The amount of radiant energy concentrated on a surface.
An accessory used to monitor laser beam power at the rear reflector, tune the beam for optimum power, or monitor power delivered to the work station.
A controlled change in the power level of a laser beam, either linearly, as up a ramp, across, and down again—or in several discrete steps. Useful for smooth completion of circular welds and for preventing fractures from rapid cooling.
The duration of a laser pulse, typically measured as the time interval between the half-power points on the leading and trailing edges of the pulse.
Microsecond (µs) = 10-6s
Nanosecond (ns) = 10-9s
Picosecond (ps) = 10-12s
Femtosecond (fs) = 10-15s[/box]
The power of a single, brief emission from a laser programmed for pulsed behavior rather than continuous operation. Pulse energy can be several times greater than CW emission.