19 Jul
2016
19 Jul
'16
3:04 p.m.
On Tue, 19 Jul 2016, Mark Green wrote:
In my day job I work on computational holography and
other forms of
esoteric 3D displays, so I can give you some insight in how these things
work.
Holography is amazing. Do you know much about so-called "free space
optical" data transmission? I worked with some gear a few years ago that
could transmit & receive using multiple lasers at 1Gbit. I was fascinated
with that stuff, but the vendor had their folks do all the alignment and
installation. So, I didn't get to work with it much.
I wonder if you've seen faster speeds than that. I also wonder what the
power levels look like for those lasers and what distances the really
serious ones can reach. Can they still work in bad weather? It seemed like
the ones that I mentioned, still worked in the rain.
-Swift
PS: It was the May 1984 National Geographic cover that blew me away and
made me forever respect holography. :-)