Laser
A simple directed energy technology that nearly every spacefaring civilization utilizes in one form or another. However, while more primitive designs are limited to visual frequencies, emitters of the Federation and other comparable powers operate in the X-ray and gamma spectrum.
Utility
Lasers can be used as part of optical communication systems, wireless power transmission, and most notably, as weapons. Simple lasers concentrate energy in the visual spectrum; more sophisticated designs like those of the Federation operate in the X-ray frequencies and beyond.
Access & Availability
Lasers are a basic tool and weapon in literally every developed civilization.