In a single-mode optical fiber, the zero-dispersion wavelength refers to the wavelength at which the

Q. In a single-mode optical fiber, the zero-dispersion wavelength refers to the wavelength at which the

(A) material dispersion is zero.

(B) waveguide dispersion is zero.

(C) sum of material dispersion and waveguide dispersion is zero.

(D) material dispersion and waveguide dispersion are simultaneously zero.

Ans: sum of material dispersion and waveguide dispersion is zero.