Scientists hit wireless speeds of 2.56Tbps using light vortex beams

Rick

TS Evangelist
Researchers at USC, JPL and Tel Aviv University have managed to transfer 2.56 terabits of information by multiplexing together 8 x 300Mbps "twisted" streams of visible light. The feat exploits a phenomenon which, up until recently, scientists thought may have…

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MilwaukeeMike

TS Evangelist
"Additionally, because the beams are made entirely of visible light, such light vortices require clear line-of-sight between the sender and recipient. This means you most likely won't be replacing your Wi-Fi network with a wireless phase-modulating vortex beam station anytime soon."
That's a bummer... I was looking forward to coming home with one and saying 'Honey! I bought a wireless phase-modulating vortex beam station!'
 
G

Guest

hmmm very interesting...this will prove VERY useful for the satellite companies...imagine a clear line of sight if you live in the country. No cable, barely any cell phone reception...this would do wonders for everyone. This is really big, I can't wait to see what they do with it.
 
G

Guest

So would that take a bit of a toll on my smartphone battery? Because we need to move on from LTE. It's getting pretty long in the tooth... :p
 

tonylukac

TS Evangelist
I don't see how light would go thru cloud cover from a satellite. My brothers radio satellite dish fails when it merely rains.
 
G

Guest

"The real excitement seems to be transmitting data wirelessly, an area where our future endeavors may be limited by the finite amount of usable radio spectrum available."

Visible light is part of the electromagnetic spectrum and is limited as well. Right now our phones are using code division multiple access (CDMA) which allows multiple users to occupy the same exact frequency. That was our fix to the problem of finite radio spectrum.

The reason they're able to increase the speed is because the wavelengths of visible light are shorter. Long story short the amount of spectrum available is irrelevant.
 

DanUK

TS Booster
Oh man, the physics going into this is incredible/fascinating. The amount of technology like this we're seeing emerge these days... I can't wait to see what sort of devices we'll have 5/10 years down the line.
 

DanUK

TS Booster
I don't see how light would go thru cloud cover from a satellite. My brothers radio satellite dish fails when it merely rains.
Yeah I think they were talking about between satellites in space for example. Space = almost zero interference.
 

LinkedKube

TechSpot Project Baby
You can move to places like Arizona or Utah U.S just to name a few, or the middle of Austrailia to avoid a lot of cloud cover.