Being completely overhauled, Newport’s calibrated integrating sphere detectors consist of an integrating sphere, a photodiode detector and an SMA fiber output. The 2-, 3.3- or 5.3-in. high-power spheres are configured for either diverging or collimated light sources. A high-quality Si detector is used for the 400- to 1100-nm wavelength range, and an InGaAs detector for approximately 900 to 1650 nm. Up to several watts of optical power can be measured.