Got stuck looking at this… yes really you can send that much big amount of data in a sec but how ??? is the big question .but Hp (Hewlett-Packard ) unveiled the secret…Actual secret is ---transmission is done through light called photonics. ( Resonating Silicon light ) ---->
Till now we have employed optic cables in spanning world’s oceans and then in super-fast data networks on a national, local and – most recently – office-level scale. After all this now researchers at HP are helping put photonic connections inside computers themselves.
Moore's Law states that processors are supposed to keep expanding their data-crunching abilities exponentially into the future. Today's processors need communication bandwidth of 10 gigabytes per second, for example, but within a decade some computer applications are expected to need in the range of 10 terabytes per second – a factor of 1,000 more.
Existing electronic connections between processors can only scale linearly at best, and even photonic connections now on the drawing board are not expected to ever exceed a few hundred gigabits per second. Thus in ten years we'll need to connect hundreds of them to a 10 terabyte-per-second chip to be sure the connectors aren't acting as a data bottleneck.
how do you get a linearly expanding technology to catch up with one that's growing exponentially?
You can do a lot by massively reducing the size of individual optical light generators and the detectors needed to turn their light back into data. But that won't get you far enough.
What also needs to happen, “is we need to pack more data into the frequency spectrum of the light they use.”
Telecommunications companies already do this in a process known as Dense Wavelength Division Multiplexing (DWDM), where light of many wavelengths -- separated by about half of a billionth of a meter – is sent down a single optical fiber.
So what if you could do the same thing along an optical channel – called a waveguide – thousands of times thinner than a conventional optic fiber?
“If we sent, say, 64 different wavelengths down a nano-scale waveguide and if each is operating at 10 Gigabits per second, that's like 640 Gigabits per second of data all of a sudden going through a single 'wire'.”
But doing all these in practical is not a simple thing, for this HP's solution is to utilize a particular property of silicon -- its ability to function as a tunable resonator. In addition to this they've made high-quality rings with diameters as small as 3 micrometers, which is a world record.
And all working methods on this are here to dig more...
