Laser calculator
Pick your laser, enter your LightBurn settings, read off the physics.
Laser & material
LightBurn settings
The operating parameters you dial into your job.
Power60 %
PWM duty1
modulation duty cycleSource parameters
Adjust to match your exact hardware. Defaults from the selected laser.
Derived metrics
continuous-wave
Spot Ø
150 µm
measured
Spot area
1.77e-4 cm²
Avg power
48 W
Areal dose
320 J/cm²
energy per unit area
Delivered power
48 W
Line energy
0.32 J/mm
Dwell time
1 ms
Peak irradiance
5.43e+5 W/cm²
Gaussian centre
Line overlap
33%
Avg irradiance
2.72e+5 W/cm²
Energy deposition heatmap
Accumulated dose over a 1.2 mm square of surface. Continuous scan tracks.
continuous coverage
500 µm
0local dose (J/cm²)360
Select a target material to model peak surface temperature and the marking regime.
Sensitivity sweep
How areal dose responds as one setting varies — everything else held at your current values.
Dashed line marks your current speed = 150 mm/s.