Fiber Optic vs Copper 234
pcnetworx1 writes "Recently companies, such as Verizon with their FIOS service, have begun to migrate from legacy copper to fiber optics. Corning (admittedly one of the largest fiber optic cable makers) is running an article which explains why it is actually cheaper to go for the fiber optics."
tell me something i didn't know.... (Score:2, Interesting)
Re:network security - not really (Score:5, Interesting)
Re:Benefits of Fibre: Electrical Isolation (Score:3, Interesting)
Re:Benefits of Fibre: Electrical Isolation (Score:3, Interesting)
Re:Why not short-haul fiber? (Score:3, Interesting)
Fibre cables can't have sharp bends in them because the photons would literally not make it around the bend if it is too tight.
Because of this the cable has to be carefully laid. You can't just string it anywhere.
Comment removed (Score:3, Interesting)
A new way to go online!? (Score:3, Interesting)
Fiber lines are harder to illegal tap. There is a device that can connect to a standard copper pbone cable without piercing the outer insulation. By turning a set of dials you can listen in on all of the phone conversations going on through that cable. Such a device wouldn't work on a fiber line because it exploits certain laws governing electromagentism and how electricity travels through wires. In order to illegally tap a fiber line you'd have to cut it, that would disrupt service for a while, and its would instantly be noticable.
Fiber to the home (Score:4, Interesting)
We support 802.11 wireless (it sucks, The technology isn't reliable and most people don't understand how to use it!), Cable modems, Dialup, fixed point wireless (this sucks worse, slow and almost unusable), and now "Fiber to the home" of all of them the fiber seems to be the best. We are even considering replacing some cable lines with fiber in existing builds where we have had problems with the cable or we have higher bandwidth demands.
I know the cost is more but maintenance is much lower and that is what kills you in the long run, going out and splicing a rodent chew. Fiber just doesn't have the same problems.
Just my opinion, but I use it now, in the real world and it isn't speculation at this point.
Re:why it is cheaper. (Score:3, Interesting)
I do not really buy the 10x more expensive argument... glass (even flawless) is cheaper pr. kg than copper... and btw. you can multiplex a signal on a copper wire too...
Where I live the most expensive part of laying anything in the ground is the digging.
There is one factor that in fact makes fiber cheaper than copper: glass is corrosion-free and will last forever.
Do the math (Score:3, Interesting)
But if you installed Cat3, then you yanked it and went to TSB Cat 5. Now they're goading us into Cat 6, and extended variants.
It's true that 20 years ago, one used bizarre jigs to terminate fiber, but those days are long gone. Optical TDR test equipment had dropped like a rock, and you can get unbelievably cool handheld and laptop-based diagnostic equipment these days for fiber.
And the cost to do fiber has dropped amazingly, too.
Fiber has always had a cutting edge-like price tag because the equipment was usually the fastest, like the first gigabit Ethernet, fiber channel SANs, and so on. But there's practical reason: you simply can jam far more data into a fiber pipe than a copper one, and this'll always be the case. The real limits of fiber simply have not been found yet, what with DWDM, multiple lambdas, and so on.
And no, I don't work for Corning. I'm an engineer that's designed a lot of MANs and WANs.
Re:take the words right out of my mouth... (Score:3, Interesting)
The US is a few years behind, I'd say about 5 right now, in fibre uptake. This mainly was due to the phone companies not wanting to install fibre networks and then be told they would have to lease them out at cost to competitors. This would severly reduce the return on investment they could then make. With a few recent rulings from the FCC, the phone companies have been ramping up fibre installation. My local phone company, Verizon, is installing fibre in the area right now. We don't have access to it yet, but it is coming. The cable company raised speeds when DSL became available in the area. Current cost for fibre in areas that can get it are 15/2Mbps for $50. Give it a few years, and it will be faster and cheaper.
Re:network security - not really (Score:1, Interesting)
We do it with a bare fiber, but the orange or yellow jacket you typically see on fiber is not especially opaque. Get your receiver sensitive enough and you don't even need to strip the jacket off.
Re:why it is cheaper. (Score:2, Interesting)
I've seen that there has been some recent work done to implement room-sized pico-cells using a ~65GHz carrier. At that band, there should (if the FCC allows) be plenty of room for everybody within the cell to have a fat channel. That is, instead of sharing 54Mbps, you could be sharing 1 or 2Gbps, again depending on what the FCC has allocated (which I don't have handy).