Patent ID: 6798803
Filing Date: 2004-09-28
Classification: H01S

Abstract:
A gas laser device, comprising:an electric charge transfer circuit which has a plurality of transfer capacitors and at least one saturable reactor, uses magnetic saturation of the saturable reactor to sequentially transfer an electric charge from a front-stage transfer capacitor to a back-stage transfer capacitor to cause an electric discharge across discharge electrodes which are connected to a final-stage transfer capacitor so to emit pulse laser light; a charging capacitor which accumulates electric charges to be transferred to a first-stage transfer capacitor among the transfer capacitors; electric charge amount measuring means which measures an amount of electric charges accumulated in the charging capacitor; compensation trigger output means which determines a compensation time corresponding to the electric charge amount to make constant a time between the input of an outer trigger and the emission of light across the discharge electrodes for each pulse and outputs a compensation trigger after the lapse of the compensation time from the input of the outer trigger; and a switch which electrically connects the charging capacitor and the first-stage transfer capacitor according to the input of the compensation trigger.