| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical recorder capable of recording data on a phase change optical recording medium which is high in low-order compatibility at a high linear velocity. <P>SOLUTION: In the optical recorder, which forms a recording mark on the phase change optical recording medium by the irradiation of a light of the emitting waveform from the optical pickup, according to a pulse string provided with a plurality of pulse parts of the width T, each of which is constituted by a paired heating pulse and cooling pulse, and composed of a leading part having a pair of heating pulse and cooling pulse, an intermediate part having one or plural pairs of the heating pulse and cooling pulse, and a back end part having a pair of heating pulse and cooling pulse at the back end, the irradiation power Pb1 of the light emitted from the optical pickup in the cooling pulse at the back end part is made different from the irradiation power Pb2 of the light emitted from the optical pickup in the cooling pulse at the leading part and intermediate part. <P>COPYRIGHT: (C)2004,JPO |
