Because light isn't an electric current, fiber is immune to electromagnetic interference (EMI) and radio frequency interference (RFI). You can run a fiber cable right next to a high-voltage power line, a microwave oven, or an MRI machine, and it won't pick up noise. While fiber optics are inherently resistant to most traditional forms of interference, they're not magic. Understanding what can and cannot disrupt them — and why — reveals both the brilliance of the technology and the hidden vulnerabilities in the systems around it. Unlike hardware failures, EMI is invisible but can cause significant damage. au/~akadi/ite/major_assignments/barber/advdisad. htm] My (admittedly naive) question is: How is light, being an electro-magnetic wave itself, immune to. upling is realized generally by means of optical fiber. Under influence of these fields the polarization plane of light.
