FO86902 optic light source is one of the latest self developed test instrument. The optic light source can provide 1 to 4 wavelength output according to the specific requirements including the 650nm red source, 1310/1550nm wavelength for the single mode fiber and 850/1300nm wavelength for the multimode fiber. Together with FO86503 optical power meter, the optic light source acts as a perfect solution for the fiber optic network work.