The Ando AQ6317 is an advanced optical spectrum analyzer for a wide range of applications, including light source evaluation, measurement of loss wavelength characteristics in optical devices, and waveform analysis of WDM (Wavelength Division Multiplexing) systems. Especially at 1550 nm band, the unit achieves high wavelength accuracy and wavelength linearity, and can evaluate optical devices for WDM. Analysis functions make operation and expandability simple. The AQ6317 contains the latest of Ando technology for optical spectrum analyzers. A reference equipment for the next generation.