| 摘要 |
<p>A laser power control device, optical head and optical recording and/or reproducing apparatus to set and control the output power of laser light radiated from a plurality of laser sources. The laser power control device is provided with plural variable resistors associated with the plural laser sources, a photodetector unit associated with the plural laser sources, and a laser output stabilizing unit for controlling the laser light output power at a constant predetermined level. The resistance values of the variable resistors are set so that the output power of the laser light radiated from the laser sources is at the predetermined level. <IMAGE></p> |
