They just managed to shrink it down to size. Make a short resonant cavity that runs constant wave, insert a passive q-switch the size of your head, track using an infra red quadrature based precision detector , target and fire the laser head that's mounted in a extremelly precise and fast gimbal mount. Add as much Oxygen and Iodine gas as you wish, excite by mixing gases and the normally Megawatt laser gets pulsed up by the passive q-switch, then "Voila" no more rocket.
Ain't technology marvelous...
Well, since you put it that way...
:lol:
Remember the future?, That'd today, as you imagined it yesterday.