Thermal model analysis on the write strategy of phase-change optical disk

The write strategy of the phase-change optical disk determines its read-out performance, and optimizing the write strategy is an important step of the recording process on the disk. The action on the phase-change material from the laser comes down to the thermal effect of the laser. In this paper, the temperature rise curves under different write strategies have been discussed at the aspect of thermal modal, and the optimum write strategy is brought forward, which could direct the actual write process design.