A miniature laser is a component of a microscope laser.

Doctor Leonard McCoy kept his miniature lasers with the lab shelf supplies aboard the USS Enterprise. After the crew became miniaturized, Christine Chapel offered to get the miniature laser for McCoy to use the microscope laser to repair Hikaru Sulu's broken leg. (TAS: "The Terratin Incident")

Laser technology
Tools: autosuture • bone-knitting laser • laser beacon • laser drill • laser scalpel • laser scanner • laser torch • laser welder • microscope laser • miniature laser • nanopulse laser • tri-laser connector
Weapons: Artonian laser • cutting beam • laser cannon • laser detonator • laser pistol • pulse laser • x-ray laser
Other: laser fusion initiator • laser micrometer • LIDAR • optic nerve laser welding • laser pulse system