Thanks Curtis, for spelling it out. Your comments effectively validate, with greater detail, my previous reference to "qualified" strands.
Re: >> The newer carriers who are currently building (LVLT, Williams and others) are installing NZ-DSF, an absolute necessity.<<
I recall LVLT announcing several months ago that they would become the first interstate to be using large effective area fiber, or LEAF.
>>but suffice it to say, the factors like Amplified Spontaneous Emission (ASE), Polarization Dispersion and myriads of others, limit the effective use of a fiber at higher rates (OC-192), and at tighter wavelength spacings.<<
We might as well give it closure, and include the water molecules that prevent windows above 1600 nm from being used effectively over distances, although LU now claims to have found a means in their labs to mitigate that problem significantly. We'll see.
Regards, Frank Coluccio
ps - we miss your input over in the VoIP section. Come by and honor us from time to time, will you? Nothing of major interest brewing over there now, aside from Jeff Pulver's conference releases, but I'll be putting up some discussion on the many [and potentially <cough!> conflicting] SS7/IETF/IPDC/TIPHON/OSP/SIP/SGCP, etc., and the proposed harmonization approaches, soon. Hope to see you there. FAC |
