[Laser] Paper about "Free-space optical links for space communication networks"

[Gary Sutton]

Paolo, thank you for the link to the interesting paper.
It does make one want to get out and experiment with FSO again.
We may not have satellites at our disposal, but there is much that can be
done terrestrially.

73,
Gary, WB5PJB




On Thu, Dec 31, 2020 at 8:28 AM Paolo Cravero <paolo.cravero at gmail.com>
wrote:

> Gentlefolks,
> the list has been silent for a while, so it is time to check if it is still
> working.
>
> Recently I spotted this 66 pages long document about "Free-space optical
> links for space communication networks" (PDF at
> https://arxiv.org/abs/2012.13166). It talks about past, present and future
> of optical communication links. A bit of theory, a bit of math and easy
> graphs, some pictures of real-world applications. I think the booklet is
> also good for the technically inclined newcomers to FSO experiments.
>
> The website linked above ( https://arxiv.org/ )  has a good collection of
> fresh technical papers on many subjects, probably too specific for most
> hobbyists, but that's a good diversion from browsing e-commerce portals :)
>
> Have a nice read,
> Paolo - Italy
>
> PS. The abstract for your convenience:
> "Future spacecraft will require a paradigm shift in the way the information
> is transmitted due to the continuous increase in the amount of data
> requiring space links. Current radiofrequency-based communication systems
> impose a bottleneck in the volume of data that can be transmitted back to
> Earth due to technological as well as regulatory reasons. Free-space
> optical communication has finallyemerged as a key technology for solving
> the increasing bandwidth limitations for space communication while reducing
> the size, weight and power of satellite communication systems, and taking
> advantage of a license-free spectrum. In the last few years, many missions
> have demonstrated in orbit the fundamental principles of this technology
> proving to be ready for operational deployment, and we are now witnessing
> the emergence of an increasing number of projects oriented to exploit space
> lasercommunication (lasercom) in scientific and commercial applications.
> This chapter describes the basic principles and current trends of this new
> technology."
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