On 10/26/2018 12:29 PM, Knurpht-openSUSE wrote:
Op vrijdag 26 oktober 2018 16:17:56 CEST schreef David C. Rankin:
Or more formally OAM:
https://www.theregister.co.uk/2018/10/25/twisted_light_networking_speeds/
apparently has the potential to increase fiber-throughput 100 fold.
Now I like to think I'm roundly educated, and my undergrad did dig heavily into the wave-particle duality of photons and light, but this is the first time I've heard about OAM or its use to encode information. Future may not be all that boring after all. An old UNIX tutor: "And even if we could get data transported through whatever medium at the speed of light, dealing with these data would require computing at light speed". This was at a conference where we just heard that 1Mbit/sec accross copper telephony cables was not technically impossible ( where the market said it was ). Like James, my tutor hit the nail: all data transfer speeds depend on getting the data on and off the transport medium.
Yes, That was the fascinating part. The: twirl-encode->transmit->decode So you have your fiber and you introduce up to 100 or so beams of light simultaneously with a slight twist to it wavefront. All of the distinct wavefronts propagate through the fiber and the limited interference between any of the "channels" is negligible enough it allows encoding and transmission of data on each channel. Providing not only transmission, but a complete asynchronous send-receive over each channel and the only thing they are scrambling to scale down is the technology to allow fetching the information from each channel while also handling the massive amounts of data? The proverbial traffic-cop at the end of the fiber directing beams of light based on the amount of twist. So the traffic-cop is directing the light at an intersection with 100 roads leading away, and each road leading away must be the same "super-highway" that is currently required to handle a single car (beam). And it all has to be small enough to segregate the channels from an end the size of a single fiber optic strand -- and the fiber optic cables are hundreds of strands bundled together. That's just cool. Cool enough to bump Schrödinger's cat to the back burner... -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org