Wrong efficiency of less than 30%
Todays laser technique is capable of converting nearly 60% of energy into light - especially if you use semiconductor based materials. As far as I see from the very vague description of the weapons type it uses a combination of several beams of lasers using light of different wave lengths. Each of these lasers can be "pumped" up with relative "low" energy of only 100 w. Combining these lasers into a device would result into a more powerfull beam. With this type of technology you can produce beams far more powerfull just by adding more lasers of eather the same, or slightly different, wave length.
Biting the hand that feeds IT
