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Polymer and metal-matrix composite-embedded optical fibers for avionics communication links

Significant weight and space savings have been realized in avionic equipment and structures by using composite materials. Optical fiber provides improved communication between equipment and components on board the aircraft. The marriage of these two technologies by embedding optical fiber in the composites achieves improved signal transmission and reduced weight. The goal of this work is to provide reliable, low-profile, optical interconnects with composite-embedded optical fiber for communication with opto-electronic circuit cards and modules. The design and results of a prototype embedded multimode optical beamsplitter utilizing in-fiber 45 degree(s) dielectric coatings are presented.