According to ITU-T G.652.D, what specific improvement was made to standard single-mode fiber to support CWDM across the entire spectrum?
Answers
AAddition of a primary acrylate coating
BElimination of the "water peak" attenuation around 1383nm
CShifting the zero-dispersion wavelength to 1550nm
DIncrease of the core size to 10 microns
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