Author: keawjinda
Date: Jun 15, 12 at 4:14pm (PST)
Subject: Fiber Optics
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I hear that fiber optics provide the fastest internet connections out there. Can anyone tell me how does an internet connection work under fiber optic cables. Do these cables need to be connected to a telephone company somehow? I am wondering whether it is possible to set up our own fiber optics network within a small community for super fast internet.
Author: Craigy Boy
Date: Jun 16, 12 at 4:42am (PST)
Subject: re: Fiber Optics
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Buy some regular cables from your nearest shop that sells them, cut them down to fiber size, connect them to your router and everyone elses router (underground) and there you go. Fiber Optic cable speed.
Author: hiigaran
Date: Jun 16, 12 at 9:07am (PST)
Subject: re: Fiber Optics
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quoteI hear that fiber optics provide the fastest internet connections out there
you heard right.
quoteCan anyone tell me how does an internet connection work under fiber optic cables
over long range, like that between you and the ISP, or between countries, bundles of optical fiber cables transmit signals in the form of light, rather than electricity. this is because while light travels at the speed of..well...light, its biggest advantage is that while traveling through these fibers, there is very little signal loss, compared to normal electrical cables, because there is less noise interference (the magnetic field of earth for example will introduce fluctuations in to the electrons in the electric cables, causing the signal within to be altered). there is also less attentuation, which is the loss of intensity in the signal. after a certain distance, there has to be something to boost, or amplify the signal again. this amplification not only amplifies the signal, but also the noise that it picked up along the way. because there is almost no noise picked up by light signals, the signal itself can be amplified without any real noise issues, and because light can travel a much longer distance before attenuation becomes a problem, there are fewer amplification stations that the signal has to go through. and finally, the fewer times light has to be amplified, the fewer delays there are, meaning the signal reaches its final destination quicker.
oh, and then there is the fact that fiber optics can carry a massive amount of information, compared to electricity.
quoteDo these cables need to be connected to a telephone company somehow? I am wondering whether it is possible to set up our own fiber optics network within a small community for super fast internet.
define a small community. if you want to wire up an entire building, or block, its a waste of money. the cabling is expensive, and all the advantages of fiber optics are going to be on too small a scale to have any benefits. you would be better off wiring up with normal network cables. CAT5 (the standard network or ethernet cable) can carry a signal up to 100 meters. if whatever place you want to network is larger than the cables can reach, you can use a signal boosted wifi network, either on everything to be networked, or just on those devices that are too far away.
Author: Fury
Date: Jun 16, 12 at 3:48pm (PST)
Subject: re: Fiber Optics
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In the states, Verizon is the only ISP I know of that has a legitimate fiber-to-home network. Google is supposedly getting into it as well.
If you just want to have your own personal network, then fiber is a waste. CAT6 gets around 120 MB/s I think? Should be plenty for whatever you're doing on a LAN.
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