Ohh there’s physical electronic repeaters. Okay. I thought this was some sort of... | Hacker News

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		Waterluvian on May 26, 2024 \| parent \| context \| favorite \| on: What the damaged Svalbard cable looked like Ohh there’s physical electronic repeaters. Okay. I thought this was some sort of electromagnetism witchcraft.

cyberax on May 26, 2024 | [–]

They actually are witchcraft. They amplify the signal directly, without transforming it into electrical signal.

bee_rider on May 26, 2024 | | [–]

It’s all witchcraft anyway. I’m not sure what they use exactly, but even photodiodes are pure witchcraft.

nbernard on May 26, 2024 | [–]

There is still some witchcraft. Look up "optical pumping amplifier" for instance.

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