Patent ID: 8422521
Filing Date: 2013-04-16
Classification: B23K,H01S

Abstract:
1. A laser device of an equal-energy pulse synchronous with motion, comprising: a resonant cavity, outputting a plurality of pulses with stable pulse-width and energy; a beam switch modulator, selectively enabling one of the pulses output by the resonant cavity to pass; a beam energy modulator, adjusting the energy of the pulse passing through the beam switch modulator according to a power feedback signal and outputting the pulse for processing; an optical power sensor, sensing the energy and the pulse-width of the pulse output by the beam energy modulator; an optical feedback controller, connected electrically between the optical power sensor and the beam energy modulator, and outputting the power feedback signal to the beam energy modulator according to a piece of processing motion information and the energy sensed by the optical power sensor, wherein the processing motion information comprises a relative motion parameter for the pulse and a processing member; a trigger controller, connected electrically to the optical power sensor and the beam switch modulator, wherein the trigger controller triggers the beam switch modulator to turn on, measures a time difference between time of trigger and time when the optical power sensor detects the pulse, and corrects a turn-on time point of the beam switch modulator according to the time difference and the processing motion information; and a motion controller, connected electrically to the optical feedback controller and the trigger controller, and transmitting the processing motion information to the optical feedback controller and the trigger controller.