METHOD OF pulsed mode lasing in laser unit based on solid-state laser on the crystal ND: YAG WITH DIODE PUMPING active medium

摘要

1. A method of controlling a pulsed lasing mode in a laser installation based on solid-state laser crystal is Nd: YAG diode pumped gain medium having a laser diode, laser amplitude modulator and the control unit amplitude modulator and power of the laser diode, which consists in the original assignment through the control unit amplitude modulator and the laser diode power idle current of the laser diode at the open mode amplitude modulator, the idle value current does not exceed the threshold value, then turn on the operating pulse mode of the laser diode power for pumping the active medium, in parallel with the mode power laser diode pulsed operation of the amplitude modulator, the pulse mode amplitude modulator provided preconditioning modulator to the control voltage and further a modulator switch on the control voltage, wherein the supply of low frequency pulsed control voltage on Vp itudny modulator by an amplitude modulator of the control unit within the pulse effected with a time delay relative to powering the laser diode characterized in that the supply to the low frequency pulse amplitude modulator control voltage with respect to activate the laser diode power supply provides a pulse with a time delay Δt, defined by the condition Δt≥ Δt = 100 (11-5α) t, wherein Δt- minimum delay time of the amplitude modulator, t- lifetime of the active laser medium at the upper center uro