can laser beams transmit the same amount of data as fiber optic cables?
2007-05-14 04:00:30 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
I agree with the first answer. I just add tha the laser beam transmission may be stopped by the fog contrary to the fiber optic cables :)
2007-05-14 16:18:51 · answer #1 · answered by Edwige 4 · 0⤊ 0⤋
Actually, it *is* LASER beams that are used inside all fiber optic cables to carry the data.
Theoretically LASERS in free-space can carry just as much data as fiber-optic cables, but the technology isn't quite 'there' yet for alot of open free-space communications. There have been some sucessful experiments using free-space LASERS to communicate on the ground over distances of several miles (I was partially involved in one of these a couple of years ago). There have also been some experiments carried out in outer-space using LASERs to communticate between satellites, but these are still in their infant stage of experimentation.
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2007-05-14 11:04:27 · answer #2 · answered by tlbs101 7 · 1⤊ 0⤋
Yes. But, in reference to fiber optics, ordinary leds are also used for low bandwidth systems, typically operating multi-mode in the 829-920 nm region. By low bandwidth, I an referring to 5 MBS more or less.
2007-05-21 04:15:44 · answer #3 · answered by ZORCH 6 · 0⤊ 0⤋
yes, fiber optic cables use low power lasers. Its truly amazing.
2007-05-14 11:16:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋