Square pulse conversion

Learn more in Power Meter and Sensor Tutorial on Thorlabs.

ν		Hz
T = 1 ∕ ν		s
τ		s
D = τ ∕ T		-
Pa = Pp D		W
Pp = Pa ∕ D		W
W = Pp τ = Pa T		J
d		cm
A = ¼ π d2		cm2
Ψa = Pa ∕ A		W ∕ cm2
Ψp = Pp ∕ A		W ∕ cm2
ξ = W ∕ A		J ∕ cm2

ν - repetition rate, T - pulse period, τ - pulse duration, D - duty cycle, P_a - pulse average power, P_p - pulse peak power, W - energy.

d - beam diameter, A - beam area, Ψ_a - average power density, Ψ_p - peak power density, ξ - pulse energy density.

For a circular beam with a square pulse train only.