They put the unit in a reflective coated container with a mirror at each end. They position each mirror at each end. They position each mirror with precision instruments so that all emitted or reflected light will pass through the crystal. They put the laser body in a chassis and install tubing and wiring to the controls. They place a jacket around the assembly.
Technicians troubleshoot and repair laser systems and electro-optical devices.
To conduct tests, they use instruments like oscilloscopes and streak cameras. They align laser-related optical systems and operate laser systems. Technicians process photographic film and plates. They make, reconstruct, and record holograms. Technicians in the optical fiber communications industry use lasers to send messages.