Temporal Cloaking of Telecommunication Data

Factual Questions
1

Here is a link to the abstract of what seems like a very interesting article in this week’s NATURE. The gist of it (to me, recognizing my lack of understanding, please) is that it is possible to “cloak” optical telecommunications in a way that renders them, if not invisible, then impenetrable; impenetrable to observers, ‘decrypters’, and, I assume, all forms of observation. Two questions, please.

  1. Have I got it right - do such “cloaked” optical telecommunications resist ALL attempts at being observed except along and at the ends of their dedicated optical path?

  2. How is this effect achieved? Does the signal (somehow) generate its own ‘inverse’ or ‘negation’ at every point in space except along its dedicated optical path. (Please don’t laugh - although I am asking because I don’t know, it’s not gonna stop me from guessing!)

2

Just to clarify, with respect to the above, I am referring to the 47 percent of the transmission that was successfully cloaked.

3

Sure looks like that’s what it does.
I think the magic part might be the “single-mode fibre” mentioned in slide two.

4

I’m not sure this is the same thing (seems to be a different group), but this article might be more accessible.

5

Thank you! That is about the same research. I’ll give it a shot.