Title :
Large-capacity magneto-optical disk system using magnetically induced super resolution
Author :
Yoshimura, Shunji ; Nakao, Lsamu ; Fukumoto, Atsushi ; Kaneko, Masahiko ; Owa, Hideo
Author_Institution :
Sony Corp., Tokyo, Japan
fDate :
8/1/1992 12:00:00 AM
Abstract :
Magnetically induced superresolution (MSR) technology expands the readout resolution limit of the optical disk system. A MSR-by-RAD (rear aperture detection) disk, was used to demonstrate a crosstalk level of less than -44 dB at a track pitch of 0.8 μm and a carrier-to-noise ratio of 45 dB at a mark length of 0.4 μm. The results show the feasibility of a magneto-optical disk system with a recording capacity six times larger than that of the current ISO disk system
Keywords :
magneto-optical recording; 0.4 micron; 0.8 micron; carrier-to-noise ratio; crosstalk level; magnetically induced super resolution; magneto-optical disk system; readout resolution limit; rear aperture detection; recording capacity; track pitch; Apertures; Coercive force; Disk recording; Magnetic films; Magnetooptic recording; Optical crosstalk; Optical films; Optical recording; Signal resolution; Temperature;
Journal_Title :
Consumer Electronics, IEEE Transactions on
