Request InfoAcal BFi UK Ltd.Bfi Optilas International SAS has introduced the 3A-P-FS, a sensor designed to measure very low power and energy light sources and divergent beams. The device is intended for use with LEDs and diode lasers, as well as with pulsed or CW lasers in the 0.19- to 20-μm range. It features a 12-mm numerical aperture and a fused silica window to prevent air currents and long-wavelength background heat from distorting the measurements. Optical power can be measured from 60 μW to 3 W, and energy from 20 μJ to 2 J.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra April 2024 IssueAlexandrite LasersUnilase’s pulsed diode-pumped and compact CW alexandrite lasers operate at 760 nm and offer a variety of output power. 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