Patent ID: 7079564

Claim:
A two chambered gas discharge laser system having a first oscillator chamber creating a line narrowed seed laser light pulse beam of pulses optically applied to a second amplification chamber, comprising: a first pulse power circuit operatively connected to deliver electrical pulses to a pair of gas discharge electrodes in the first oscillator chamber, comprising a pulse power timing controller providing a first trigger signal to the first pulse power circuit; a second pulse power circuit operatively connected to deliver electrical pulses to a pair of gas discharge electrodes in the second amplification chamber, comprising a pulse power timing controller providing a second trigger signal to the second pulse power circuit, the second trigger signal being timed such that the difference between the first trigger signal and the second trigger signal, t amp −t osc , results in a selected portion of the seed laser light pulse beam pulse traversing the population inversion in the second amplification chamber, at least once, being the portion of the seed laser light pulse beam pulse with the most desirable bandwidth.