc was investigated. Using a red laser and NA of 0.60, we obtained sufficiently low bit error rate and wide recording power tolerance on a one-side-wobbled land/groove substrate. Furthermore, wide tolerance of groove duty for characteristics of both MO and address was obtained. Track-wobble has no influence on the domain wall mobility and the side-wall-annealing technique is useful even for a track-wobbled high density DWDD disc.

責任著者(Corresponding author)

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