Frozen Blaster Technology
this was the name given to the theory and technology behind the first lightsabers ever produced in the galaxy. Knowing that laser and blaster weapons could produce coherent bolts of light and energy, the ancient Jedi hoped to "freeze" the energy into a solid blade. These early lightsabers required tremendous amounts of power, which could only be provided by dedicated generators. Thus, these early weapons - known as archaic lightsabers by Jedi scholars - were primarily siege weapons with the power pack strapped to the wielder's back.