A single mode fiber has refractive indices n1=1.50, n2 = 2.23, core diameter of 8 m, wavelength = 1.5 m cutoff wavelength = 1.214 m. Find the radius of curvature?

A single mode fiber has refractive indices n1=1.50, n2 = 2.23, core di

1.	A single mode fiber has refractive indices n1=1.50, n2 = 2.23, core diameter of 8 m, wavelength = 1.5 m cutoff wavelength = 1.214 m. Find the radius of curvature?
A.	12 mm
B.	20 mm
C.	34 mm
D.	36 mm
Answer» D. 36 mm