Laser Fundamentals
Beam Quality Factor M2
How far a real beam deviates from a theoretical Gaussian beam.
M² = (π·w₀·θ) / λ
Fill the inputs from a real part
Every number is read from that part's datasheet entry: peak power and pulse energy as rated, pulse width at the part's rated maximum.
Solve for
Inputs
Result
Live diagram
Drawn from the values above, redrawn as you type - the same physical schematic the mini-program shows.