On 26/10/2018 19.29, 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.
Maybe, maybe not. The data can be extracted without computers, using plain old "digital electronics" and converted into several independent and slower flows (think time multiplexing) which would be handled by separate computers. Similarly as the differentiation on the telephone industry of old between "transmission" and "switching". Transmission could handle faster speeds that what switching could handle. A single long distance fibre could transmit data at high speed that on arrival would get separated into several slower fibres, for instance. What would not be that easy, maybe not possible, would be dynamic switching (because it needs computing at that speed). The fibre would use fixed slots. -- Cheers / Saludos, Carlos E. R. (from 42.3 x86_64 "Malachite" (Minas Tirith))