Patent ID: 7061961
Filing Date: 2006-06-13
Classification: G01J,G03F,H01S

Abstract:
1. A multi-chamber gas discharge laser system comprising: a first laser unit comprising: a first discharge region containing: a line narrowing unit for narrowing a spectral bandwidth of output laser light pulse beam pulses produced in said first discharge region; a second laser unit comprising: a second discharge chamber containing: a pulse power system providing electrical pulses to the first pair of electrodes and to the second pair of electrodes producing gas discharges in the lasing gas medium between the respective first and second pair of electrodes, and laser parameter control mechanism modifying a selected parameter of a selected laser output light pulse beam pulse produced by said gas discharge laser system by controlling the timing of the occurrence of the gas discharge between the first pair of electrodes and the occurrence of the gas discharge between the second pair of electrodes.