Over the last several years, it has become widely recognized that electromagnetic interlerence
(EMI), electromagnetic pulse (EMP), high intensity radio frequency (HIRF), and new threats,
such as directed-energy weapons, can jeopardize the flight safety of vehicles with Fly-By-Wire
(FBW) systems, unless adequate shielding precautions are taken.
"Fiber optic technologies for aircraft applications", Proc. SPIE 1582, Integrated Optoelectronics for Communication and Processing, (1 December 1992); doi: 10.1117/12.2321803; https://doi.org/10.1117/12.2321803