Fiber optics technology promises to have a substantial impact on Navy communications of the future, eventually superceding electrical cables in many systems. Advantages of fiber optics in military communications include immunity from electromagnetic interference, crosstalk, and signal leakage; large bandwidth for size and weight; ground isolation of terminals; and survivability at high temperatures. Improvements during the past decade in optical transmission lines, transmitters, and receivers have made it possible to consider fiber optics for use in aircraft, ships, land lines, undersea cables, missiles, and satellites. Fiber optics are expected to be utilized in both point-to-point links and multiterminal busses on aircraft, ships, and submarines. The relatively short distances on aircraft make it possible to use high-loss (500-1000 dB/km) fiber bundles for point-to-point links; somewhat lower losses will be needed for data busses. Length and cost considerations indicate the use of low-loss (20-100 dB/km) fibers, with each fiber representing a single communications channel, for most shipboard applications. Some undersea cables, with lengths well in excess of one kilometer, will require very low-loss (<10 dB/km) fibers. Several systems which have been developed or are under development by NELC for use in each of these environments will be described. In each case, the advantages of using fiber optics in comparison with conventional technology will be discussed.
Navy Applications Of Fiber Optics Communications
Guided Optical Communications ; 1975 ; San Diego,United States
Proc. SPIE ; 0063
1975-11-06
Conference paper
Electronic Resource
English
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