Improvements to an optical recording apparatus comprising a laser light
source are provided. The improvements include installing a photodiode in
an optical path of at least a portion of the laser light beam from the
laser light source, and connecting said photodiode to a detection
circuit. The photodiode detects the laser light beam and generates a
detection signal based on the detected beam. The detection circuit
monitors the detection signal and generates an alarm signal if the
detection signal indicates a dropout in the laser beam. The alarm signal
can trigger an alarm indicator and/or cause a recording process to be
halted.