[AusNOG] 100G/200G/400G coming down the pipe (so to speak)

[Ben Dale]

On 08/03/2012, at 10:27 AM, Darren Ward (darrward) wrote:

> Using 2 or 4 waves for 100G is a very very bad way to do it and is only looked at by vendors who don't have a real 100G transmission solution so they just convert the short haul multilane 'lanes' into separate channels for transmission
> 
> 100G MH/LH/ULH DWDM is single 50GHz lambda which is the efficiency difference, one optic, one channel vs 10x10G waves and 10x10G optics which is the cost benefit Matthew mentions
> 
> I hate mentioning anything vendor on this list and so will keep it to technology specifically so a couple of vendors use coherent optics in a way called CP-PMQDSPK for example to run a single channel 100G 50GHz wavelength. 
> 
> Still cheaper than 10x10G despite adding the coherent DSP...

Thanks Darren - that's good info to know.  Using 4-lanes on LH was my assumption based on the way it is done on some short-range transceivers, so such a beast may not even exist in the real world ; )

Ben