Coherent Inc. has extended its series of large-area, high-speed, PowerMax-Pro laser detectors to enable power measurement of continuous-wave laser beams of 3 kW, and 5 kW peak power with modulated laser beams. PowerMax-Pro detectors, first introduced in 2014 and based on Coherent’s proprietary thin film sensor technology, combines the broad wavelength sensitivity, dynamic range and laser damage resistance of a thermopile, with the response speed of a semiconductor photodiode.