Laser calculator

Pick your laser, enter your LightBurn settings, read off the physics.

Laser source

Diode455 nm·12 Wspecs

Target material (optional — enables thermal model)

The operating parameters you dial into your job.

Power60 %

Speedmm/smax 400 mm/sLine intervalmm10 lines/mm

PWM duty1

modulation duty cycle

Passes

Adjust to match your exact hardware. Defaults from the selected laser.

continuous-wave

Spot Ø

100 µm

measured

Spot area

7.85e-5 cm²

Avg power

7.2 W

Areal dose

48 J/cm²

energy per unit area

Delivered power

7.2 W

Line energy

0.048 J/mm

Dwell time

0.67 ms

Peak irradiance

1.83e+5 W/cm²

Gaussian centre

Line overlap

Avg irradiance

9.17e+4 W/cm²

Accumulated dose over a 0.8 mm square of surface. Continuous scan tracks.

continuous coverage

200 µm

0local dose (J/cm²)77

Select a target material to model peak surface temperature and the marking regime.

How areal dose responds as one setting varies — everything else held at your current values.

Vary (x-axis)Show (y-axis)

Dashed line marks your current speed = 150 mm/s.