I made this in about 30 seconds. It's just a cylinder with Incandescence and glow intensity. When you select a color in the incandescence, bump up the brightness (V value) higher than 1. You can also bump up the saturation (S value) higher than 1 as well. Just keep playing with those two values and the glow setting until you get the desired look. If you composite the laser onto an image like I did, the glow will be MUCH MUCH less. In otherwords, you'll probably want to exagerate the glow effect in maya render to make it look correct in compositing. Hope this helps.
Don't be satisfied with what you can do but rather strive to do the things you can't do!