What the damaged Svalbard cable looked like
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Re: What the damaged Svalbard cable looked like
#2TLDR; it probably wasn't the russians, most likely a trawler.
Re: What the damaged Svalbard cable looked like
#3TLDR; it probably wasn't the russians, most likely a trawler.
This was January 2022. Didn’t the alleged Russian interference happen later, during the invasion of Ukraine?
Re: What the damaged Svalbard cable looked like
#4> The current is used to amplify the fibre optic signals that flow through the 1300km long cables between the peninsula and the Norwegian mainland.
This is magic to me. Anyone have a search term I could use to better understand how electricity is used to boost a fibre optic signal?
Re: What the damaged Svalbard cable looked like
#5TLDR; it probably wasn't the russians, most likely a trawler.
"NRK has previously reported how a Russian trawler crossed the Svalbad cable more than 140 times, and more than a dozen times before the damage occurred in January 2022. The shipowners have denied having anything to do with the damage."
The norwegians seem to think it was a russian trawler and that trawler doesn't exclude the possiblity that russians did it.
Re: What the damaged Svalbard cable looked like
#6> The current is used to amplify the fibre optic signals that flow through the 1300km long cables between the peninsula and the Norwegian mainland. This is magic to me. Anyone have a search term I could use to better understand how electricity is used to boost a fibre optic signal?
The optical signal repeaters that are part of the cable every N kilometers need power to do their job.
Re: What the damaged Svalbard cable looked like
#7> The current is used to amplify the fibre optic signals that flow through the 1300km long cables between the peninsula and the Norwegian mainland. This is magic to me. Anyone have a search term I could use to better understand how electricity is used to boost a fibre optic signal?
The optical signal repeaters that are part of the cable every N kilometers need power to do their job.
Ohh there’s physical electronic repeaters. Okay. I thought this was some sort of electromagnetism witchcraft.
Re: What the damaged Svalbard cable looked like
#8> The current is used to amplify the fibre optic signals that flow through the 1300km long cables between the peninsula and the Norwegian mainland. This is magic to me. Anyone have a search term I could use to better understand how electricity is used to boost a fibre optic signal?
[deleted]
Re: What the damaged Svalbard cable looked like
#9> The current is used to amplify the fibre optic signals that flow through the 1300km long cables between the peninsula and the Norwegian mainland. This is magic to me. Anyone have a search term I could use to better understand how electricity is used to boost a fibre optic signal?
"Fiber optic amplifier undersea" should do the trick. It's not that the power supply wrapped around/alongside the fiber does anything directly; it's being delivered to amplifiers. There's a hackaday article that's got some history in it.
Re: What the damaged Svalbard cable looked like
#10> The critically important cable that connects Svalbard to the mainland is no thicker than a pinkie finger
This is amazing. I wonder how much data per unit of time this is capable of transporting.
Wikipedia says "Each segment has a speed of 10 gigabits per second (Gb/s), with a future potential capacity of 2,500 Gbit/s." [1]
Wikipedia also notes that NASA helped fund this system.
[1] https://en.wikipedia.org/wiki/Svalbard_Undersea_Cable_System