• cmnybo@discuss.tchncs.de
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    4 days ago

    The problem with laser communication is that it doesn’t take much rain, snow or fog to block the signal.

    • luciole (he/him)@beehaw.org
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      4 days ago

      Similar “free-space optics” systems have been tested since the late 1990s, but past attempts were limited by weather conditions and fragile alignment systems. Taara claims its devices overcome many of those limitations with improved beam tracking and more resilient design.

      They claim they’ve overcome that hurdle though, as per the article.

      • masterspace@lemmy.ca
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        4 days ago

        Yes, but the article is literally nothing without that information.

        The only interesting thing about a new approach to laser internet is if they’ve solved the critical issue holding it back.

      • hendrik@palaver.p3x.de
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        4 days ago

        I wonder what they did, though. Because the article is omitting most of the interesting details and frames it as if this as if optical communication in itself was something new or disruptive… I mean if I read the Wikipedia article on Long-range optical wireless communication, it seems a bunch of companies have already invested 3 digit million sums into solving this exact issue…

        • Cethin@lemmy.zip
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          4 days ago

          Well, most likely they’ll never say what they did to solve it, assuming it is solved. That’s how capitalism works. Everyone tries to keep innovation secret, so we have to invent the same thing dozens of times.

          • hendrik@palaver.p3x.de
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            3 days ago

            Nah, all it takes is one person buying it, disassemble it and look at the mechanics to see whether there are things like motors and mirrors inside the transmitter to do new things like align it dynamically. And I mean the other things, physics, the atmosphere, lenses and near infraread lasers along with signal processing are well-understood. I think it won’t be a big secret once it turns into a real thing… I mean as long as it’s hype only it might be.

            • Cethin@lemmy.zip
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              3 days ago

              Maybe, though processes and algorithms won’t be copied easily legally. If they did some special coating to lenses or something, or if they have a really smart algorithm to correct for different effects, those are protected by law. You can examine it and try to replicate it, but you can’t copy it.

              • hendrik@palaver.p3x.de
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                3 days ago

                Sure. I think we’re talking a bit about different things here. I didn’t want to copy it, just know how it’s done 😆 But yeah, you’re right. And what you said has another benefit. If they want to protect it by law, we have a process for that: Patents. And those require to publish how it’s done…

      • lnxtx (xe/xem/xyr)@feddit.nl
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        4 days ago

        Okay, photo taken (by Gabriele Barni) from 17.1177 km (claimed metric kilometers) straight distance to the buildings:
        .

        You can imagine how wobbly the image was.

        How to compensate it? Wide, powerful beam? Gonna be blinded by an invisible light?

        Quote from the video:

        This is as simple as a digital camera with a laser pointer.