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this post was submitted on 15 Apr 2024
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We already have transceivers that perform forward error correction. That technology is a decade+ old.
Dispersion compensation and FEC are separate layers of the cake, and work hand in hand.
"I haven't read it, but I assume these are things they didn't take into account."
Okay then.
if there is a paper you probably can't read it because it's published behind a pay wall, because fuck normies i guess.
that's cool. Unfortunately a lot of actual research is still pay walled.
The zero dispersion wavelength of G.652.D fiber is between 1302 nm and 1322 nm, in the O-band.
Dispersion pretty much linearly increases as you move away from its zero dispersion wavelength.
Typical current DWDM systems operate in the range of 1528.38 nm to 1563.86 nm, in the C-band.
Group dispersion in the E-band and S-band is lower than at current DWDM wavelengths, because these bands sit between the O-band and the C-band.