Patent ID: 7596164
Filing Date: 2009-09-29
Classification: H01S

Abstract:
1. A method of operating a gas discharge laser having a master oscillator potion, producing line narrowed seed laser light output pulses and a power amplifier portion, receiving and amplifying the line narrowed seed laser light output pulses into power amplifier laser light output pulses, in a burst of pulses during an on period, followed by an off period, and providing electrical discharge pulses across gas discharge electrodes in each of the master oscillator portion and power amplifier portion, comprising: charging a first capacitor and a second capacitor in parallel to a commanded charging capacitor voltage; timing a gas discharge in each of the master oscillator portion and the power amplifier portion as a function of the commanded charging capacitor voltage determined for an upcoming gas discharge pulse in each of the master oscillator portion and the power amplifier portion, from the first capacitor and the second capacitor, respectively; applying correction for temperature drift based upon temperature change in an electrical discharge pulse power system providing the electrical discharge pulses; and, applying correction for respective errors in delay of the master oscillator portion and power amplifier portion.