Transmitting signal from satellite by 2 W laser

[polgyver]

I am not sure if this info can influence our FTA hobby. I could not get a link, but took 2 photos about this news.
Cheers, polgyver

 

[cyberham]

Interesting! I'm looking for the "April Fools" tag. Let's hear more about this.

 

[telstar_1]

Right, when does the Jewish collaboration connection come in?

What is "atmospheric turbulence"? I've never heard of "the atmosphere" affecting sat comms, other than rain and Ku. A t-storm won't affect laser?

 

[TNGuy84]

You'd have to do that in an area with no air traffic. Otherwise, an airplane flying by would cancel out the signal.

 

[navychop]

We did some green laser experiments in the Navy. Mixed results. Google, err, "bing" it for more info.

Note they said nothing about later signal duration.

Suffice it to say, I have this large salt block.

 

[N5XZS]

Laser wavelength will not get through clouds, fog, rain and snow.

I am pretty much sceptical of Chinese state owned press media for misinformation on science breakthrough on satellite Laser beam punching through Earth's atmosphere with clouds and other things except clear sky over long path.

So it's pretty much moot as this time.

 

[navychop]

Latency.

 

[N5XZS]

Yes of course that too for light speed delay at warp 1.0 or 186,000 Mile Per Second...

 

[navychop]

Sigh. Ever make a phone call, as we did many years ago, via satellite? Plenty delays.

Geo fine for TV, data transfers and many other things. Barely manageable for voice. Certainly not so good for gaming, or even time crucial stock trades.

Two way communications are possible but nobody's number one choice.

 

[texanboy]

What is "atmospheric turbulence"? I've never heard of "the atmosphere" affecting sat comms, other than rain and Ku. A t-storm won't affect laser?

Starlink satellites already use inter-satellite laser communication to create a mesh network in space, enabling data to be passed between satellites at the speed of light in a vacuum.

it is surprising to hear that it is possibly used to even achieve Gbps speeds from other satellite internet providers