Fiber optic cables are being proposed for use by the military. These applications include long length communications systems, computer interconnects, data links for remote operations, and local distribution systems. Many of these applications will require the cables to function properly in nuclear radiation environments in which high levels of thermal radiation can be encountered. A considerable body of literature exists showing the deleterious effects of ionizing radiation on optical waveguides. However, little attention has been given to protecting the optical waveguides from the effects of thermal radiation pulses which accompany the ionizing radiation.
It is therefore an object of this invention to provide means to mitigate damage to optical fiber cables which occurs upon exposure of the cables to thermal radiation.
It is an object of this invention to provide such protective means for the cables which is relatively thin and lightweight, and which adds little to the cost of the cables.