Table 1 Values of sellmeier coefficients for background silica material.

From: Numerical analysis of photonic crystal fiber of ultra-high birefringence and high nonlinearity

Parameters

Constants

B1

0.69675

B2

0.408218

B3

0.890815

C1

4.67914826e-3

C2

1.35120631e-2

C3

97.9340025