scipaJapanese researchers bring 100 Tbps data rates over fiber-optic cables
November 19th 2007 18:22
Sure, that's might not mean much. 100 Tbps - how fast is that really?
Well, Australia is trying to bring fast broadband to the majority of the population; fast broadband here means 1 Mbps, average.
Sure, it's fast enough to check email, watch YouTube videos, download songs from iTunes.
100 Tbps is something else. It's 100 000 000 times faster than 1 Mbps, which means you could have speeds and access to a ridiculous amount of information. That's a pipeline of data that is 100 million times faster than the 'fast' internet we have now.
Japanese researchers have hit this limit by using optical QAM over fiber to hit these speeds. Unfortunately, the original article is locked under subscription, so we can't dive into the nitty-gritty.
QAM is a clever idea, though. Basically, instead of using a simple 'ON/OFF' code to indicate 1s and 0s, QAM uses angles to mean two bits at once... for example, a 45 degree angle might mean '00', whereas 135 degrees could mean '10'. It's a sneaky way of cramming more information into less time.
Well, Australia is trying to bring fast broadband to the majority of the population; fast broadband here means 1 Mbps, average.
Sure, it's fast enough to check email, watch YouTube videos, download songs from iTunes.
100 Tbps is something else. It's 100 000 000 times faster than 1 Mbps, which means you could have speeds and access to a ridiculous amount of information. That's a pipeline of data that is 100 million times faster than the 'fast' internet we have now.
Japanese researchers have hit this limit by using optical QAM over fiber to hit these speeds. Unfortunately, the original article is locked under subscription, so we can't dive into the nitty-gritty.
QAM is a clever idea, though. Basically, instead of using a simple 'ON/OFF' code to indicate 1s and 0s, QAM uses angles to mean two bits at once... for example, a 45 degree angle might mean '00', whereas 135 degrees could mean '10'. It's a sneaky way of cramming more information into less time.
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