NIR fiber optic spectrograph AvaSpec-NIR256-2.5 Sukurta: 30 November 2018 Unit: Faculty of Physics Keywords: Spectrograph, InGaAs detector, Avantes, AvaSpec-NIR256-2.5 Responsible person: Dr. Rytis Butkus, tel. 8 5 2366046, InGaAs detector, spectral range: 1000-2500 nm. Application. Spectral measurement in 1000-2500 nm range.