“…The total power output of the lasers can vary widely. Fractions [48,52], tens [49,53], hundreds [51,[54][55][56][57], thousands [50,[57][58][59][60], and millions [61,62] of Watts have been reported, however short beam pulses (on the order of ~1 ns) put total energy outputs to less than 1 J. CW lasers are difficult to construct due to the power limitations of most electron gun devices operating in steady state conditions. Typical optical power output is on the order of 1 mW [52,63].…”