Optical Communication - Study Mode

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[#186] A single-mode step-index fiber or multimode step-index fiber allows propagation of only one transverse electromagnetic wave.

(A) True

(B) False

Correct Answer

(A) True

[#187] Numerical aperture is constant in case of step index fiber.

(A) True

(B) False

Correct Answer

(A) True

[#188] What is the numerical aperture of the fiber if the angle of acceptance is 16 degree?

(A) 0.5

(B) 0.36

(C) 0.2

(D) 0.27

Correct Answer

(D) 0.27

[#189] Rayleigh scattering can be reduced by operating at smallest possible wavelengths.

(A) True

(B) False

Correct Answer

(B) False

[#190] Intermodal dispersion occurring in a large amount in multimode step index fiber results in . . . . . . . .

(A) Propagation of the fiber

(B) Propagating through the fiber

(C) Pulse broadening at output

(D) Attenuation of waves

Correct Answer

(C) Pulse broadening at output