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High density magneto-optical recording using 0.67 μm band high power laser diode

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6 Author(s)
Y. Yamanaka ; NEC Corp., Kawasaki, Japan ; K. Kubota ; H. Fujii ; K. Kobayashi
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High-density optical recording on a magnetooptical disk has been achieved by a compact optical head that uses a 0.67-μm-band high-power visible-light laser diode. The recording density has been improved to 1.5 times that for conventional optical recording, using a 0.83-μm laser diode, as a result of the increase in linear density and track density. The C/N ratio for the readout signal is greater than 50 dB

Published in:

IEEE Transactions on Magnetics  (Volume:24 ,  Issue: 6 )