Patent ID: 7336691

Claim:
A method of operating first and second pulsed lasers, comprising: delivering first and second sequences of one of individual pulses and bursts of pulses from respectively the first and second pulsed lasers along respectively first and second beam paths; rotating a rotatable member in said first and second beam paths, said rotatable member having opposed first and second surfaces, said rotatable member including at least one reflective area and one transmissive area; and aligning said first beam path with the first surface of said rotatable member and aligning said second beam path with the second surface of said rotatable member, and synchronizing said rotation of said rotatable member with the delivery of said first and second sequences such that an individual pulse or a burst of pulses from said first sequence thereof is transmitted past said rotatable member through said transmissive area of said rotatable member and an individual pulse or a burst of pulses from said second sequence thereof is reflected by said reflective area of said rotatable member along a common path with said transmitted individual pulse or burst of pulses from said first sequence thereof, but at a different time.