The FOLS-204 handheld optical light source delivers stable multi-wavelength laser output for testing both single mode and multimode fibers. This compact and portable unit operates in either continuous wave (CW) or modulated mode, offering excellent stability for data center, FTTx and general fiber network testing. Featuring dual output ports with a SHIFT button for instant mode switching, it provides versatile field operation. When used with a compatible optical power meter, its dedicated TWIN button enables one-touch auto wavelength identification, providing a quick and accurate testing solution for single mode and multimode fibers.
