David G. Nagel wrote:
The fiber optic leads are used in the experiment mentioned in the story
linked by the URL that was recently mentioned in this thread. I think
the whole thing is hilarious and was especially struck by the use of
glass fiber to measure an electrical/magnet phenominum with no
indication how the measurement is made. Sort of in line with someone's
line of thinking in this thread.

There exist transducers that will convert RF to light on one end of
a fiber optics cable and back to RF at the other end. It's no big
deal and keeps the transfer of information from being affected by
EM fields.
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73, Cecil http://www.qsl.net/w5dxp