Re: Eir, Vodafone & Sky
Interestingly, most Fibre is also broadband, because the carriers use multiple frequencies of laser light down the Fibre
Weeell, yes and no. AIUI, the bulk of FTTP provided by OpenRetch for domestic internet will be passively multiplexed - so multiple subscribers will share one fibre using FDM, with one fibre from the exchange passively split to connect multiple houses in the street. But at the customer termination, it will be narrowband suing a single frequency.
For FTTP on Demand it's a fibre PtP link (ie user to exchange) and is narrowband - simply because it's logistically easier to do it that way.
Thing is, using decent quality fibre terminated by decent quality transceivers, the distance-bandwidth product is very high and doesn't need broadband to give good speeds even over quite long distances.