The 86120B is a Michelson interferometer-based multi-wavelength meter built to do one job exceptionally well: characterize laser lines in dense WDM systems with absolute confidence. It covers 700 nm to 1650 nm (182 to 428 THz) and simultaneously measures up to 100 laser lines, making it a practical tool for DWDM signal validation and Fabry-Perot laser characterization





