Designed for use with YAG and its harmonics and excimer lasers, 3A-PF-12 can measure powers from 15 µW to 3 W and energies from 20 µJ to 2 J. PF type absorber maximizes damage threshold (1.5 J/cm²) for repetitive ns pulses. Designed for short pulsed lasers, this thermal power/energy laser measurement sensor, with 12 mm aperture and 0.15–20 µm wavelength range, exhibits noise of 4 µW and drift of 5–30 µW.