Ophir Photonics Group has released the 3A-PF-12 thermal power/energy laser measurement sensor for short pulsed lasers. Part of the 3A-P family of laser sensors that measure power up to 3W, the 3A-PF-12 is an ultra sensitive sensor that can measure powers from as low as 15µW up to 3W and energies from as low as 20µJ to 2J. The new sensor replaces the P type absorber with the high damage threshold PF type, giving it a very high energy density damage threshold for repetitive pulses.
Designed for use with YAG and its harmonics and excimer lasers, the 3A-PF-12 is a thermal power/energy sensor with low noise of 4µW and low drift of 5-30µW. It delivers high energy density damage threshold in the industry, up to 1.5J/cm2 for repetitive ns pulses. The sensor features a 12mm aperture and broad wavelength range of 0.15–20µm.