Patent ID: 7720120

Claim:
A laser control system, comprising: an oscillator gas chamber; an amplifier gas chamber; a first voltage input operatively connected to deliver electrical pulses to a first pair of electrodes within the oscillator gas chamber and a second pair of electrodes within the amplifier gas chamber; an output of the gas chambers is an energy dose calculated by a trapezoidal window; a control circuit connected to the first voltage input for modifying the first voltage input, the control circuit further comprising an energy dose feedback circuit calculated as V dose =−K xd, where K is a state feedback vector computed as a solution of a linear quadratic regulator that minimizes a weighted sum of the square of an energy error and the square of an energy dose error and xd is a vector characterizing a state of a dose operator; and a feedback control loop communicating an output of the gas chambers to the control circuit for modifying the first voltage input.