Patent ID: 8218589

Claim:
A high-energy laser weapon system comprised of: a. tracker means for determining angle and range of a target with respect to said weapon system; b. means for producing a high-energy laser beam; c. means for directing said high-energy laser beam onto said target at a desired aim point; d. means for periodically producing a negative pulse of 0.2 to 200 microseconds duration, said negative pulse being the time said high-energy laser beam is turned off; e. a wavefront sensor to measure the high-energy laser beam return from said target during said negative pulse; f. a switching means for blocking the high-energy laser beam return reflected off of said target to said wavefront sensor except during said negative pulse plus approximately 0.1 microsecond; and g. a deformable mirror driven by said wavefront sensor, whereby wavelength anisoplanatism of said high-energy laser beam is avoided.