Memory Beta, non-canon Star Trek Wiki

A friendly reminder regarding spoilers! At present the expanded Trek universe is in a period of major upheaval with the continuations of Discovery and Prodigy, the advent of new eras in gaming with the Star Trek Adventures RPG, Star Trek: Infinite and Star Trek Online, as well as other post-57th Anniversary publications such as the ongoing IDW Star Trek comic and spin-off Star Trek: Defiant. Therefore, please be courteous to other users who may not be aware of current developments by using the {{spoiler}}, {{spoilers}} OR {{majorspoiler}} tags when adding new information from sources less than six months old (even if it is minor info). Also, please do not include details in the summary bar when editing pages and do not anticipate making additions relating to sources not yet in release. THANK YOU


Memory Beta, non-canon Star Trek Wiki

The phaser (an acronym for PHASed Energy Rectification) is a standard weapon that has been issued to Starfleet personnel since the 23rd century.

Phasers project subatomic-particle beams (technically, nadions) which produce a wide variety of effects, ranging from Stun (technically, bioelectric shock) to Vaporization (technically, subatomic disruption).

Phasers can be fired in beams or pulses. They can also be set on overload to detonate like mines or grenades.


Hand-held weapons[]


A type-1 phaser from the year 2367.

Starfleet type 2 phaser, 2370s

A type-2 phaser from the year 2374.

Starfleet type 3 phaser rifle, 2360s

A type-3 phaser from the year 2367.

Phaser weapons have a heritage as far back as the 22nd century when Earth Starfleet began replacing its standard issue EM-33 plasma weapons with phase weapons. (ENT episode: "Broken Bow")

By the 23rd century Starfleet had developed laser weapons. (TOS episode: "The Cage")

The exact relation to the earlier phase weapons or later phasers is unknown, however it seems clear that lasers superseded phase weapons and were quite probably some form of intermediate technology and the name laser may be some form of colloquialism rather than a step back technologically.

The first weapons to actually be designated phasers were invented in 2256, introduced in the 2260s, and have continued to be used through various designs well into the 24th century. (Last Unicorn RPG module: All Our Yesterdays: The Time Travel Sourcebook)

The FASA Star Trek RPG sourcebook The Four Years War postulated an invention-date of 2254 for the phaser, during the earlier sectional skirmish against the Klingons bearing that name, which is consistent with the notion of a mid-2250s development-window.

See also[]

Starship weapons[]


The USS Enterprise firing phasers

Following a similar lineage to hand held weapons, starship phasers date their ancestry back to the 22nd century when Earth Starfleet introduced phase cannons. By the 23rd century these had developed into phaser banks which were fitted on most Starfleet vessels and could fire pulses and beams of phaser fire.

By the 24th century Starfleet vessels were as standard, fitted with phaser arrays, arrangements of phaser emitters positioned in strips along starships hulls to fire beams of phaser fire from all over the ship.


The USS Defiant firing its pulse phaser cannons

By the late 24th century, Starfleet phasers were capable of "thwarting" the creation of Tholian webs, however, the Tholians improved the web technology in order to be effective again. (TNG comic: "A Handful of Dust")

Following the Battle of Wolf 359 Starfleet concentrated its defensive strategies, part of which involved the development of the Defiant class which was fitted with pulse phaser cannon, weapons capable of producing powerful concentrated blasts of phaser fire.

Heavy phaser beam turret[]

Federation and other types

Earth and Federation phasers[]

Earth and Federation phaser types[]

FH-9 type

Phasered people[]

See also[]


Federation Starfleet hand-held weapons
Directed energy weapons type-1 phaser/hand phaser Sestra phaser IAtalskes phaser IIISestra phaser IBmark V personal phaser Seal of the Federation Starfleet
type-2 phaser/phaser pistol Sestra phaser IIAtalskes phaser IVSestra phaser IIBmark VI battle phaserphaser (Kelvin timeline)
type-3 phaser/phaser rifle phaser rifle (23rd century)mark VII phaser rifletype III phaser riflecompression phaser rifleenhanced compression riflephaser rifle (Kelvin timeline)
miscellaneous assault rifleinfinity modulatorisomagnetic disintegratorlaser pistollaser rifleneural disruptorphase pistolsniper rifle
Projectile weapons compound grenade launcherphoton burstquantum burstTR-116TR-120

External link[]