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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-2 section-1

Each section contains 100 MCQs on Optical Communication .
11
A single mode fiber has refractive indices n1=1.50, n2 = 2.23, core diameter of 8μm, wavelength = 1.5μm cutoff wavelength = 1.214μm. Find the radius of curvature?
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Answer: Option C
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12
0.4 dB/km, 1.4μm, 6μm, 550MHz. Find threshold optical power for stimulated Raman scattering.
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Answer: Option C
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13
A single mode fiber has a zero dispersion wavelength of 1.21μm and a dispersion slope of 0.08 psnm-2km-1. What is the total first order dispersion at wavelength 1.26μm.
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Answer: Option B
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14
Linear scattering effects are . . . . . . . . in nature.
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Answer: Option A
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15
For many applications that involve optical fiber transmission, an intensity modulation optical source is not required.
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Answer: Option B
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16
Which equation is used to calculate MFD?
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Answer: Option B
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17
. . . . . . . . results from a case of nonlinear dispersion compensation in which the nonlinear dispersion compensation in which the nonlinear chirp caused by self-phase modulation balances, postpones, the temporal broadening induced by group velocity delay.
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Answer: Option C
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18
When λ is the optical wavelength in vacuum, k is given by $$k = \frac{{2\pi }}{\lambda }.$$  What does k stand for in the
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Answer: Option A
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19
An alternative modification of the dispersion characteristics of single mode fibers involves achievement of low dispersion gap over the low-loss wavelength region between . . . . . . . .
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Answer: Option C
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20
Digital transmission is more likely to be affected by modal noise.
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Answer: Option B
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