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RONJA[0] with lasers? >smile< Free space optics always seemed like a neat idea. For space-based communication, particularly if your "mission" involves as litt
by EvanAnderson 2y ago
RONJA[0] with lasers? >smile<
Free space optics always seemed like a neat idea. For space-based communication, particularly if your "mission" involves as little stray emission as possible, I would think free space optics would be a win.
I would assume there's more error correction, but otherwise I wonder how dramatically this differs from modulating light on a fiber. It seems like a similar problem.
[0] https://en.wikipedia.org/wiki/RONJA https://en.wikipedia.org/wiki/RONJA
- proxysna 2y agoExactly my first thought. Had this link in my bookmarks for an eternity. http://images.twibright.com/tns/1208.html http://images.twibright.com/tns/1208.html
- looofooo0 2y agoThere have been some recent advances which greatly improved the optical bandwidth and make such projects much more feasible cost wise: https://www.nature.com/articles/s41377-023-01201-7 https://www.nature.com/articles/s41377-023-01201-7 Single digit amount of photons is needed per bit.
- FuriouslyAdrift 2y agoIntersting... my physics class in high school (late 80s) made an RF modulated laser transmission system for sending analog video between two buildings a few miles apart. It worked great. I didn't think it was that big of a deal at the time since we had already done microwave and other frequencies.