Laser Fundamentals
Gaussian Beam Divergence
Far-field half-angle divergence at the diffraction limit.
θ = λ / (π · w₀)
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.