This video shows some of the lasers used in the laser fusion process. Just seeing how large these laser units are, you can easily see why laser fusion isn't a good form of alternative energy yet. One of the goals to making it more efficient include making the lasers smaller and able to run on less energy.
This video starts out with a neat clip showing a facility where they are currently trying to perfect the laser fusion process. It gives a good visualization of how the process takes place.