On Thursday, 27 September 2018 21:36:01 UTC+1, Vir Campestris wrote:
On 27/09/2018 18:35, R. Mark Clayton wrote:
So just remind everyone - what data rate can be [readily] achieved down a single fibre in Tbps?

WTF would anyone be daft enough to install 3456 core fibre cables anywhere [when just a few (for redundancy) would do]?



Hint - some clues here : -

https://en.wikipedia.org/wiki/Optica...#Record_speeds

Openreach use passive optical splitters so they don't have to have
powered kit scattered about. The bitrate is limited by what the customer
site fibre modems can handle - way below the fibre's limit.

Andy

Interesting - 10Gbps fibre modems are £££ as opposed to ££ for 1Gbps.

Can they use a diffraction grating to extract multiple beams from the same fibre?