DOI: 10.1143/jjap.32.5320. A High-Density Phase-Change Optical Disk System Possessing Read/Write Compatibility with 90 mm Magneto-Optical Disks

A High-Density Phase-Change Optical Disk System Possessing Read/Write Compatibility with 90 mm Magneto-Optical Disks

10.1143/jjap.32.5320

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

High-density recording characteristics of phase-change optical disks were studied using 2-7 pulse-position-modulation (ppm) in-groove recording. Carrier-to-noise-ratio (CNR) was over 50 dB at a mark length of 0.60 µm and the crosstalk at the track pitch of 1.10 µm was less than -30 dB. In addition, a 256 MB 90 mm overwritable PC optical disk system having read/write compatibility with the ISO 128 MB MO disk has been developed based on the acquired results. The drive is based on the 90 mm MO drive at a wavelength of 780 nm and NA of 0.53. The user capacity of 256 MB was achieved using a mark length of 0.63 µm, track pitch of 1.25 µm, 2-7 ppm in-groove recording, and MCAV with 10 zones. The number of sectors per track was varied from 31 to 49.

Bibliography

Ichinose, M., Ishida, T., Takagi, Y., Ito, M., Ohara, S., Satoh, I., Okazaki, Y., & Imanaka, R. (1993). A High-Density Phase-Change Optical Disk System Possessing Read/Write Compatibility with 90 mm Magneto-Optical Disks. Japanese Journal of Applied Physics, 32(11S), 5320.

Authors 8

Makoto Ichinose (first)
Takashi Ishida (additional)
Yuji Takagi (additional)
Motoshi Ito (additional)
Shunji Ohara (additional)
Isao Satoh (additional)
Yukinori Okazaki (additional)
Ryoichi Imanaka (additional)

References 3 Referenced 2

10.1117/12.45923 / Proc. SPIE (1991)
10.1143/JJAP.28S3.129 / Proc. Int. Symp. Optical Memory, 1989, Jpn. J. Appl. Phys. (1989)
10.1143/JJAP.26S4.61 / Proc. Int. Symp. Optical Memory, 1987, Jpn. J. Appl. Phys. (1987)

Dates

Type	When
Created	20 years, 6 months ago (Feb. 22, 2005, 9:31 p.m.)
Deposited	2 years, 8 months ago (Dec. 6, 2022, 5:31 p.m.)
Indexed	6 months ago (Feb. 21, 2025, 5:35 a.m.)
Issued	31 years, 9 months ago (Nov. 1, 1993)
Published	31 years, 9 months ago (Nov. 1, 1993)
Published Print	31 years, 9 months ago (Nov. 1, 1993)

Funders 0

None

BibTeX

@article{Ichinose_1993, title={A High-Density Phase-Change Optical Disk System Possessing Read/Write Compatibility with 90 mm Magneto-Optical Disks}, volume={32}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.32.5320}, DOI={10.1143/jjap.32.5320}, number={11S}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Ichinose, Makoto and Ishida, Takashi and Takagi, Yuji and Ito, Motoshi and Ohara, Shunji and Satoh, Isao and Okazaki, Yukinori and Imanaka, Ryoichi}, year={1993}, month=nov, pages={5320} }

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