DVD Recorders are rapidly gaining popularity as outboard recorders for PCs, and as such consumers desire higher recording speeds. Double-layered disks *1 with nearly twice the recording capacity of single-layered disks are becoming common as well.
Currently, although 16x writing-speed equipment has been commercialized for single-layered disks using Red Laser Diode (LD: Laser Diode) with light output of 250mW, it is only up to 4x writing-speed for double-layered disks, and light output of 350mW is required in order to record at 16x on double-layered DVD±R disks.
We have developed a High-output Red Laser Diode with light output of 350mW, the top level in recording DVD equipment, by further optimizing the device structure of Laser Diodes.
*1: Achieved 8.5GB with Single-sided double-layered
recording. Also called Double Layer (DL) disks