Originally Posted by EniGma1987
Because instead of a straight shot with the laser it is instead traveling around in a spiral making it need to traverse more distance for the same length of wire.
Not necessarily. I'd have to check the mode math on it to see if there's a difference in phase or group velocity, but keep in mind you're comparing it to traditional fiber optics, not freespace transmission.
Originally Posted by LancerVI
First, let me admit that I'm WAY out of my depth here and you clearly seem to know what you're talking about.
Is this method discussed in the article not "good?" Or is it not feasible? I'm just trying to clearly understand what you mean. I find this topic fascinating. However, fascinated, like me watching brain surgery!! lol It's cool, but I just don't get it.
Light is pretty damn complicated. The normal treatment most people get in science classes is that it's an electromagnetic wave, and that electric field oscillates up and down as the light travels. Up and down defines polarization, and left and right is the other polarization state.
What's more complicated is that light also has momentum, and in particular angular momentum. The fiber they made allows you to adjust the angular momentum and use that to perform signal multiplexing, so that a signal at one angular momentum is distinguishable from a signal at a different angular momentum. Some fancy math later, and now you've doubled the amount of light you can put on the fiber (within some limits).
I haven't actually read up on this so I'm not sure how far it can go, but all of the telecom industry is trying to figure out how to get more signals on the same link. Laying cables is expensive, and if you have to run another one then that's a big deal.
But, you also have to have the full back-end equipment capable of splitting the light back out again, so the practical effects of this development mean that implementation may take a long time, or it may never be commercially viable.