109 Gbit/in.2 Recording on Near-Field Optical Disc Using Combination of Partial-Response Channel and Low-Density Parity-Check Code

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概要

• 論文の詳細を見る

• The signal properties were examined at recording densities higher than 100 Gbit/in.2 in our solid immersion lens recording system of 1.84 numerical aperture (NA). The low-density parity-check coded partial-response (PR) 17-parity preserve/prohibit (PP) system increased the recording density by approximately 35% compared with the previous results. The recording power tolerance was $\pm 8.1$% at a recording density of 109 Gbit/in.2. We conclude that the upper limit of recording density is 109 Gbit/in.2, which is equivalent to 151 Gbytes for a 12-cm-diameter disc, assuming the same redundancy as that of the Blu-ray disc format.

• 2009-03-25

著者

• Nakaoki Ariyoshi

  Advanced Optical Systems Laboratory, Advanced Material Laboratories, Sony Corporation, 4-14-1 Asahi-cho, Atsugi, Kanagawa 243-0014, Japan

• Watanabe Tetsu

  Video Business Group, Sony Corporation, Shinagawa-ku, Tokyo 141-0001, Japan

• Kawakubo Osamu

  Advanced Materials Laboratories, Sony Corporation, Atsugi, Kanagawa 243-0014, Japan

• Ohkubo Takahiro

  Video Business Group, Sony Corporation, Shinagawa, Tokyo 141-0001, Japan

• Yamagami Tamotsu

  Video Business Group, Sony Corporation, Shinagawa, Tokyo 141-0001, Japan

• Nakaoki Ariyoshi

  Advanced Materials Laboratories, Sony Corporation, Atsugi, Kanagawa 243-0014, Japan

関連論文

• Lensless Surface Plasmon Head with 1 Tbit/in.2 Recording Density
• 109 Gbit/in.2 Recording on Near-Field Optical Disc Using Combination of Partial-Response Channel and Low-Density Parity-Check Code
• High-Density Recording with a Near-Field Optical Disk System Using a Medium with a Top Layer of High Refractive Index

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