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
90 µm
measured
Spot area
6.36e-5 cm²
Avg power
6 W
Areal dose
40 J/cm²
energy per unit area
Delivered power
6 W
Line energy
0.04 J/mm
Dwell time
0.6 ms
Peak irradiance
1.89e+5 W/cm²
Gaussian centre
Line overlap
gap
Avg irradiance
9.43e+4 W/cm²
Energy deposition heatmap
Accumulated dose over a 0.8 mm square of surface. Continuous scan tracks.
continuous coverage
200 µm
0local dose (J/cm²)71
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.