Patent ID: 8855153

Claim:
A laser machining control system, comprising: a laser diode for emitting a laser light beam; a laser power controller connected to the laser diode and configured to control a voltage and a current input to the laser diode, thereby controlling an output power of the laser diode; a light transmission-reflection element positioned on a light path of the laser light beam to a workpiece, the light transmission-reflection element configured to allow a part of the laser light beam to transmit therethrough to reach the workpiece, and reflect the other part of the laser light beam; an output power meter configured to detect the reflected part of the laser light beam and measure an output power of the laser diode according to the detected reflected laser light beam, the laser power controller configured for adjusting the voltage and the current input to the laser diode according to the output power measured by the output power meter, thereby maintaining output power of the laser diode at a predetermined level; and a reflection element configured to reflect the other part of the laser light beam reflected by the light transmission-reflection element to the output power meter.