The advent of the quantum laser will allow more power to be packed in the same amount of space, by packing the photon punches tighter together – not only in how far apart they are on the x and y factors, but also the z factors – in terms of how small the lasers are, and how many photons they can produce.
There is also the capability of using entanglement to take out missiles and other types of enemy targets, by programming the lasers to send a beam of deadly information from Point A to Point B via Catalyst C.
The combination of the two lights at their intersection is what would cause the weapon to be a weapon of mass destruction. It would essentially be able to split atoms with light.