MAGNETO-OPTICAL STORAGE

摘要

A magneto-optical storage for recording data onto a magneto-optical recording medium. The magneto-optical recording film (43) is irradiated with a first light spot (61) of a small diameter, and with a second light spot (62) having a large diameter and concentric with the first spot. The temperature around the recording position is changed between room temperature (TROOM) and a temperature higher than a compensation temperature (TCOMP) of the recording film (43) due to the irradiation with the second light spot (62), and the intensity of the first light spot (61) is modified depending upon the data to elevate the temperature at the recording position near the Curie point (Tc) of the recording film (43), in order to erase the old data that have been recorded and to write new data.