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[NASA]Laser Communications Relay Demonstration (LCRD)

post #1 of 5
Thread Starter 
Quote:
Radio-based space communications have been the convention since the days of NASA's Mercury and Gemini programs, but even with dramatic improvements to the technology in the last half-century, radio communications are challenged by modern mission needs, which call for significantly higher data rates, or current levels of performance requiring a lot less mass and power -- critical resources on any spacecraft.

Source

Well that is only 77MBps, certainly not yet anywhere near gigabit speeds, lots of room for improvement, would just take the new fancy laser optics modified from fiber and directed into a focused beam.
post #2 of 5
I love seeing sci-fi come true...I don't think I've ever read a sci-fi book that involved space ships that didn't have comm lasers.


Though I've wonder why they haven't done this already. I think the tech to do laser communication has existed for quite some time. At least satellite to satellite in orbit. I don't think it will ever work from orbit to ground.
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post #3 of 5
Quote:
Originally Posted by Vagrant Storm View Post

I love seeing sci-fi come true...I don't think I've ever read a sci-fi book that involved space ships that didn't have comm lasers.


Though I've wonder why they haven't done this already. I think the tech to do laser communication has existed for quite some time. At least satellite to satellite in orbit. I don't think it will ever work from orbit to ground.

Probably not, the atmosphere plays hell on any laser that isn't stupidly powerful... and stupidly powerful and space based doesn't seem to make sense.
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post #4 of 5
Quote:
Originally Posted by Avonosac View Post

Probably not, the atmosphere plays hell on any laser that isn't stupidly powerful... and stupidly powerful and space based doesn't seem to make sense.

It doesn't make sense until you play KSP.

At which point it becomes "Lets do it. Just to test it."
post #5 of 5
Thread Starter 
Well technically I would bet this would be for space based communications, then who cares if it takes time to down the data from a satelite, as long as they can transfer the data quickly to and from missions. Just use radio when going through the atmosphere.
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