Article View: sci.electronics
Article #17205EMR from fiber-optic cables
From: steves
Date: Thu, 22 Jan 1987 21:03
Date: Thu, 22 Jan 1987 21:03
21 lines
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1495 bytes
A consortium of countries is laying a fiber optic cable under
the Atlantic from the US to France and England. Before beginning
this, they beta-tested a piece of the cable off the Canary Islands.
According to Time magazine, this test gave the following results:
[This is not an exact quote, but is what I remember]
"A certain kind of radiation, escaping from the cable, attracted
alligator sharks which chomped through the cable. The solution
was to use heavier armour."
My question: what kind of radiation escapes from a *fiber optic*
cable? After thinking about it for a while, I suppose that there
could be repeaters inside the cable that are powered by plain
old copper wires, and the current could generate an electro-magnetic
field. But wouldn't the armor act as a shield?
Anyone have any information? Just curious.
Steve Shellans
Tektronix, Beaverton OR
{decvax, wyvax, ihnp4, ucbvax} !tektronix!tektools!steves
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!rutgers!seismo!husc6!panda!genrad!decvax!tektronix!tekgen!tektools!steves From: steves@tektools.UUCP Newsgroups: sci.electronics Subject: EMR from fiber-optic cables Message-ID: <2127@tektools.TEK.COM> Date: Thu, 22-Jan-87 16:03:04 EST Article-I.D.: tektools.2127 Posted: Thu Jan 22 16:03:04 1987 Date-Received: Sun, 25-Jan-87 00:08:30 EST Organization: Tektronix Inc., Beaverton, Or. Lines: 21 Keywords: fiber optic EMR alligator shark