Abstract:Abstruct-Magneto-optical disks with metal guiding layers have spiral guiding bands which works as slits placed close to recording layers. The divided push-pull signal has been improved by using Cr as guiding layers. The disk noise for the track pitch of 0.85 !..lIn is lower than that of a pre-grooved glass disk with the track pitch of 1.6 J..lI1l. It is confirmed that the disk noise which arises at the edges of the spiral Cr guides is very small. The maximum CNR of 47.3 dB and 54.0 dB were obtained at 3.73 MHz… Show more
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