Optical Communication MCQ Questions & Answers

Optical Communication MCQ Questions & Answers | ECE

Learn Optical Communication MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Optical Communication MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-1 section-2

The beating between light at different frequencies or wavelengths in multichannel fiber transmission causes . . . . . . . .

A) Attenuation B) Amplitude modulation of channels C) Phase modulation of channels D) Loss in transmission

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Answer & Solution

Answer: Option C

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How many categories of nonlinear effects are seen in optical fibers?

A) One B) Two C) Three D) Four

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Answer & Solution

Answer: Option B

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Chromatic dispersion is also called as intermodal dispersion.

A) True B) False

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Answer & Solution

Answer: Option B

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Conventional optical fibers has more transmission losses than photonic crystal fibers.

A) True B) False

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Answer & Solution

Answer: Option A

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The in-homogeneities in Mie scattering can be reduced by coating of a fiber.

A) True B) False

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Answer & Solution

Answer: Option A

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Meridional rays in graded index fibers follow . . . . . . . .

A) Straight path along the axis B) Curved path along the axis C) Path where rays changes angles at core-cladding interface D) Helical path

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Answer & Solution

Answer: Option B

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Dispersion-shifted single mode fibers are created by . . . . . . . . .

A) Increasing fiber core diameter and decreasing fractional index difference B) Decreasing fiber core diameter and decreasing fractional index difference C) Decreasing fiber core diameter and increasing fractional index difference D) Increasing fiber core diameter and increasing fractional index difference

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Answer & Solution

Answer: Option C

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A decibel may be defined as the ratio of input and output optical power for a particular optical wavelength.

A) True B) False

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Answer & Solution

Answer: Option A

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Stimulated Raman scattering occur in . . . . . . . .

A) Forward direction B) Backward direction C) Upward direction D) Forward and backward direction

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Answer & Solution

Answer: Option D

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A single mode fiber has a beat length of 4cm at 1200nm. What is birefringence?

A) 2^∗10^-5 B) 1.2^∗10^-5 C) 3^∗10^-5 D) 2

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Answer & Solution

Answer: Option C

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