Turning optical fiber cable into microphone

Jason McVetta jason.mcvetta at gmail.com
Thu Jun 16 18:16:11 PDT 2016


On Thu, Jun 16, 2016 at 10:56 AM, This 1s <this1s at mailbox.org> wrote:

> Is internet cable in house a hot mic?
>

I doubt it.  Sounds like this needs some pretty special equipment at the
end of the fiber.   Also not clear that it can be used concurrently with
data transmission over the fiber.

Could be that the company is lighting up unused fiber?  Cheap way to get
audio surveillance along a vast stretch of pipeline that happens to have
some dark fiber sitting beside it.
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