Absorptive clad fiber optic faceplate tube

摘要

A limiter device is used as a fiber optic faceplate (FOFP) night vision goggle for limiting light or laser induced damage on a vacuum side of the FOFP. The limiter device includes a plurality of longitudinally extending optical fibers, each bundled to each other to form a light input surface on an external side of the FOFP and a light output surface on the vacuum side of the FOFP. The optical fibers include fiber optic cores and a glass cladding surrounding each of the cores. A portion of the glass cladding is replaced by an optical absorber material extending longitudinally away from the light input surface. The optical absorber material may extend longitudinally about 1 - 20 microns away from the light input surface.