Dispersion Map Calculator

Design a dispersion map for a fiber link using SMF and DCF segments.

SMF Length (km)SMF Dispersion (ps/nm/km)SMF Slope (ps/nm²/km)DCF Length (km)DCF Dispersion (ps/nm/km)DCF Slope (ps/nm²/km)Reference λ (where D, S are given)

Net Dispersion

-140 ps/nm

SMF Total

1360 ps/nm

DCF Total

-1500 ps/nm

Residual Slope

1.480 ps/nm²

Model and references

Textbook approximation. A standard approximation from the literature (for example paraxial, plane-wave or Gaussian-beam), valid within the range the page states. About the tiers

Linear D(λ) per segment: net dispersion L_s D_s + L_c D_c and residual slope L_s S_s + L_c S_c. Not modelled: dispersion curvature (strong in DCF), loss, nonlinearity, PMD.

Agrawal G. P. (2010). Fiber-Optic Communication Systems, 4th ed. Wiley. Dispersion-management chapter. doi:10.1002/9780470918524

Report a problem