Optical disc apparatus and method for performing optical power study thereof

摘要

An optical disc apparatus and a method for performing optical power study thereof can prevent errors for a power study result, which may be generated in a condition that the output power of a laser diode (LD) is saturated at a high temperature, in which the power study detects output characteristics of the LD. The optical disc apparatus includes a laser output device which outputs a laser beam in response to a light output control signal, a sensor which detects some of the outputted laser beam to output a signal corresponding to the outputted laser beam, and a controller which applies the light output control signal of a certain range to the laser output device and which calculates characteristics of the laser output power which is outputted from the laser output device in response to the light output control signal, based on the output signals of the sensor, which correspond to the light output control signal, and whether the laser output device is in a saturated state. Therefore, the optical disc apparatus can prevent errors of the result of the power study procedure generated due to power saturation of the LD at a relatively high temperature, and can correctly obtain the result of the power study procedure at a relatively low temperature.