A directed energy weapon is a weapon that inflicts damage via a beam or pulse of electromagnetic radiation, high-energy particles, or more exotic forms of energy. In most space-faring civilizations, directed energy weaponry had replaced projectile weapons, which tended to be regarded as more "primitive". The most common types of directed energy weapon are phasers and disruptors, though a wide range of other energy-based weapons have also been developed. (TOS; TNG; DS9; ENT)

In the Alpha Quadrant, subspace weapons such as isolytic bursts were forbidden by the Khitomer Accords. (Star Trek: Insurrection)

Advanced weapons existed, in the forms of the planet-destroying antiproton beam mounted on the so-called "planet killer". Federation technology had very little to match this technology when faced with one such weapon in 2267. (TOS: "The Doomsday Machine") The Xindi weapon was another planet-killer utilizing a directed-energy beam, but it was destroyed before the Sphere-Builders, manipulating the Xindi, had an opportunity to complete their plan by using the device on Earth. (ENT: "The Expanse"; ENT Season 3)

The Ennis, a Gamma Quadrant species, stopped using directed energy centuries before 2369, as it was, in Golin Shel-la's words, "not damaging enough". (DS9: "Battle Lines")

Directed energy weapons Edit

Ship-mounted Edit

Planet-based Edit

Hand-held Edit

Other Edit