Subsea Cables & Internet Infrastructure

Hollow core enjoys 33% lower latency than standard solid core single mode fibre. Moreover, it offers at least 50% more bandwidth because a much wider spectrum band can be used. In contrast, solid glass is hobbled by high attenuation outside the C and L bands. A final advantage is hollow core exhibits little chromatic dispersion. Single mode fibre is bedeviled by polar mode and chromatic dispersion. In each case, the speed of light through glass varies sufficiently by wavelength to blur the signal by the time it reaches the far end. The coherent optics revolution was largely about using digital signal processing to unscramble the signal or more precisely to use physics to work backwards and infer the original, pristine signal. But hollow core technology until now has been stymied by very high optical attenuation. This simply means the light fades rapidly as it passes through the hollow core. The light is absorbed rapidly by the surrounding glass border due to the absence of refraction. ...

META's chief AI scientist, Yann LeCun, explains why neither Google nor META has deployed something like ChatGPT despite developing many of the underlying techniques. "I mean you have to realize that most of the underlying techniques used in ChatGPT were invented at Google and META. If you are META or Google, you can think about putting out a system like this that you know is going to spew nonsense and you know because you are a large company you have lot to lose by people making fun of you for that." Click for the complete interview : https://www.youtube.com/shorts/bdYylvhZ9T0

Right now the industry's service performance is really bad. Much of the responsibility lies with the venture capital owners and senior management. In particular there is this prevalent dotcom era notion that fibre equals value. It does not. What generates value are well managed, high performance assets generating a lot of revenue with lean overhead and happy customers. As a result, we are seeing builds by carriers that should be focusing on achieving excellent customer service and network performance, including provisioning. ***One major European long provider is quoting three month delivery of terrestrial 100G waves. They are aggressively expand their network, but apparently their venture owners forgot that the market does not highly value empty networks. On-net circuit provisioning should take two weeks. In exceptional cases as little as one week. It is hard for me to see why provisioning should take longer.  ***Customer service in general is an abomination. If there were a telec...