Day: October 31, 2026

In short SWIR starts where visible-light sensors fade. Above about 1.1 µm you need a SWIR profiler. IZAK’s SWIR family covers 400–2050 nm in six models. Check both ends of the band. At 1030–1064 nm both the UV–VIS–NIR and the SWIR families work. Above 2.05 µm, for example holmium at 2.1 µm, use the MWIR […]

In short Use a global-shutter sensor. All pixels expose at the same moment, so a short pulse lands on the whole image. Rolling-shutter sensors suit CW lasers only. Decide how many pulses each frame should hold. One pulse per frame needs a trigger. Ten or more pulses per frame give a stable, averaged beam without […]

In short Beam profiling shows where the energy is. It measures the spatial intensity of a laser beam: width, position, shape and divergence, and it is the basis of beam-quality (M²) measurement. Use one width definition and say which. D4σ (ISO 11146 second moment), 1/e², FWHM and knife-edge widths give different numbers for the same […]

In short Start from your smallest beam. Aim for about 20 pixels across it (10 at the very least). Its diameter divided by 20 is the largest pixel pitch that measures it well without optics. Then check your largest beam. Keep it under about one third of the sensor width so the wings are not […]