Laying Fiber Optic Under Sea Cable

[kingcrimson234]

the technology we have is ridiculous, and it's only getting mower advanced. very, very fast.

here in the middle of the US, i can send data to a computer in the UK in well under 150 milliseconds. not only that, but i can transfer several megabytes per second to it without giving it a second thought.

we've gone from the 8088 CPU in 1979, to being able to buy close to 4 GHz six-core CPUs. so, what about in another 30 years? :o

[Xoujiro]

do they put it under the deep seabed or just at the beachside?

[Ocker3]

@Xoujiro that's just a beach-side demo to show you what it does underwater

[kerrermanis]

Nowadays they have converters that just use light to amplify the signal again, which is harder to intrude by hackers etc.

[LURTSCH]

I wonder how many strands are in that cable. Is there even an indicator in the video that shows whether it's MM or SM?

[kevintwilson]

@LURTSCH MM, are you serious? Submarine cables are by nature layed for LONG distance while MM fiber is for VERY VERY SHORT distances.

[Nuanceqwest]

How far man has come.

[Evi1M4chine]

Uuum, how will they carry more, when they still need many boosters, working ELECTRICALLY! So they still go though coaxial parts every 4-5 km!

[nexxcat]

Someone needs to learn about wire impedance and capacitance, and their effects on high frequency switching.

[detibry]

its because dispersive effects are only evident in coper conductors that are significantly large in length.

[Xarieus]

I just got fibre optics installed into my house yesterday!! Ill be getting the service for it in 2010 march and it will be awesome!! 1 GBs!!

[Keepskatin]

i don't believe consumer will have 1gb internet download nor upload that's insane speed,but i wish we could have it

[Xarieus]

Me neither. The cable can support 1 GB/s but the provider never gives that much. But even 100 MBPS will make me super super happy!

[samjtm]

It can reach 1gbps. otherwise it would be a complete waste, why would they bother using fibre if it doesnt reach insane speeds? they might as well use cable.

[everuss]

The video is rather old. Modern cable systems use optical amplifiers, there are no optical - electrial - optical conversion. Repeater type systems are no longer in service. Modern sytsems typically use 4 or 8 fibre pairs, each fiber pair supports multiple wavelengths of light (DWDM) - for instance a 4 FP could support 96 x 10Gb wavelengths x 4 FP's giving a total of 3.84TB. Also more recently manufactures are introducing 40Gbp wavelengths and in the near future 100gb wavelengths will be appear.

[TravvyG]

I think this was on the Catayst show on ABC HD but Australian Scienctist have developed a light switch thingy that processes light that can replace the electric ones that go In Repeaters and all that switching stuff

[powerlifted]

you all sound way to stupid to even worry about this anyways!

[Lekter]

shut up Barry Bonds

[goatshredder]

Thanks for posting this. It's mega.

[tj4rvo]

Is it true its $15,000,000 [fifteen million dollars] a meter? = or is my IT lecturer talking shit?

[itsdonny]

Not possible.

[CamiloSanchez1979]

he is bullshitting ya..

[shawnlhood]

That would be $15B/km -- putting the costs of transcontinental projects in the (tens/hundreds of) trillions. The US GDP is somewhere in the $13-14 trillion range. Having said that, some simple math would have you arrive at the conclusion "The aggregate of transcontinental fiber projects cost more than than hundreds of years of output value of the US." The simpler answer: Re-educate the fellow. :D

[dnave21]

What would power the repeaters? are thay battery powered?

[nommyz]

most probably battery power - however I believe if the repeater is close to land or some type of power source this takes priority

[powerlifted]

its magnification of light is all it makes it more powerful again, come on just think about it.

[shawnlhood]

While there is optical-optical repeater technology, the great majority of it is optical-electrical-optical (OEO), which means that it would need a power source.

[shawnlhood]

Most repeaters are powered by power-feed equipment (PFE) located near the fiber landing, which generates DC current. The power is generally low-current/high-voltage. PFE is generally setup in active-active configuration, so that redundant PFEs supply the power. In the event of a PFE equipment failure, the redundant unit(s) will assume the full load.

[strongmeasures]

Do you know what the light range of a fiber optic cable is without experience any major loss and without a repeater? I ask because I am interested in the feasibility of transmitting sunlight with optic cables from a sunlit part of the country to a dark part as a way of providing solar lighting 24/7.

[Keepskatin]

that is not possible,that is a crazy idea,very expensive and the cable would have to be super wide,and would...do you see how much light is produced from a hosehold fiber cable,not much at all.Your idea is crazy and impossible,but i like crazy ideas.

[LZ2RBB]

exelent !!

[almawang]

WOW, how you make the video, it is great.

[Kokken87]

it is expencive, it is allso awsome and cheaper the copper.

[AdamBoy64]

Sounds expensive.

[sunnetmedia]

wow..

[biroldursun]

inanılmaz bişey

[GamlGandalf]

US-Army. You did a dirty job these days for your dictator. I am really surprised. I thought you would have the guts to say "NO, Sir! This is unamerican, Sir!". Well, too bad.