OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE

摘要

An optical information recording/reproducing device is provided with a light source (1) for projecting laser beams for optically accessing an information recording medium; a laser driving circuit (51a) for supplying a semiconductor laser of the light source (1) with a driving current; a high frequency superposition current generating circuit (51c) for adding a high frequency superposition current to the driving current; a temperature sensor (35) for detecting the temperature close to the light source (1); and a control part for switching the value of the high frequency superposition current based on the detected temperature.