New developments in field splicing of avionics fiber optic cable

The challenge of repairing of fiber optic cables on aircraft has been recognized for some time, but until recently very few solutions have been pursued or accepted. Since 2004, however, several companies and agencies, particularly the Naval Air Warfare Center (NAVAIR), have directed attention to this problem. Basically four generic approaches are agreed-upon - remove and replace an entire damaged cable, reterminate connector termini on site, mechanically splice a damaged cable, or fusion splice it - each with advantages and disadvantages depending on the application. In this paper we discuss some recent advances in mechanical and fusion splicing, with particular attention to cable strength restoration and safety in hazardous atmospheres (fueled aircraft).