OPC-performing method restudying optical source drive characteristics after OPC recording and OPC measurement and optical recording/reproducing apparatus using the same

摘要

An optical recording/reproducing apparatus and an OPC-performing method are provided for restudying drive characteristics of an optical source (114) after performing OPC test recording and OPC measurement to ensure accurate optimum power control (OPC) for recording data on an optical disc (100), particularly, when the drive characteristics vary according to temperature changes of the optical source (114). The OPC-performing method comprises performing OPC recording as test recording for OPC and OPC measurement as measurement of an OPC recording state; performing a power analysis of drive characteristics of an optical source (114), and obtaining optical source drive characteristics after the OPC recording and the OPC measurement; and performing OPC calculation for determination of an optimum optical source drive level as an optical source drive level for enabling optimum beams of optimum recording power to be emitted from the optical source (114), based on the OPC recording state and the optical source drive characteristics obtained. As a result, an optimum optical source drive level can be accurately obtained, since the OPC calculation is performed based on the optical source drive characteristics after the temperature of the optical source (114) has increased.