The zero dispersion wavelength of G.652.D fiber is between 1302 nm and 1322 nm, in the O-band.
Typical current DWDM systems operate in the range of 1528.38 to 1563.86nm, in the C-band.
Group dispersion in the E-band and S-band is lower than at current DWDM wavelengths, because they sit between O-band and C-band, and it pretty much linearly increases from it’s zero dispersion wavelength.
The zero dispersion wavelength of G.652.D fiber is between 1302 nm and 1322 nm, in the O-band.
Typical current DWDM systems operate in the range of 1528.38 to 1563.86nm, in the C-band.
Group dispersion in the E-band and S-band is lower than at current DWDM wavelengths, because they sit between O-band and C-band, and it pretty much linearly increases from it’s zero dispersion wavelength.