All Questions
Tagged with laser communication
8
questions
5
votes
1
answer
445
views
How many (presumably friendly) lasers are being shot at us from space? (pew! pew!)
Example: at first they could not decide which of the green laser-shooting satellites was responsible! Too many to choose from?
See Science Alert's February 9, 2023, Ominous Green Lasers Shot Over ...
- 149k
14
votes
5
answers
4k
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Could we use a narrow paradigm, say laser, to get info faster from New Horizons? (With a moon base.)
There was just a question (actually, on Astronomy) about why the data rate from New Horizons is low.
Of course, even with the most directional radio antennas, the spread is enormous.
I guess ...
- 1,611
7
votes
1
answer
259
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Laser communication for interplanetary probes - aiming is impossible without beacon?
Laser communications are considered very promising for interplanetary probes because of potentially much higher data rates.
I found that laser communication at large distances (over 3 a.u. ~ 450 ...
- 9,061
5
votes
1
answer
474
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Attitude requirements for inter-satellite laser communication
Previous questions have address the beam divergence angles and the expected signal attenuation for laser communication between spacecraft.
However, I was wondering what is a typical receiver aperture ...
- 6,250
3
votes
2
answers
753
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Characteristics of the inter-satellite optical link
I'm currently diving into this topic and as I understand from the brief search there are two main types of inter-satellite link: radio and optical. As I can see, one of the main distinction of optical ...
- 153
3
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3
answers
795
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Does any satellite communicate only through laser?
I have read (here) and heard (on astronomy podcast) that radio waves decay or are indistinguishable the more distance they travel.
Do any of man made satellites communicate with Earth solely by ...
- 133
9
votes
1
answer
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What's the current timeline for NASA's Mars orbiter laser communications?
Dr. Jim Green, Director, NASA Planetary Science Division, mentioned during his "The Martian": Science Fiction & Science Fact talk for the 18th Annual International Mars Society Convention (you can ...
- 76.2k
7
votes
1
answer
543
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How much power loss does the LLCD suffer in transit?
Space.com writes to say (freeform improved quote):
The LLCD (Lunar Laser Communication Demonstration) space terminal is designed to beam data from the moon at a rate six times faster than the best ...
- 13.6k